stdlib/tst-strtod.h

   1 /* Common utilities for testing strtod and its derivatives.
   2    This file is part of the GNU C Library.
   3    Copyright (C) 2016-2017 Free Software Foundation, Inc.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _TST_STRTOD_H
  20 #define _TST_STRTOD_H
  21
  22 #define FSTRLENMAX 128
  23
  24 #include <bits/floatn.h>
  25
  26 #define F128 __f128 ()
  27
  28 /* Test strfromf128 and strtof128 on all platforms that provide them,
  29    whether or not the type _Float128 is ABI-distinct from long double.  */
  30 #if __HAVE_FLOAT128
  31 # define IF_FLOAT128(x) x
  32 #else
  33 # define IF_FLOAT128(x)
  34 #endif
  35
  36 /* Splat n variants of the same test for the various strtod functions.  */
  37 #define GEN_TEST_STRTOD_FOREACH(mfunc, ...)                                   \
  38   mfunc (  f,       float, strfromf, f, f, ##__VA_ARGS__)                     \
  39   mfunc (  d,      double, strfromd,  ,  , ##__VA_ARGS__)                     \
  40   mfunc ( ld, long double, strfroml, L, l, ##__VA_ARGS__)                     \
  41   IF_FLOAT128 (mfunc (f128, _Float128, strfromf128, F128, f128, ##__VA_ARGS__))
  42 /* The arguments to the generated macros are:
  43    FSUF - Function suffix
  44    FTYPE - float type
  45    FTOSTR - float to string func
  46    LSUF - Literal suffix
  47    CSUF - C standardish suffix for many of the math functions
  48 */
  49
  50
  51
  52 #define STRTOD_TEST_FOREACH(mfunc, ...)                 \
  53 ({                                                      \
  54    int result = 0;                                      \
  55    result |= mfunc ## f  (__VA_ARGS__);                 \
  56    result |= mfunc ## d  (__VA_ARGS__);                 \
  57    result |= mfunc ## ld (__VA_ARGS__);                 \
  58    IF_FLOAT128 (result |= mfunc ## f128 (__VA_ARGS__)); \
  59    result;                                              \
  60 })
  61
  62
  63 #endif