michael@0: /*
michael@0:  * Copyright (c) 1999
michael@0:  * Silicon Graphics Computer Systems, Inc.
michael@0:  *
michael@0:  * Copyright (c) 1999
michael@0:  * Boris Fomitchev
michael@0:  *
michael@0:  * This material is provided "as is", with absolutely no warranty expressed
michael@0:  * or implied. Any use is at your own risk.
michael@0:  *
michael@0:  * Permission to use or copy this software for any purpose is hereby granted
michael@0:  * without fee, provided the above notices are retained on all copies.
michael@0:  * Permission to modify the code and to distribute modified code is granted,
michael@0:  * provided the above notices are retained, and a notice that the code was
michael@0:  * modified is included with the above copyright notice.
michael@0:  *
michael@0:  */
michael@0: 
michael@0: #include "stlport_prefix.h"
michael@0: 
michael@0: #include <cmath>
michael@0: #include <ios>
michael@0: #include <locale>
michael@0: 
michael@0: #if defined (__DECCXX)
michael@0: #  define NDIG 400
michael@0: #else
michael@0: #  define NDIG 82
michael@0: #endif
michael@0: 
michael@0: #define todigit(x) ((x)+'0')
michael@0: 
michael@0: #if defined (_STLP_UNIX)
michael@0: 
michael@0: #  if defined (__sun)
michael@0: #    include <floatingpoint.h>
michael@0: #  endif
michael@0: 
michael@0: #  if defined (__sun) || defined (__digital__) || defined (__sgi) || defined (_STLP_SCO_OPENSERVER) || defined (__NCR_SVR)
michael@0: // DEC, SGI & Solaris need this
michael@0: #    include <values.h>
michael@0: #    include <nan.h>
michael@0: #  endif
michael@0: 
michael@0: #  if defined (__QNXNTO__) || ( defined(__GNUC__) && defined(__APPLE__) ) || defined(_STLP_USE_UCLIBC) /* 0.9.26 */ || \
michael@0:       defined(__FreeBSD__)
michael@0: #    define USE_SPRINTF_INSTEAD
michael@0: #  endif
michael@0: 
michael@0: #  if defined (_AIX) // JFA 3-Aug-2000
michael@0: #    include <math.h>
michael@0: #    include <float.h>
michael@0: #  endif
michael@0: 
michael@0: #  include <math.h>
michael@0: #endif
michael@0: 
michael@0: #include <cstdio>
michael@0: #include <cstdlib>
michael@0: 
michael@0: #if defined (_STLP_MSVC_LIB) || defined (__MINGW32__) || defined (__BORLANDC__) || defined (__DJGPP) || \
michael@0:     defined (_STLP_SCO_OPENSERVER) || defined (__NCR_SVR)
michael@0: #  include <float.h>
michael@0: #endif
michael@0: 
michael@0: #if defined (__MRC__) || defined (__SC__)  || defined (_CRAY)  //*TY 02/24/2000 - added support for MPW
michael@0: #  include <fp.h>
michael@0: #endif
michael@0: 
michael@0: #if defined (__CYGWIN__)
michael@0: #  include <ieeefp.h>
michael@0: #endif
michael@0: 
michael@0: #if defined (__MSL__)
michael@0: #  include <cstdlib>  // for atoi
michael@0: #  include <cstdio>  // for snprintf
michael@0: #  include <algorithm>
michael@0: #  include <cassert>
michael@0: #endif
michael@0: 
michael@0: #if defined (__ISCPP__)
michael@0: #  include <cfloat>
michael@0: #endif
michael@0: 
michael@0: #include <algorithm>
michael@0: 
michael@0: #if defined (__DMC__)
michael@0: #  define snprintf _snprintf
michael@0: #endif
michael@0: 
michael@0: _STLP_BEGIN_NAMESPACE
michael@0: 
michael@0: _STLP_MOVE_TO_PRIV_NAMESPACE
michael@0: 
michael@0: #if defined (__MWERKS__) || defined(__BEOS__)
michael@0: #  define USE_SPRINTF_INSTEAD
michael@0: #endif
michael@0: 
michael@0: template <int N>
michael@0: struct _Dig
michael@0: {
michael@0:     enum { dig = _Dig<N/10>::dig + 1 };
michael@0: };
michael@0: 
michael@0: _STLP_TEMPLATE_NULL
michael@0: struct _Dig<0>
michael@0: {
michael@0:     enum { dig = 0 };
michael@0: };
michael@0: 
michael@0: #ifdef _STLP_NO_LONG_DOUBLE
michael@0: # define MAXEDIGITS int(_Dig<DBL_MAX_10_EXP>::dig)
michael@0: # define MAXFSIG DBL_DIG
michael@0: # define MAXFCVT (DBL_DIG + 1)
michael@0: #else
michael@0: # define MAXEDIGITS int(_Dig<LDBL_MAX_10_EXP>::dig)
michael@0: # define MAXFSIG LDBL_DIG
michael@0: # define MAXFCVT (LDBL_DIG + 1)
michael@0: #endif
michael@0: 
michael@0: // Tests for infinity and NaN differ on different OSs.  We encapsulate
michael@0: // these differences here.
