1 //===-- Definition of 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_HDR_MATH_MACROS_H 10 #define LLVM_LIBC_HDR_MATH_MACROS_H 11 12 #ifdef LIBC_FULL_BUILD 13 14 #include "include/llvm-libc-macros/math-macros.h" 15 16 #else // Overlay mode 17 18 // GCC will include CXX headers when __cplusplus is defined. This behavior 19 // can be suppressed by defining _GLIBCXX_INCLUDE_NEXT_C_HEADERS. 20 #if defined(__GNUC__) && !defined(__clang__) 21 #define _GLIBCXX_INCLUDE_NEXT_C_HEADERS 22 #endif 23 #include <math.h> 24 25 // Some older math.h header does not have FP_INT_* constants yet. 26 #ifndef FP_INT_UPWARD 27 #define FP_INT_UPWARD 0 28 #endif // FP_INT_UPWARD 29 30 #ifndef FP_INT_DOWNWARD 31 #define FP_INT_DOWNWARD 1 32 #endif // FP_INT_DOWNWARD 33 34 #ifndef FP_INT_TOWARDZERO 35 #define FP_INT_TOWARDZERO 2 36 #endif // FP_INT_TOWARDZERO 37 38 #ifndef FP_INT_TONEARESTFROMZERO 39 #define FP_INT_TONEARESTFROMZERO 3 40 #endif // FP_INT_TONEARESTFROMZERO 41 42 #ifndef FP_INT_TONEAREST 43 #define FP_INT_TONEAREST 4 44 #endif // FP_INT_TONEAREST 45 46 #endif // LLVM_LIBC_FULL_BUILD 47 48 #endif // LLVM_LIBC_HDR_MATH_MACROS_H 49