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 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-

  * vim: set ts=8 sts=4 et sw=4 tw=99:

  * This Source Code Form is subject to the terms of the Mozilla Public

  * License, v. 2.0. If a copy of the MPL was not distributed with this

  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

 #ifndef jsprf_h

 #define jsprf_h

 /*

 ** API for PR printf like routines. Supports the following formats

 **      %d - decimal

 **      %u - unsigned decimal

 **      %x - unsigned hex

 **      %X - unsigned uppercase hex

 **      %o - unsigned octal

 **      %hd, %hu, %hx, %hX, %ho - 16-bit versions of above

 **      %ld, %lu, %lx, %lX, %lo - 32-bit versions of above

 **      %lld, %llu, %llx, %llX, %llo - 64 bit versions of above

 **      %s - ascii string

 **      %hs - ucs2 string

 **      %c - character

 **      %p - pointer (deals with machine dependent pointer size)

 **      %f - float

 **      %g - float

 */

 #include <stdarg.h>

 #include "jstypes.h"

 /*

 ** sprintf into a fixed size buffer. Guarantees that a NUL is at the end

 ** of the buffer. Returns the length of the written output, NOT including

 ** the NUL, or (uint32_t)-1 if an error occurs.

 */

 extern JS_PUBLIC_API(uint32_t) JS_snprintf(char *out, uint32_t outlen, const char *fmt, ...);

 /*

 ** sprintf into a malloc'd buffer. Return a pointer to the malloc'd

 ** buffer on success, nullptr on failure. Call "JS_smprintf_free" to release

 ** the memory returned.

 */

 extern JS_PUBLIC_API(char*) JS_smprintf(const char *fmt, ...);

 /*

 ** Free the memory allocated, for the caller, by JS_smprintf

 */

 extern JS_PUBLIC_API(void) JS_smprintf_free(char *mem);

 /*

 ** "append" sprintf into a malloc'd buffer. "last" is the last value of

 ** the malloc'd buffer. sprintf will append data to the end of last,

 ** growing it as necessary using realloc. If last is nullptr, JS_sprintf_append

 ** will allocate the initial string. The return value is the new value of

 ** last for subsequent calls, or nullptr if there is a malloc failure.

 */

 extern JS_PUBLIC_API(char*) JS_sprintf_append(char *last, const char *fmt, ...);

 /*

 ** va_list forms of the above.

 */

 extern JS_PUBLIC_API(uint32_t) JS_vsnprintf(char *out, uint32_t outlen, const char *fmt, va_list ap);

 extern JS_PUBLIC_API(char*) JS_vsmprintf(const char *fmt, va_list ap);

 extern JS_PUBLIC_API(char*) JS_vsprintf_append(char *last, const char *fmt, va_list ap);

 #endif /* jsprf_h */