501645cbeb
The existence of <float.h> in libc++ leads to difficulties with modules, especially when it comes to supporting the various __need macros supported by the Clang builtin headers. Fortunately, libc++'s <float.h> only defines FLT_EVAL_METHOD and DECIMAL_DIG, which are already defined by the Clang builtin headers in C++11 mode. Hence, removing the header entirely should have no impact, apart from not defining FLT_EVAL_METHOD and DECIMAL_DIG in C++03 mode. However, that is arguably something that libc++ shouldn't be doing: if the underlying C library doesn't want to provide these definitions, then libc++ shouldn't force it to.
190 lines
3.0 KiB
C++
190 lines
3.0 KiB
C++
//===----------------------------------------------------------------------===//
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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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// test <cfloat>
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#include <cfloat>
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#include "test_macros.h"
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#ifndef FLT_ROUNDS
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#error FLT_ROUNDS not defined
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#endif
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#if TEST_STD_VER >= 11
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#ifndef FLT_EVAL_METHOD
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#error FLT_EVAL_METHOD not defined
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#endif
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#endif
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#ifndef FLT_RADIX
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#error FLT_RADIX not defined
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#endif
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#if TEST_STD_VER > 14
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#ifndef FLT_HAS_SUBNORM
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#error FLT_HAS_SUBNORM not defined
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#endif
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#ifndef DBL_HAS_SUBNORM
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#error DBL_HAS_SUBNORM not defined
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#endif
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#ifndef LDBL_HAS_SUBNORM
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#error LDBL_HAS_SUBNORM not defined
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#endif
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#endif
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#ifndef FLT_MANT_DIG
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#error FLT_MANT_DIG not defined
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#endif
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#ifndef DBL_MANT_DIG
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#error DBL_MANT_DIG not defined
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#endif
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#ifndef LDBL_MANT_DIG
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#error LDBL_MANT_DIG not defined
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#endif
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#if TEST_STD_VER >= 11
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#ifndef DECIMAL_DIG
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#error DECIMAL_DIG not defined
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#endif
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#endif
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#if TEST_STD_VER > 14
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#ifndef FLT_DECIMAL_DIG
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#error FLT_DECIMAL_DIG not defined
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#endif
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#ifndef DBL_DECIMAL_DIG
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#error DBL_DECIMAL_DIG not defined
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#endif
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#ifndef LDBL_DECIMAL_DIG
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#error LDBL_DECIMAL_DIG not defined
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#endif
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#endif
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#ifndef FLT_DIG
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#error FLT_DIG not defined
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#endif
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#ifndef DBL_DIG
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#error DBL_DIG not defined
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#endif
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#ifndef LDBL_DIG
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#error LDBL_DIG not defined
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#endif
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#ifndef FLT_MIN_EXP
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#error FLT_MIN_EXP not defined
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#endif
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#ifndef DBL_MIN_EXP
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#error DBL_MIN_EXP not defined
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#endif
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#ifndef LDBL_MIN_EXP
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#error LDBL_MIN_EXP not defined
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#endif
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#ifndef FLT_MIN_10_EXP
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#error FLT_MIN_10_EXP not defined
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#endif
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#ifndef DBL_MIN_10_EXP
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#error DBL_MIN_10_EXP not defined
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#endif
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#ifndef LDBL_MIN_10_EXP
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#error LDBL_MIN_10_EXP not defined
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#endif
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#ifndef FLT_MAX_EXP
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#error FLT_MAX_EXP not defined
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#endif
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#ifndef DBL_MAX_EXP
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#error DBL_MAX_EXP not defined
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#endif
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#ifndef LDBL_MAX_EXP
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#error LDBL_MAX_EXP not defined
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#endif
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#ifndef FLT_MAX_10_EXP
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#error FLT_MAX_10_EXP not defined
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#endif
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#ifndef DBL_MAX_10_EXP
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#error DBL_MAX_10_EXP not defined
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#endif
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#ifndef LDBL_MAX_10_EXP
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#error LDBL_MAX_10_EXP not defined
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#endif
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#ifndef FLT_MAX
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#error FLT_MAX not defined
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#endif
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#ifndef DBL_MAX
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#error DBL_MAX not defined
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#endif
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#ifndef LDBL_MAX
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#error LDBL_MAX not defined
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#endif
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#ifndef FLT_EPSILON
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#error FLT_EPSILON not defined
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#endif
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#ifndef DBL_EPSILON
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#error DBL_EPSILON not defined
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#endif
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#ifndef LDBL_EPSILON
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#error LDBL_EPSILON not defined
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#endif
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#ifndef FLT_MIN
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#error FLT_MIN not defined
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#endif
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#ifndef DBL_MIN
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#error DBL_MIN not defined
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#endif
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#ifndef LDBL_MIN
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#error LDBL_MIN not defined
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#endif
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#if TEST_STD_VER > 14
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#ifndef FLT_TRUE_MIN
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#error FLT_TRUE_MIN not defined
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#endif
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#ifndef DBL_TRUE_MIN
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#error DBL_TRUE_MIN not defined
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#endif
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#ifndef LDBL_TRUE_MIN
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#error LDBL_TRUE_MIN not defined
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#endif
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#endif
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int main(int, char**)
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{
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return 0;
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}
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