michael@0: #if !defined (USE_SPRINTF_INSTEAD)
michael@0: #  if defined (__hpux) && defined (__GNUC__)
michael@0: #    define _STLP_USE_SIGN_HELPER
michael@0: #  elif defined (__DJGPP) || (defined (_STLP_USE_GLIBC) && ! defined (__MSL__)) || \
michael@0:       defined (__CYGWIN__) || \
michael@0:       defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || \
michael@0:       defined (__HP_aCC)
michael@0: static inline bool _Stl_is_nan_or_inf(double x)
michael@0: #    if defined (isfinite)
michael@0: { return !isfinite(x); }
michael@0: #    else
michael@0: { return !finite(x); }
michael@0: #    endif
michael@0: static inline bool _Stl_is_neg_nan(double x)    { return isnan(x) && ( copysign(1., x) < 0 ); }
michael@0: static inline bool _Stl_is_inf(double x)        { return isinf(x); }
michael@0: // inline bool _Stl_is_neg_inf(double x)    { return isinf(x) < 0; }
michael@0: static inline bool _Stl_is_neg_inf(double x)    { return isinf(x) && x < 0; }
michael@0: #  elif (defined (__unix) || defined (__unix__)) && \
michael@0:          !defined (__APPLE__) && !defined (__DJGPP) && !defined(__osf__) && \
michael@0:          !defined (_CRAY) && !defined (__ANDROID__)
michael@0: static inline bool _Stl_is_nan_or_inf(double x) { return IsNANorINF(x); }
michael@0: static inline bool _Stl_is_inf(double x)        { return IsNANorINF(x) && IsINF(x); }
michael@0: static inline bool _Stl_is_neg_inf(double x)    { return (IsINF(x)) && (x < 0.0); }
michael@0: static inline bool _Stl_is_neg_nan(double x)    { return IsNegNAN(x); }
michael@0: #  elif defined (_STLP_MSVC_LIB) || defined (__MINGW32__) || defined (__BORLANDC__)
michael@0: static inline bool _Stl_is_nan_or_inf(double x) { return !_finite(x); }
michael@0: #    if !defined (__BORLANDC__)
michael@0: static inline bool _Stl_is_inf(double x)        {
michael@0:   int fclass = _fpclass(x);
michael@0:   return fclass == _FPCLASS_NINF || fclass == _FPCLASS_PINF;
michael@0: }
michael@0: static inline bool _Stl_is_neg_inf(double x)    { return _fpclass(x) == _FPCLASS_NINF; }
michael@0: #    else
michael@0: static inline bool _Stl_is_inf(double x)        {  return _Stl_is_nan_or_inf(x) && !_isnan(x);}
michael@0: static inline bool _Stl_is_neg_inf(double x)    {  return _Stl_is_inf(x) && x < 0 ; }
michael@0: #    endif
michael@0: static inline bool _Stl_is_neg_nan(double x)    { return _isnan(x) && _copysign(1., x) < 0 ; }
michael@0: #    if defined (__BORLANDC__)
michael@0: static inline bool _Stl_is_nan_or_inf(long double x) { return !_finitel(x); }
michael@0: static inline bool _Stl_is_inf(long double x)        {  return _Stl_is_nan_or_inf(x) && !_isnanl(x);}
michael@0: static inline bool _Stl_is_neg_inf(long double x)    {  return _Stl_is_inf(x) && x < 0 ; }
michael@0: static inline bool _Stl_is_neg_nan(long double x)    { return _isnanl(x) && _copysignl(1.l, x) < 0 ; }
michael@0: #    elif !defined (_STLP_NO_LONG_DOUBLE)
michael@0: // Simply there to avoid warning long double -> double implicit conversion:
michael@0: static inline bool _Stl_is_nan_or_inf(long double x) { return _Stl_is_nan_or_inf(__STATIC_CAST(double, x)); }
michael@0: static inline bool _Stl_is_inf(long double x)        {  return _Stl_is_inf(__STATIC_CAST(double, x));}
michael@0: static inline bool _Stl_is_neg_inf(long double x)    {  return _Stl_is_neg_inf(__STATIC_CAST(double, x)); }
michael@0: static inline bool _Stl_is_neg_nan(long double x)    { return _Stl_is_neg_nan(__STATIC_CAST(double, x)); }
michael@0: #    endif
michael@0: #  elif defined (__MRC__) || defined (__SC__) || defined (__DMC__)
michael@0: static bool _Stl_is_nan_or_inf(double x) { return isnan(x) || !isfinite(x); }
michael@0: static bool _Stl_is_inf(double x)        { return !isfinite(x); }
michael@0: static bool _Stl_is_neg_inf(double x)    { return !isfinite(x) && signbit(x); }
michael@0: static bool _Stl_is_neg_nan(double x)    { return isnan(x) && signbit(x); }
michael@0: #  elif /* defined(__FreeBSD__) || defined(__OpenBSD__) || */ (defined(__GNUC__) && defined(__APPLE__))
michael@0: static inline bool _Stl_is_nan_or_inf(double x) { return !finite(x); }
michael@0: static inline bool _Stl_is_inf(double x)        {   return _Stl_is_nan_or_inf(x) && ! isnan(x); }
michael@0: static inline bool _Stl_is_neg_inf(double x)    {   return _Stl_is_inf(x) && x < 0 ; }
michael@0: static inline bool _Stl_is_neg_nan(double x)    { return isnan(x) && copysign(1., x) < 0 ; }
michael@0: #  elif defined( _AIX ) // JFA 11-Aug-2000
michael@0: static bool _Stl_is_nan_or_inf(double x) { return isnan(x) || !finite(x); }
michael@0: static bool _Stl_is_inf(double x)        { return !finite(x); }
michael@0: // bool _Stl_is_neg_inf(double x)    { return _class(x) == FP_MINUS_INF; }
michael@0: static bool _Stl_is_neg_inf(double x)    { return _Stl_is_inf(x) && ( copysign(1., x) < 0 );  }
michael@0: static bool _Stl_is_neg_nan(double x)    { return isnan(x) && ( copysign(1., x) < 0 );  }
michael@0: #  elif defined (__ISCPP__)
michael@0: static inline bool _Stl_is_nan_or_inf  (double x) { return _fp_isINF(x) || _fp_isNAN(x); }
michael@0: static inline bool _Stl_is_inf         (double x) { return _fp_isINF(x); }
michael@0: static inline bool _Stl_is_neg_inf     (double x) { return _fp_isINF(x) && x < 0; }
michael@0: static inline bool _Stl_is_neg_nan     (double x) { return _fp_isNAN(x) && x < 0; }
michael@0: #  elif defined (_CRAY)
michael@0: #    if defined (_CRAYIEEE)
michael@0: static inline bool _Stl_is_nan_or_inf(double x) { return isnan(x) || isinf(x); }
michael@0: static inline bool _Stl_is_inf(double x)        { return isinf(x); }
michael@0: static inline bool _Stl_is_neg_inf(double x)    { return isinf(x) && signbit(x); }
michael@0: static inline bool _Stl_is_neg_nan(double x)    { return isnan(x) && signbit(x); }
michael@0: #    else
michael@0: static inline bool _Stl_is_nan_or_inf(double x) { return false; }
michael@0: static inline bool _Stl_is_inf(double x)        { return false; }
michael@0: static inline bool _Stl_is_neg_inf(double x)    { return false; }
michael@0: static inline bool _Stl_is_neg_nan(double x)    { return false; }
michael@0: #    endif
michael@0: #  else // nothing from above
michael@0: #    define USE_SPRINTF_INSTEAD
michael@0: #  endif
michael@0: #endif // !USE_SPRINTF_INSTEAD
michael@0: 
michael@0: #if !defined (USE_SPRINTF_INSTEAD)
michael@0: // Reentrant versions of floating-point conversion functions.  The argument
michael@0: // lists look slightly different on different operating systems, so we're
michael@0: // encapsulating the differences here.
