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| 1 /*===---- float.h - Characteristics of floating point types ----------------=== |
| 2 * |
| 3 * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 4 * of this software and associated documentation files (the "Software"), to deal |
| 5 * in the Software without restriction, including without limitation the rights |
| 6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 7 * copies of the Software, and to permit persons to whom the Software is |
| 8 * furnished to do so, subject to the following conditions: |
| 9 * |
| 10 * The above copyright notice and this permission notice shall be included in |
| 11 * all copies or substantial portions of the Software. |
| 12 * |
| 13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| 19 * THE SOFTWARE. |
| 20 * |
| 21 *===-----------------------------------------------------------------------=== |
| 22 */ |
| 23 |
| 24 #ifndef __FLOAT_H |
| 25 #define __FLOAT_H |
| 26 |
| 27 /* If we're on MinGW, fall back to the system's float.h, which might have |
| 28 * additional definitions provided for Windows. |
| 29 * For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx |
| 30 */ |
| 31 #if defined(__MINGW32__) && \ |
| 32 defined(__has_include_next) && __has_include_next(<float.h>) |
| 33 # include_next <float.h> |
| 34 |
| 35 /* Undefine anything that we'll be redefining below. */ |
| 36 # undef FLT_EVAL_METHOD |
| 37 # undef FLT_ROUNDS |
| 38 # undef FLT_RADIX |
| 39 # undef FLT_MANT_DIG |
| 40 # undef DBL_MANT_DIG |
| 41 # undef LDBL_MANT_DIG |
| 42 # undef DECIMAL_DIG |
| 43 # undef FLT_DIG |
| 44 # undef DBL_DIG |
| 45 # undef LDBL_DIG |
| 46 # undef FLT_MIN_EXP |
| 47 # undef DBL_MIN_EXP |
| 48 # undef LDBL_MIN_EXP |
| 49 # undef FLT_MIN_10_EXP |
| 50 # undef DBL_MIN_10_EXP |
| 51 # undef LDBL_MIN_10_EXP |
| 52 # undef FLT_MAX_EXP |
| 53 # undef DBL_MAX_EXP |
| 54 # undef LDBL_MAX_EXP |
| 55 # undef FLT_MAX_10_EXP |
| 56 # undef DBL_MAX_10_EXP |
| 57 # undef LDBL_MAX_10_EXP |
| 58 # undef FLT_MAX |
| 59 # undef DBL_MAX |
| 60 # undef LDBL_MAX |
| 61 # undef FLT_EPSILON |
| 62 # undef DBL_EPSILON |
| 63 # undef LDBL_EPSILON |
| 64 # undef FLT_MIN |
| 65 # undef DBL_MIN |
| 66 # undef LDBL_MIN |
| 67 #endif |
| 68 |
| 69 /* Characteristics of floating point types, C99 5.2.4.2.2 */ |
| 70 |
| 71 #define FLT_EVAL_METHOD __FLT_EVAL_METHOD__ |
| 72 #define FLT_ROUNDS (__builtin_flt_rounds()) |
| 73 #define FLT_RADIX __FLT_RADIX__ |
| 74 |
| 75 #define FLT_MANT_DIG __FLT_MANT_DIG__ |
| 76 #define DBL_MANT_DIG __DBL_MANT_DIG__ |
| 77 #define LDBL_MANT_DIG __LDBL_MANT_DIG__ |
| 78 |
| 79 #define DECIMAL_DIG __DECIMAL_DIG__ |
| 80 |
| 81 #define FLT_DIG __FLT_DIG__ |
| 82 #define DBL_DIG __DBL_DIG__ |
| 83 #define LDBL_DIG __LDBL_DIG__ |
| 84 |
| 85 #define FLT_MIN_EXP __FLT_MIN_EXP__ |
| 86 #define DBL_MIN_EXP __DBL_MIN_EXP__ |
| 87 #define LDBL_MIN_EXP __LDBL_MIN_EXP__ |
| 88 |
| 89 #define FLT_MIN_10_EXP __FLT_MIN_10_EXP__ |
| 90 #define DBL_MIN_10_EXP __DBL_MIN_10_EXP__ |
| 91 #define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__ |
| 92 |
| 93 #define FLT_MAX_EXP __FLT_MAX_EXP__ |
| 94 #define DBL_MAX_EXP __DBL_MAX_EXP__ |
| 95 #define LDBL_MAX_EXP __LDBL_MAX_EXP__ |
| 96 |
| 97 #define FLT_MAX_10_EXP __FLT_MAX_10_EXP__ |
| 98 #define DBL_MAX_10_EXP __DBL_MAX_10_EXP__ |
| 99 #define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__ |
| 100 |
| 101 #define FLT_MAX __FLT_MAX__ |
| 102 #define DBL_MAX __DBL_MAX__ |
| 103 #define LDBL_MAX __LDBL_MAX__ |
| 104 |
| 105 #define FLT_EPSILON __FLT_EPSILON__ |
| 106 #define DBL_EPSILON __DBL_EPSILON__ |
| 107 #define LDBL_EPSILON __LDBL_EPSILON__ |
| 108 |
| 109 #define FLT_MIN __FLT_MIN__ |
| 110 #define DBL_MIN __DBL_MIN__ |
| 111 #define LDBL_MIN __LDBL_MIN__ |
| 112 |
| 113 #endif /* __FLOAT_H */ |
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