michael@0: // Copyright 2010 the V8 project authors. All rights reserved.
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: //       notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: //       copyright notice, this list of conditions and the following
michael@0: //       disclaimer in the documentation and/or other materials provided
michael@0: //       with the distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: //       contributors may be used to endorse or promote products derived
michael@0: //       from this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: #ifndef DOUBLE_CONVERSION_FIXED_DTOA_H_
michael@0: #define DOUBLE_CONVERSION_FIXED_DTOA_H_
michael@0: 
michael@0: #include "utils.h"
michael@0: 
michael@0: namespace double_conversion {
michael@0: 
michael@0: // Produces digits necessary to print a given number with
michael@0: // 'fractional_count' digits after the decimal point.
michael@0: // The buffer must be big enough to hold the result plus one terminating null
michael@0: // character.
michael@0: //
michael@0: // The produced digits might be too short in which case the caller has to fill
michael@0: // the gaps with '0's.
michael@0: // Example: FastFixedDtoa(0.001, 5, ...) is allowed to return buffer = "1", and
michael@0: // decimal_point = -2.
michael@0: // Halfway cases are rounded towards +/-Infinity (away from 0). The call
michael@0: // FastFixedDtoa(0.15, 2, ...) thus returns buffer = "2", decimal_point = 0.
michael@0: // The returned buffer may contain digits that would be truncated from the
michael@0: // shortest representation of the input.
michael@0: //
michael@0: // This method only works for some parameters. If it can't handle the input it
michael@0: // returns false. The output is null-terminated when the function succeeds.
michael@0: bool FastFixedDtoa(double v, int fractional_count,
michael@0:                    Vector<char> buffer, int* length, int* decimal_point);
michael@0: 
michael@0: }  // namespace double_conversion
michael@0: 
michael@0: #endif  // DOUBLE_CONVERSION_FIXED_DTOA_H_