michael@0: 
michael@0: #  if defined (__CYGWIN__) || defined(__DJGPP)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return ecvtbuf(x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return fcvtbuf(x, n, pt, sign, buf); }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE)
michael@0: #      if defined (__CYGWIN__)
michael@0: #        define _STLP_EMULATE_LONG_DOUBLE_CVT
michael@0: #      else
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return ecvtbuf(x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return fcvtbuf(x, n, pt, sign, buf); }
michael@0: #      endif
michael@0: #    endif
michael@0: #  elif defined (_STLP_USE_GLIBC)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return ecvt_r(x, n, pt, sign, buf, bsize) == 0 ? buf : 0; }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return fcvt_r(x, n, pt, sign, buf, bsize) == 0 ? buf : 0; }
michael@0: #    ifndef _STLP_NO_LONG_DOUBLE
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return qecvt_r(x, n, pt, sign, buf, bsize) == 0 ? buf : 0; }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return qfcvt_r(x, n, pt, sign, buf, bsize) == 0 ? buf : 0; }
michael@0: #    endif
michael@0: #    define _STLP_NEED_CVT_BUFFER_SIZE
michael@0: #  elif defined (__sun)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return econvert(x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return fconvert(x, n, pt, sign, buf); }
michael@0: #    ifndef _STLP_NO_LONG_DOUBLE
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return qeconvert(&x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return qfconvert(&x, n, pt, sign, buf); }
michael@0: #    endif
michael@0: #  elif defined (__DECCXX)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return (ecvt_r(x, n, pt, sign, buf, bsize) == 0 ? buf : 0); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return (fcvt_r(x, n, pt, sign, buf, bsize) == 0 ? buf : 0); }
michael@0: #    ifndef _STLP_NO_LONG_DOUBLE
michael@0: // fbp : no "long double" conversions !
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return (ecvt_r((double)x, n, pt, sign, buf, bsize) == 0 ? buf : 0) ; }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf, size_t bsize)
michael@0: { return (fcvt_r((double)x, n, pt, sign, buf, bsize) == 0 ? buf : 0); }
michael@0: #    endif
michael@0: #    define _STLP_NEED_CVT_BUFFER_SIZE
michael@0: #  elif defined (__hpux)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign)
michael@0: { return ecvt(x, n, pt, sign); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign)
michael@0: { return fcvt(x, n, pt, sign); }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE)
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign)
michael@0: { return _ldecvt(*(long_double*)&x, n, pt, sign); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign)
michael@0: { return _ldfcvt(*(long_double*)&x, n, pt, sign); }
michael@0: #    endif
michael@0: #    define _STLP_CVT_NEED_SYNCHRONIZATION
michael@0: #  elif defined (__unix) && !defined (__APPLE__) && !defined (_CRAY) && \
michael@0:         !defined (__ANDROID__)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return ecvt_r(x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return fcvt_r(x, n, pt, sign, buf); }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE)
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return qecvt_r(x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return qfcvt_r(x, n, pt, sign, buf); }
michael@0: #    endif
michael@0: #  elif defined (_STLP_MSVC_LIB) || defined (__MINGW32__) || defined (__BORLANDC__)
michael@0: #    if defined (_STLP_USE_SAFE_STRING_FUNCTIONS)
michael@0: #      define _STLP_APPEND(a, b) a##b
michael@0: #      define _STLP_BUF_PARAMS , char* buf, size_t bsize
michael@0: #      define _STLP_SECURE_FUN(F, X, N, PT, SIGN) _STLP_APPEND(F, _s)(buf, bsize, X, N, PT, SIGN); return buf
michael@0: #    else
michael@0: #      define _STLP_BUF_PARAMS
michael@0: #      define _STLP_SECURE_FUN(F, X, N, PT, SIGN) return F(X, N, PT, SIGN)
michael@0: #      define _STLP_CVT_NEED_SYNCHRONIZATION
michael@0: #    endif
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign _STLP_BUF_PARAMS)
michael@0: { _STLP_SECURE_FUN(_ecvt, x, n, pt, sign); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign _STLP_BUF_PARAMS)
michael@0: { _STLP_SECURE_FUN(_fcvt, x, n, pt, sign); }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE)
michael@0: #      if defined (_STLP_USE_SAFE_STRING_FUNCTIONS)
michael@0: #        define _STLP_PARAMS , buf, bsize
michael@0: #      else
michael@0: #        define _STLP_PARAMS
michael@0: #      endif
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign _STLP_BUF_PARAMS)
michael@0: { return _Stl_ecvtR(__STATIC_CAST(double, x), n, pt, sign _STLP_PARAMS); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign _STLP_BUF_PARAMS)
michael@0: { return _Stl_fcvtR(__STATIC_CAST(double, x), n, pt, sign _STLP_PARAMS); }
