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Diffstat (limited to 'clang/lib/Headers/float.h')
-rw-r--r--clang/lib/Headers/float.h180
1 files changed, 16 insertions, 164 deletions
diff --git a/clang/lib/Headers/float.h b/clang/lib/Headers/float.h
index 30427c2..82974f6 100644
--- a/clang/lib/Headers/float.h
+++ b/clang/lib/Headers/float.h
@@ -7,13 +7,21 @@
*===-----------------------------------------------------------------------===
*/
-#ifndef __CLANG_FLOAT_H
-#define __CLANG_FLOAT_H
-
#if defined(__MVS__) && __has_include_next(<float.h>)
+#include <__float_header_macro.h>
#include_next <float.h>
#else
+#if !defined(__need_infinity_nan)
+#define __need_float_float
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \
+ !defined(__STRICT_ANSI__)
+#define __need_infinity_nan
+#endif
+#include <__float_header_macro.h>
+#endif
+
+#ifdef __need_float_float
/* If we're on MinGW, fall back to the system's float.h, which might have
* additional definitions provided for Windows.
* For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx
@@ -26,171 +34,15 @@
# include_next <float.h>
-/* Undefine anything that we'll be redefining below. */
-# undef FLT_EVAL_METHOD
-# undef FLT_ROUNDS
-# undef FLT_RADIX
-# undef FLT_MANT_DIG
-# undef DBL_MANT_DIG
-# undef LDBL_MANT_DIG
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
- !defined(__STRICT_ANSI__) || \
- (defined(__cplusplus) && __cplusplus >= 201103L) || \
- (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE))
-# undef DECIMAL_DIG
-# endif
-# undef FLT_DIG
-# undef DBL_DIG
-# undef LDBL_DIG
-# undef FLT_MIN_EXP
-# undef DBL_MIN_EXP
-# undef LDBL_MIN_EXP
-# undef FLT_MIN_10_EXP
-# undef DBL_MIN_10_EXP
-# undef LDBL_MIN_10_EXP
-# undef FLT_MAX_EXP
-# undef DBL_MAX_EXP
-# undef LDBL_MAX_EXP
-# undef FLT_MAX_10_EXP
-# undef DBL_MAX_10_EXP
-# undef LDBL_MAX_10_EXP
-# undef FLT_MAX
-# undef DBL_MAX
-# undef LDBL_MAX
-# undef FLT_EPSILON
-# undef DBL_EPSILON
-# undef LDBL_EPSILON
-# undef FLT_MIN
-# undef DBL_MIN
-# undef LDBL_MIN
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
- !defined(__STRICT_ANSI__) || \
- (defined(__cplusplus) && __cplusplus >= 201703L) || \
- (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE))
-# undef FLT_TRUE_MIN
-# undef DBL_TRUE_MIN
-# undef LDBL_TRUE_MIN
-# undef FLT_DECIMAL_DIG
-# undef DBL_DECIMAL_DIG
-# undef LDBL_DECIMAL_DIG
-# undef FLT_HAS_SUBNORM
-# undef DBL_HAS_SUBNORM
-# undef LDBL_HAS_SUBNORM
-# endif
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \
- !defined(__STRICT_ANSI__)
-# undef FLT_NORM_MAX
-# undef DBL_NORM_MAX
-# undef LDBL_NORM_MAX
-#endif
-#endif
-
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \
- !defined(__STRICT_ANSI__)
-# undef INFINITY
-# undef NAN
-# undef FLT_SNAN
-# undef DBL_SNAN
-# undef LDBL_SNAN
-#endif
-
-/* Characteristics of floating point types, C99 5.2.4.2.2 */
-
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
- (defined(__cplusplus) && __cplusplus >= 201103L)
-#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
#endif
-#define FLT_ROUNDS (__builtin_flt_rounds())
-#define FLT_RADIX __FLT_RADIX__
-#define FLT_MANT_DIG __FLT_MANT_DIG__
