libc/include/llvm-libc-macros/math-function-macros.h

   1 //===-- Definition of function macros from math.h -------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef LLVM_LIBC_MACROS_MATH_FUNCTION_MACROS_H
  10 #define LLVM_LIBC_MACROS_MATH_FUNCTION_MACROS_H
  11
  12 #include "math-macros.h"
  13
  14 #ifndef __cplusplus
  15 #define issignaling(x)                                                         \
  16   _Generic((x),                                                                \
  17       float: issignalingf,                                                     \
  18       double: issignaling,                                                     \
  19       long double: issignalingl)(x)
  20 #define iscanonical(x)                                                         \
  21   _Generic((x),                                                                \
  22       float: iscanonicalf,                                                     \
  23       double: iscanonical,                                                     \
  24       long double: iscanonicall)(x)
  25 #endif
  26
  27 #define isfinite(x) __builtin_isfinite(x)
  28 #define isinf(x) __builtin_isinf(x)
  29 #define isnan(x) __builtin_isnan(x)
  30 #define signbit(x) __builtin_signbit(x)
  31 #define iszero(x) (x == 0)
  32 #define fpclassify(x)                                                          \
  33   __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, x)
  34 #define isnormal(x) __builtin_isnormal(x)
  35 #define issubnormal(x) (fpclassify(x) == FP_SUBNORMAL)
  36
  37 #endif // LLVM_LIBC_MACROS_MATH_FUNCTION_MACROS_H