michael@0: #      undef _STLP_PARAMS
michael@0: #    endif
michael@0: #    undef _STLP_SECURE_FUN
michael@0: #    undef _STLP_BUF_PARAMS
michael@0: #    undef _STLP_APPEND
michael@0: #    if defined (__BORLANDC__) /* || defined (__GNUC__) MinGW do not support 'L' modifier so emulation do not work */
michael@0: #      define _STLP_EMULATE_LONG_DOUBLE_CVT
michael@0: #    endif
michael@0: #  elif defined (__ISCPP__)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return _fp_ecvt( x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char* buf)
michael@0: { return _fp_fcvt(x, n, pt, sign, buf); }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE)
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return _fp_ecvt( x, n, pt, sign, buf); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf)
michael@0: { return _fp_fcvt(x, n, pt, sign, buf); }
michael@0: #    endif
michael@0: #  elif defined (_AIX) || defined (__FreeBSD__) || defined (__NetBSD__) || defined (__OpenBSD__) || \
michael@0:         defined (__MRC__) || defined (__SC__) || defined (_CRAY) || \
michael@0:         defined (_STLP_SCO_OPENSERVER) || defined (__NCR_SVR) || \
michael@0:         defined (__DMC__)
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign)
michael@0: { return ecvt(x, n, pt, sign ); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign)
michael@0: { return fcvt(x, n, pt, sign); }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE)
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign)
michael@0: { return ecvt(x, n, pt, sign ); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign)
michael@0: { return fcvt(x, n, pt, sign); }
michael@0: #    endif
michael@0: #    define _STLP_CVT_NEED_SYNCHRONIZATION
michael@0: #  else
michael@0: #    error Missing _Stl_ecvtR and _Stl_fcvtR implementations.
michael@0: #  endif
michael@0: 
michael@0: #if defined (_STLP_CVT_NEED_SYNCHRONIZATION)
michael@0: /* STLport synchronize access to *cvt functions but those methods might
michael@0:  * be called from outside, in this case we will still have a race condition. */
michael@0: #  if defined (_STLP_THREADS)
michael@0: static _STLP_STATIC_MUTEX& put_float_mutex() {
michael@0:   static _STLP_STATIC_MUTEX __put_float_mutex _STLP_MUTEX_INITIALIZER;
michael@0:   return __put_float_mutex;
michael@0: }
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char* buf) {
michael@0:   _STLP_auto_lock lock(put_float_mutex());
michael@0:   strcpy(buf, _Stl_ecvtR(x, n, pt, sign)); return buf;
michael@0: }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char* buf) {
michael@0:   _STLP_auto_lock lock(put_float_mutex());
michael@0:   strcpy(buf, _Stl_fcvtR(x, n, pt, sign)); return buf;
michael@0: }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE) && !defined (_STLP_EMULATE_LONG_DOUBLE_CVT)
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf) {
michael@0:   _STLP_auto_lock lock(put_float_mutex());
michael@0:   strcpy(buf, _Stl_ecvtR(x, n, pt, sign)); return buf;
michael@0: }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf) {
michael@0:   _STLP_auto_lock lock(put_float_mutex());
michael@0:   strcpy(buf, _Stl_fcvtR(x, n, pt, sign)); return buf;
michael@0: }
michael@0: #    endif
michael@0: #  else
michael@0: static inline char* _Stl_ecvtR(double x, int n, int* pt, int* sign, char*)
michael@0: { return _Stl_ecvtR(x, n, pt, sign); }
michael@0: static inline char* _Stl_fcvtR(double x, int n, int* pt, int* sign, char*)
michael@0: { return _Stl_fcvtR(x, n, pt, sign); }
michael@0: #    if !defined (_STLP_NO_LONG_DOUBLE) && !defined (_STLP_EMULATE_LONG_DOUBLE_CVT)
michael@0: static inline char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char*)
michael@0: { return _Stl_ecvtR(x, n, pt, sign); }
michael@0: static inline char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char*)
michael@0: { return _Stl_fcvtR(x, n, pt, sign); }
michael@0: #    endif
michael@0: #  endif
michael@0: #endif
michael@0: 
michael@0: #  if !defined (_STLP_USE_SAFE_STRING_FUNCTIONS) && !defined (_STLP_NEED_CVT_BUFFER_SIZE)
michael@0: #    define _STLP_CVT_BUFFER(B) B
michael@0: #  else
michael@0: #    define _STLP_CVT_BUFFER(B) _STLP_ARRAY_AND_SIZE(B)
michael@0: #  endif
michael@0: 
michael@0: #  if defined (_STLP_EMULATE_LONG_DOUBLE_CVT)
michael@0: static void __fill_fmtbuf(char* fmtbuf, ios_base::fmtflags flags, char long_modifier);
michael@0: 
michael@0: // Emulation of ecvt/fcvt functions using sprintf:
michael@0: static char* _Stl_ecvtR(long double x, int n, int* pt, int* sign, char* buf) {
michael@0:   // If long double value can be safely converted to double without losing precision
michael@0:   // we use the ecvt function for double:
michael@0:   double y = __STATIC_CAST(double, x); 
michael@0:   if (x == y)
michael@0:     return _Stl_ecvtR(y, n, pt, sign, buf);
michael@0: 
michael@0:   char fmtbuf[32];
michael@0:   __fill_fmtbuf(fmtbuf, 0, 'L');
