base/third_party/dmg_fp/dmg_fp.h

   1 // Copyright (c) 2008 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef THIRD_PARTY_DMG_FP_H_
   6 #define THIRD_PARTY_DMG_FP_H_
   7
   8 namespace dmg_fp {
   9
  10 // Return a nearest machine number to the input decimal
  11 // string (or set errno to ERANGE). With IEEE arithmetic, ties are
  12 // broken by the IEEE round-even rule.  Otherwise ties are broken by
  13 // biased rounding (add half and chop).
  14 double strtod(const char* s00, char** se);
  15
  16 // Convert double to ASCII string. For meaning of parameters
  17 // see dtoa.cc file.
  18 char* dtoa(double d, int mode, int ndigits,
  19            int* decpt, int* sign, char** rve);
  20
  21 // Must be used to free values returned by dtoa.
  22 void freedtoa(char* s);
  23
  24 // Store the closest decimal approximation to x in b (null terminated).
  25 // Returns a pointer to b.  It is sufficient for |b| to be 32 characters.
  26 char* g_fmt(char* b, double x);
  27
  28 }  // namespace dmg_fp
  29
  30 #endif  // THIRD_PARTY_DMG_FP_H_