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Summary: If the implementation supports floating-point infinities, the macro INFINITY expands to constant expression of type float which evaluates to positive or unsigned infinity. Currently this is a double, this makes it a float.
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
//===-- Definition of macros from math.h ----------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_LIBC_MACROS_MATH_MACROS_H
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#define LLVM_LIBC_MACROS_MATH_MACROS_H
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#include "limits-macros.h"
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#define FP_NAN 0
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#define FP_INFINITE 1
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#define FP_ZERO 2
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#define FP_SUBNORMAL 3
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#define FP_NORMAL 4
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#define FP_INT_UPWARD 0
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#define FP_INT_DOWNWARD 1
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#define FP_INT_TOWARDZERO 2
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#define FP_INT_TONEARESTFROMZERO 3
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#define FP_INT_TONEAREST 4
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#define MATH_ERRNO 1
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#define MATH_ERREXCEPT 2
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#define HUGE_VAL __builtin_huge_val()
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#define HUGE_VALF __builtin_huge_valf()
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#define INFINITY __builtin_inff()
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#define NAN __builtin_nanf("")
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#define FP_ILOGB0 (-INT_MAX - 1)
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#define FP_LLOGB0 (-LONG_MAX - 1)
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#ifdef __FP_LOGBNAN_MIN
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#define FP_ILOGBNAN (-INT_MAX - 1)
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#define FP_LLOGBNAN (-LONG_MAX - 1)
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#else
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#define FP_ILOGBNAN INT_MAX
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#define FP_LLOGBNAN LONG_MAX
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#endif
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#if defined(__NVPTX__) || defined(__AMDGPU__) || defined(__FAST_MATH__)
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#define math_errhandling 0
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#elif defined(__NO_MATH_ERRNO__)
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#define math_errhandling (MATH_ERREXCEPT)
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#else
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#define math_errhandling (MATH_ERRNO | MATH_ERREXCEPT)
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#endif
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#endif // LLVM_LIBC_MACROS_MATH_MACROS_H
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