michael@0:   sprintf(buf, fmtbuf, n, x < 0.0l ? -x : x);
michael@0:   /* We are waiting for something having the form x.xxxe+yyyy */
michael@0:   *pt = 0;
michael@0:   *sign = 0;
michael@0:   int i = -1;
michael@0:   int offset = 0;
michael@0:   while (buf[++i] != 0 && n != 0) {
michael@0:     if (buf[i] >= '0' && buf[i] <= '9') {
michael@0:       --n;
michael@0:       if (offset != 0)
michael@0:         buf[i - offset] = buf[i];
michael@0:     }
michael@0:     else {
michael@0:       if (offset != 0) break;
michael@0:       ++offset;
michael@0:       *pt = i;
michael@0:     }
michael@0:   }
michael@0:   if (offset != 0)
michael@0:     buf[i - offset] = 0;
michael@0:   // Extract exponent part in point position:
michael@0:   int e = 0;
michael@0:   while (buf[++i] != 0) {
michael@0:     if (buf[i] >= '0' && buf[i] <= '9') {
michael@0:       e = e * 10 + (buf[i] - '0');
michael@0:     }
michael@0:   }
michael@0:   *pt += e;
michael@0:   return buf;
michael@0: }
michael@0: 
michael@0: static char* _Stl_fcvtR(long double x, int n, int* pt, int* sign, char* buf) {
michael@0:   // If long double value can be safely converted to double without losing precision
michael@0:   // we use the fcvt function for double:
michael@0:   double y = __STATIC_CAST(double, x);
michael@0:   if (x == y)
michael@0:     return _Stl_fcvtR(y, n, pt, sign, buf);
michael@0: 
michael@0:   char fmtbuf[32];
michael@0:   __fill_fmtbuf(fmtbuf, ios_base::fixed, 'L');
michael@0:   sprintf(buf, fmtbuf, n, x < 0.0l ? -x : x);
michael@0:   *pt = 0;
michael@0:   *sign = 0;
michael@0:   int i = -1;
michael@0:   int offset = 0;
michael@0:   while (buf[++i] != 0 && (offset == 0 || n != 0)) {
michael@0:     if (buf[i] >= '0' && buf[i] <= '9') {
michael@0:       if (offset != 0) {
michael@0:         --n;
michael@0:         buf[i - offset] = buf[i];
michael@0:       }
michael@0:     }
michael@0:     else {
michael@0:       ++offset;
michael@0:       *pt = i;
michael@0:     }
michael@0:   }
michael@0:   if (offset != 0)
michael@0:     buf[i - offset] = 0;
michael@0:   else
michael@0:     *pt = i;
michael@0:   return buf;
michael@0: }
michael@0: #endif
michael@0: 
michael@0: //----------------------------------------------------------------------
michael@0: // num_put
michael@0: 
michael@0: // __format_float formats a mantissa and exponent as returned by
michael@0: // one of the conversion functions (ecvt_r, fcvt_r, qecvt_r, qfcvt_r)
michael@0: // according to the specified precision and format flags.  This is
michael@0: // based on doprnt but is much simpler since it is concerned only
michael@0: // with floating point input and does not consider all formats.  It
michael@0: // also does not deal with blank padding, which is handled by
michael@0: // __copy_float_and_fill.
michael@0: 
michael@0: static size_t __format_float_scientific( __iostring& buf, const char *bp,
michael@0:                                          int decpt, int sign, bool is_zero,
michael@0:                                          ios_base::fmtflags flags,
michael@0:                                          int precision) {
michael@0:   // sign if required
michael@0:   if (sign)
michael@0:     buf += '-';
michael@0:   else if (flags & ios_base::showpos)
michael@0:     buf += '+';
michael@0: 
michael@0:   // first digit of mantissa
michael@0:   buf += *bp++;
michael@0: 
michael@0:   // start of grouping position, grouping won't occur in scientific notation
michael@0:   // as it is impossible to have something like 1234.0e04 but we return a correct
michael@0:   // group position for coherency with __format_float_fixed.
michael@0:   size_t __group_pos = buf.size();
michael@0: 
michael@0:   // decimal point if required
michael@0:   if (precision != 0 || flags & ios_base::showpoint) {
michael@0:     buf += '.';
michael@0:   }
michael@0: 
michael@0:   // rest of mantissa
michael@0:   while (*bp != 0 && precision--)
michael@0:     buf += *bp++;
michael@0: 
michael@0:   // trailing 0 if needed
michael@0:   if (precision > 0)
michael@0:     buf.append(precision, '0');
michael@0: 
michael@0:   // exponent size = number of digits + exponent sign + exponent symbol + trailing zero
michael@0:   char expbuf[MAXEDIGITS + 3];
michael@0:   //We start filling at the buffer end
michael@0:   char *suffix = expbuf + MAXEDIGITS + 2;
michael@0:   *suffix = 0;
michael@0:   if (!is_zero) {
michael@0:     int nn = decpt - 1;
michael@0:     if (nn < 0)
michael@0:       nn = -nn;
michael@0:     for (; nn > 9; nn /= 10)
michael@0:       *--suffix = (char) todigit(nn % 10);
michael@0:     *--suffix = (char) todigit(nn);
michael@0:   }
michael@0: 
michael@0:   // prepend leading zeros to exponent
michael@0:   // C89 Standard says that it should be at least 2 digits, C99 Standard says that
michael@0:   // we stop prepend zeros if more than 3 digits. To repect both STLport prepend zeros
michael@0:   // until it is 2 digits.