-#define DBL_MANT_DIG __DBL_MANT_DIG__
-#define LDBL_MANT_DIG __LDBL_MANT_DIG__
-
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
- !defined(__STRICT_ANSI__) || \
- (defined(__cplusplus) && __cplusplus >= 201103L) || \
- (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE))
-# define DECIMAL_DIG __DECIMAL_DIG__
-#endif
-
-#define FLT_DIG __FLT_DIG__
-#define DBL_DIG __DBL_DIG__
-#define LDBL_DIG __LDBL_DIG__
-
-#define FLT_MIN_EXP __FLT_MIN_EXP__
-#define DBL_MIN_EXP __DBL_MIN_EXP__
-#define LDBL_MIN_EXP __LDBL_MIN_EXP__
-
-#define FLT_MIN_10_EXP __FLT_MIN_10_EXP__
-#define DBL_MIN_10_EXP __DBL_MIN_10_EXP__
-#define LDBL_MIN_10_EXP __LDBL_MIN_10_EXP__
-
-#define FLT_MAX_EXP __FLT_MAX_EXP__
-#define DBL_MAX_EXP __DBL_MAX_EXP__
-#define LDBL_MAX_EXP __LDBL_MAX_EXP__
-
-#define FLT_MAX_10_EXP __FLT_MAX_10_EXP__
-#define DBL_MAX_10_EXP __DBL_MAX_10_EXP__
-#define LDBL_MAX_10_EXP __LDBL_MAX_10_EXP__
-
-#define FLT_MAX __FLT_MAX__
-#define DBL_MAX __DBL_MAX__
-#define LDBL_MAX __LDBL_MAX__
-
-#define FLT_EPSILON __FLT_EPSILON__
-#define DBL_EPSILON __DBL_EPSILON__
-#define LDBL_EPSILON __LDBL_EPSILON__
-
-#define FLT_MIN __FLT_MIN__
-#define DBL_MIN __DBL_MIN__
-#define LDBL_MIN __LDBL_MIN__
-
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || \
- !defined(__STRICT_ANSI__) || \
- (defined(__cplusplus) && __cplusplus >= 201703L) || \
- (__STDC_HOSTED__ && defined(_AIX) && defined(_ALL_SOURCE))
-# define FLT_TRUE_MIN __FLT_DENORM_MIN__
-# define DBL_TRUE_MIN __DBL_DENORM_MIN__
-# define LDBL_TRUE_MIN __LDBL_DENORM_MIN__
-# define FLT_DECIMAL_DIG __FLT_DECIMAL_DIG__
-# define DBL_DECIMAL_DIG __DBL_DECIMAL_DIG__
-# define LDBL_DECIMAL_DIG __LDBL_DECIMAL_DIG__
-# define FLT_HAS_SUBNORM __FLT_HAS_DENORM__
-# define DBL_HAS_SUBNORM __DBL_HAS_DENORM__
-# define LDBL_HAS_SUBNORM __LDBL_HAS_DENORM__
+#include <__float_float.h>
+#undef __need_float_float
#endif
-#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 202311L) || \
- !defined(__STRICT_ANSI__)
- /* C23 5.2.5.3.2p28 */
-# define FLT_SNAN (__builtin_nansf(""))
-# define DBL_SNAN (__builtin_nans(""))
-# define LDBL_SNAN (__builtin_nansl(""))
-
- /* C23 5.2.5.3.3p29-30 */
-# define INFINITY (__builtin_inff())
-# define NAN (__builtin_nanf(""))
-
- /* C23 5.2.5.3.3p32 */
-# define FLT_NORM_MAX __FLT_NORM_MAX__
-# define DBL_NORM_MAX __DBL_NORM_MAX__
-# define LDBL_NORM_MAX __LDBL_NORM_MAX__
+#ifdef __need_infinity_nan
+#include <__float_infinity_nan.h>
+#undef __need_infinity_nan
#endif
-#ifdef __STDC_WANT_IEC_60559_TYPES_EXT__
-# define FLT16_MANT_DIG __FLT16_MANT_DIG__
-# define FLT16_DECIMAL_DIG __FLT16_DECIMAL_DIG__
-# define FLT16_DIG __FLT16_DIG__
-# define FLT16_MIN_EXP __FLT16_MIN_EXP__
-# define FLT16_MIN_10_EXP __FLT16_MIN_10_EXP__
-# define FLT16_MAX_EXP __FLT16_MAX_EXP__
-# define FLT16_MAX_10_EXP __FLT16_MAX_10_EXP__
-# define FLT16_MAX __FLT16_MAX__
-# define FLT16_EPSILON __FLT16_EPSILON__
-# define FLT16_MIN __FLT16_MIN__
-# define FLT16_TRUE_MIN __FLT16_TRUE_MIN__
-#endif /* __STDC_WANT_IEC_60559_TYPES_EXT__ */
-
#endif /* __MVS__ */
-#endif /* __CLANG_FLOAT_H */
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