michael@0:   while (suffix > &expbuf[MAXEDIGITS])
michael@0:     *--suffix = '0';
michael@0: 
michael@0:   // put in the exponent sign
michael@0:   *--suffix = (char) ((decpt > 0 || is_zero ) ? '+' : '-');
michael@0: 
michael@0:   // put in the e
michael@0:   *--suffix = flags & ios_base::uppercase ? 'E' : 'e';
michael@0: 
michael@0:   // copy the suffix
michael@0:   buf += suffix;
michael@0:   return __group_pos;
michael@0: }
michael@0: 
michael@0: static size_t __format_float_fixed( __iostring &buf, const char *bp,
michael@0:                                     int decpt, int sign,
michael@0:                                     ios_base::fmtflags flags,
michael@0:                                     int precision) {
michael@0:   if ( sign && (decpt > -precision) && (*bp != 0) )
michael@0:     buf += '-';
michael@0:   else if ( flags & ios_base::showpos )
michael@0:     buf += '+';
michael@0: 
michael@0:   // digits before decimal point
michael@0:   int nnn = decpt;
michael@0:   do {
michael@0:     buf += (nnn <= 0 || *bp == 0) ? '0' : *bp++;
michael@0:   } while ( --nnn > 0 );
michael@0: 
michael@0:   // start of grouping position
michael@0:   size_t __group_pos = buf.size();
michael@0: 
michael@0:   // decimal point if needed
michael@0:   if ( flags & ios_base::showpoint || precision > 0 ) {
michael@0:     buf += '.';
michael@0:   }
michael@0: 
michael@0:   // digits after decimal point if any
michael@0:   while ( *bp != 0 && --precision >= 0 ) {
michael@0:     buf += (++decpt <= 0) ? '0' : *bp++;
michael@0:   }
michael@0: 
michael@0:   // trailing zeros if needed
michael@0:   if (precision > 0)
michael@0:     buf.append(precision, '0');
michael@0: 
michael@0:   return __group_pos;
michael@0: }
michael@0: 
michael@0: #if defined (_STLP_USE_SIGN_HELPER)
michael@0: template<class _FloatT>
michael@0: struct float_sign_helper {
michael@0:   float_sign_helper(_FloatT __x)
michael@0:   { _M_number._num = __x; }
michael@0: 
michael@0:   bool is_negative() const {
michael@0:     const unsigned short sign_mask(1 << (sizeof(unsigned short) * CHAR_BIT - 1));
michael@0:     return (get_sign_word() & sign_mask) != 0;
michael@0:   }
michael@0: private:
michael@0:   union {
michael@0:     unsigned short _Words[8];
michael@0:     _FloatT _num;
michael@0:   } _M_number;
michael@0: 
michael@0:   unsigned short get_word_higher() const _STLP_NOTHROW
michael@0:   { return _M_number._Words[0]; }
michael@0:   unsigned short get_word_lower() const _STLP_NOTHROW
michael@0:   { return _M_number._Words[(sizeof(_FloatT) >= 12 ? 10 : sizeof(_FloatT)) / sizeof(unsigned short) - 1]; }
michael@0:   unsigned short get_sign_word() const _STLP_NOTHROW
michael@0: #  if defined (_STLP_BIG_ENDIAN)
michael@0:   { return get_word_higher(); }
michael@0: #  else /* _STLP_LITTLE_ENDIAN */
michael@0:   { return get_word_lower(); }
michael@0: #  endif
michael@0: };
michael@0: #endif
michael@0: 
michael@0: template <class _FloatT>
michael@0: static size_t __format_nan_or_inf(__iostring& buf, _FloatT x, ios_base::fmtflags flags) {
michael@0:   static const char* inf[2] = { "inf", "Inf" };
michael@0:   static const char* nan[2] = { "nan", "NaN" };
michael@0:   const char** inf_or_nan;
michael@0: #if !defined (_STLP_USE_SIGN_HELPER)
michael@0:   if (_Stl_is_inf(x)) {            // Infinity
michael@0:     inf_or_nan = inf;
michael@0:     if (_Stl_is_neg_inf(x))
michael@0:       buf += '-';
michael@0:     else if (flags & ios_base::showpos)
michael@0:       buf += '+';
michael@0:   } else {                      // NaN
michael@0:     inf_or_nan = nan;
michael@0:     if (_Stl_is_neg_nan(x))
michael@0:       buf += '-';
michael@0:     else if (flags & ios_base::showpos)
michael@0:       buf += '+';
michael@0:   }
michael@0: #else
michael@0:   typedef numeric_limits<_FloatT> limits;
michael@0:   if (x == limits::infinity() || x == -limits::infinity()) {
michael@0:     inf_or_nan = inf;
michael@0:   } else {                    // NaN
michael@0:     inf_or_nan = nan;
michael@0:   }
michael@0:   float_sign_helper<_FloatT> helper(x);
michael@0:   if (helper.is_negative())
michael@0:     buf += '-';
michael@0:   else if (flags & ios_base::showpos)
michael@0:     buf += '+';
michael@0: #endif
michael@0:   size_t ret = buf.size();
michael@0:   buf += inf_or_nan[flags & ios_base::uppercase ? 1 : 0];
michael@0:   return ret;
michael@0: }
michael@0: 
michael@0: static inline size_t __format_float(__iostring &buf, const char * bp,
michael@0:                                     int decpt, int sign, bool is_zero,
michael@0:                                     ios_base::fmtflags flags,
michael@0:                                     int precision) {
michael@0:   size_t __group_pos = 0;
michael@0:   switch (flags & ios_base::floatfield) {
michael@0:     case ios_base::scientific:
michael@0:       __group_pos = __format_float_scientific( buf, bp, decpt, sign, is_zero,
michael@0:                                                flags, precision);
michael@0:       break;
michael@0:     case ios_base::fixed:
michael@0:       __group_pos = __format_float_fixed( buf, bp, decpt, sign,
michael@0:                                           flags, precision);
michael@0:       break;
michael@0:     default: // g format
michael@0:       // establish default precision
michael@0:       if (flags & ios_base::showpoint || precision > 0) {
michael@0:         if (precision == 0) precision = 1;
michael@0:       } else
michael@0:         precision = 6;
michael@0: 
michael@0:       // reset exponent if value is zero
michael@0:       if (is_zero)
michael@0:         decpt = 1;
michael@0: 
michael@0:       int kk = precision;
michael@0:       if (!(flags & ios_base::showpoint)) {
michael@0:         size_t n = strlen(bp);
michael@0:         if (n < (size_t)kk)
michael@0:           kk = (int)n;
michael@0:         while (kk >= 1 && bp[kk-1] == '0')
michael@0:           --kk;
michael@0:       }
michael@0: 
michael@0:       if (decpt < -3 || decpt > precision) {
michael@0:         precision = kk - 1;
michael@0:         __group_pos = __format_float_scientific( buf, bp, decpt, sign, is_zero,
michael@0:                                                  flags, precision);
michael@0:       } else {
michael@0:         precision = kk - decpt;
michael@0:         __group_pos = __format_float_fixed( buf, bp, decpt, sign,
michael@0:                                             flags, precision);
michael@0:       }
michael@0:       break;
michael@0:   } /* switch */
michael@0:   return __group_pos;
michael@0: }
michael@0: 
michael@0: #endif
michael@0: 
michael@0: #if defined (USE_SPRINTF_INSTEAD) || defined (_STLP_EMULATE_LONG_DOUBLE_CVT)
michael@0: struct GroupPos {
michael@0:   bool operator () (char __c) const {
michael@0:     return __c == '.' ||
michael@0:            __c == 'e' || __c == 'E';
michael@0:   }
michael@0: };
michael@0: 
michael@0: // Creates a format string for sprintf()
michael@0: static void __fill_fmtbuf(char* fmtbuf, ios_base::fmtflags flags, char long_modifier) {
michael@0:   fmtbuf[0] = '%';
michael@0:   int i = 1;
michael@0: 
michael@0:   if (flags & ios_base::showpos)
michael@0:     fmtbuf[i++] = '+';
michael@0: 
michael@0:   if (flags & ios_base::showpoint)
michael@0:     fmtbuf[i++] = '#';
michael@0: 
michael@0:   fmtbuf[i++] = '.';
michael@0:   fmtbuf[i++] = '*';
michael@0: 
michael@0:   if (long_modifier)
michael@0:     fmtbuf[i++] = long_modifier;
michael@0: 
michael@0:   switch (flags & ios_base::floatfield)
michael@0:     {
michael@0:     case ios_base::scientific:
michael@0:       fmtbuf[i++] = (flags & ios_base::uppercase) ?  'E' : 'e';
michael@0:       break;
michael@0:     case ios_base::fixed:
michael@0: #  if defined (__FreeBSD__)
michael@0:       fmtbuf[i++] = 'f';
michael@0: #  else
michael@0:       fmtbuf[i++] = (flags & ios_base::uppercase) ? 'F' : 'f';
michael@0: #  endif
michael@0:       break;
michael@0:     default:
michael@0:       fmtbuf[i++] = (flags & ios_base::uppercase) ?  'G' : 'g';
michael@0:       break;
michael@0:     }
michael@0: 
michael@0:   fmtbuf[i] = 0;
michael@0: }
michael@0: 
michael@0: #endif  /* USE_SPRINTF_INSTEAD */
michael@0: 
michael@0: template <class _FloatT>
michael@0: static size_t  __write_floatT(__iostring &buf, ios_base::fmtflags flags, int precision,
michael@0:                               _FloatT x
michael@0: #if defined (USE_SPRINTF_INSTEAD)
michael@0:                               , char modifier) {
michael@0:   /* In theory, if we want 'arbitrary' precision, we should use 'arbitrary'
michael@0:    * buffer size below, but really we limited by exponent part in double.
michael@0:    *    - ptr
michael@0:    */
michael@0:   typedef numeric_limits<_FloatT> limits;
michael@0:   char static_buf[limits::max_exponent10 + 6]; // 6: -xxx.yyyE-zzz (sign, dot, E, exp sign, \0)
michael@0:   char fmtbuf[32];
michael@0:   __fill_fmtbuf(fmtbuf, flags, modifier);
michael@0:   snprintf(_STLP_ARRAY_AND_SIZE(static_buf), fmtbuf, precision, x);
michael@0:   buf = static_buf;
michael@0:   return find_if(buf.begin(), buf.end(), GroupPos()) - buf.begin();
michael@0: #else
michael@0:                               ) {
michael@0:   typedef numeric_limits<_FloatT> limits;
michael@0:   //If numeric_limits support is correct we use the exposed values to detect NaN and infinity:
michael@0:   if (limits::has_infinity && limits::has_quiet_NaN) {
michael@0:     if (!(x == x) || // NaN check
michael@0:         (x == limits::infinity() || x == -limits::infinity())) {
michael@0:       return __format_nan_or_inf(buf, x, flags);
michael@0:     }
michael@0:   }
michael@0:   // numeric_limits support is not good enough, we rely on platform dependent function
michael@0:   // _Stl_is_nan_or_inf that do not support long double.
michael@0:   else if (_Stl_is_nan_or_inf(x)) {
michael@0:     return __format_nan_or_inf(buf, x, flags);
michael@0:   }
michael@0: #  if defined (__MINGW32__)
michael@0:   //For the moment MinGW is limited to display at most numeric_limits<double>::max()
michael@0:   if (x > numeric_limits<double>::max() ||
michael@0:       x < -numeric_limits<double>::max()) {
michael@0:     return __format_nan_or_inf(buf, x, flags);
michael@0:   }
michael@0: #  endif
michael@0: 
michael@0:   /* Buffer size is max number of digits which is the addition of:
michael@0:    * - max_exponent10: max number of digits in fixed mode
michael@0:    * - digits10 + 2: max number of significant digits
michael@0:    * - trailing '\0'
michael@0:    */
michael@0:   char cvtbuf[limits::max_exponent10 + limits::digits10 + 2 + 1];
michael@0:   char *bp;
michael@0:   int decpt, sign;
michael@0: 
michael@0:   switch (flags & ios_base::floatfield) {
michael@0:   case ios_base::fixed:
michael@0:     {
michael@0:       /* Here, number of digits represents digits _after_ decimal point.
michael@0:        * In order to limit static buffer size we have to give 2 different values depending on x value. 
michael@0:        * For small values (abs(x) < 1) we need as many digits as requested by precision limited by the maximum number of digits
michael@0:        * which is min_exponent10 + digits10 + 2
michael@0:        * For bigger values we won't have more than limits::digits10 + 2 digits after decimal point. */
michael@0:       int digits10 = (x > -1.0 && x < 1.0 ? -limits::min_exponent10 + limits::digits10 + 2
michael@0:                                           : limits::digits10 + 2);
michael@0:       bp = _Stl_fcvtR(x, (min) (precision, digits10), &decpt, &sign, _STLP_CVT_BUFFER(cvtbuf) );
michael@0:     }
michael@0:     break;
michael@0:   case ios_base::scientific:
michael@0:   default:
michael@0:     /* Here, number of digits is total number of digits which is limited to digits10 + 2. */
michael@0:     {
michael@0:       int digits10 = limits::digits10 + 2;
michael@0:       bp = _Stl_ecvtR(x, (min) (precision, digits10), &decpt, &sign, _STLP_CVT_BUFFER(cvtbuf) );
michael@0:     }
michael@0:     break;
michael@0:   }
michael@0:   return __format_float(buf, bp, decpt, sign, x == 0.0, flags, precision);
michael@0: #endif
michael@0: }
michael@0: 
michael@0: size_t  _STLP_CALL
michael@0: __write_float(__iostring &buf, ios_base::fmtflags flags, int precision,
michael@0:               double x) {
michael@0:   return __write_floatT(buf, flags, precision, x
michael@0: #if defined (USE_SPRINTF_INSTEAD)
michael@0:                                                , 0
michael@0: #endif
michael@0:                                                   );
michael@0: }
michael@0: 
michael@0: #if !defined (_STLP_NO_LONG_DOUBLE)
michael@0: size_t _STLP_CALL
michael@0: __write_float(__iostring &buf, ios_base::fmtflags flags, int precision,
michael@0:               long double x) {
michael@0:   return __write_floatT(buf, flags, precision, x
michael@0: #if defined (USE_SPRINTF_INSTEAD)
michael@0:                                                , 'L'
michael@0: #endif
michael@0:                                                     );
michael@0: }
michael@0: #endif
michael@0: 
michael@0: void _STLP_CALL __get_floor_digits(__iostring &out, _STLP_LONGEST_FLOAT_TYPE __x) {
michael@0:   typedef numeric_limits<_STLP_LONGEST_FLOAT_TYPE> limits;
michael@0: #if defined (USE_SPRINTF_INSTEAD)
michael@0:   char cvtbuf[limits::max_exponent10 + 6];
michael@0: #  if !defined (_STLP_NO_LONG_DOUBLE)
michael@0:   snprintf(_STLP_ARRAY_AND_SIZE(cvtbuf), "%Lf", __x); // check for 1234.56!
michael@0: #  else
michael@0:   snprintf(_STLP_ARRAY_AND_SIZE(cvtbuf), "%f", __x);  // check for 1234.56!
michael@0: #  endif
michael@0:   char *p = strchr( cvtbuf, '.' );
michael@0:   if ( p == 0 ) {
michael@0:     out.append( cvtbuf );
michael@0:   } else {
michael@0:     out.append( cvtbuf, p );
michael@0:   }
michael@0: #else
michael@0:   char cvtbuf[limits::max_exponent10 + 1];
michael@0:   char * bp;
michael@0:   int decpt, sign;
michael@0:   bp = _Stl_fcvtR(__x, 0, &decpt, &sign, _STLP_CVT_BUFFER(cvtbuf));
michael@0: 
michael@0:   if (sign) {
michael@0:     out += '-';
michael@0:   }
michael@0:   out.append(bp, bp + decpt);
michael@0: #endif
michael@0: }
michael@0: 
michael@0: 
michael@0: #if !defined (_STLP_NO_WCHAR_T)
michael@0: void _STLP_CALL __convert_float_buffer( __iostring const& str, __iowstring &out,
michael@0:                                         const ctype<wchar_t>& ct, wchar_t dot, bool __check_dot) {
michael@0:   string::const_iterator str_ite(str.begin()), str_end(str.end());
michael@0: 
michael@0:   //First loop, check the dot char
michael@0:   if (__check_dot) {
michael@0:     while (str_ite != str_end) {
michael@0:       if (*str_ite != '.') {
michael@0:         out += ct.widen(*str_ite++);
michael@0:       } else {
michael@0:         out += dot;
michael@0:         break;
michael@0:       }
michael@0:     }
michael@0:   } else {
michael@0:     if (str_ite != str_end) {
michael@0:       out += ct.widen(*str_ite);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   if (str_ite != str_end) {
michael@0:     //Second loop, dot has been found, no check anymore
michael@0:     while (++str_ite != str_end) {
michael@0:       out += ct.widen(*str_ite);
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: #endif
michael@0: 
michael@0: void _STLP_CALL
michael@0: __adjust_float_buffer(__iostring &str, char dot) {
michael@0:   if ('.' != dot) {
michael@0:     size_t __dot_pos = str.find('.');
michael@0:     if (__dot_pos != string::npos) {
michael@0:       str[__dot_pos] = dot;
michael@0:     }
michael@0:   }
michael@0: }
michael@0: 
michael@0: _STLP_MOVE_TO_STD_NAMESPACE
michael@0: _STLP_END_NAMESPACE
michael@0: 
michael@0: // Local Variables:
michael@0: // mode:C++
michael@0: // End: