b64f8b07c1
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
84 lines
4.0 KiB
C++
84 lines
4.0 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// test numeric_limits
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// The default numeric_limits<T> template shall have all members, but with
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// 0 or false values.
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#include <limits>
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#include <cassert>
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struct A
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{
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A(int i = 0) : data_(i) {}
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int data_;
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};
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bool operator == (const A& x, const A& y) {return x.data_ == y.data_;}
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int main()
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{
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static_assert(std::numeric_limits<A>::is_specialized == false,
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"std::numeric_limits<A>::is_specialized == false");
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assert(std::numeric_limits<A>::min() == A());
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assert(std::numeric_limits<A>::max() == A());
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assert(std::numeric_limits<A>::lowest() == A());
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static_assert(std::numeric_limits<A>::digits == 0,
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"std::numeric_limits<A>::digits == 0");
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static_assert(std::numeric_limits<A>::digits10 == 0,
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"std::numeric_limits<A>::digits10 == 0");
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static_assert(std::numeric_limits<A>::max_digits10 == 0,
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"std::numeric_limits<A>::max_digits10 == 0");
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static_assert(std::numeric_limits<A>::is_signed == false,
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"std::numeric_limits<A>::is_signed == false");
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static_assert(std::numeric_limits<A>::is_integer == false,
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"std::numeric_limits<A>::is_integer == false");
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static_assert(std::numeric_limits<A>::is_exact == false,
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"std::numeric_limits<A>::is_exact == false");
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static_assert(std::numeric_limits<A>::radix == 0,
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"std::numeric_limits<A>::radix == 0");
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assert(std::numeric_limits<A>::epsilon() == A());
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assert(std::numeric_limits<A>::round_error() == A());
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static_assert(std::numeric_limits<A>::min_exponent == 0,
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"std::numeric_limits<A>::min_exponent == 0");
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static_assert(std::numeric_limits<A>::min_exponent10 == 0,
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"std::numeric_limits<A>::min_exponent10 == 0");
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static_assert(std::numeric_limits<A>::max_exponent == 0,
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"std::numeric_limits<A>::max_exponent == 0");
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static_assert(std::numeric_limits<A>::max_exponent10 == 0,
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"std::numeric_limits<A>::max_exponent10 == 0");
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static_assert(std::numeric_limits<A>::has_infinity == false,
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"std::numeric_limits<A>::has_infinity == false");
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static_assert(std::numeric_limits<A>::has_quiet_NaN == false,
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"std::numeric_limits<A>::has_quiet_NaN == false");
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static_assert(std::numeric_limits<A>::has_signaling_NaN == false,
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"std::numeric_limits<A>::has_signaling_NaN == false");
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static_assert(std::numeric_limits<A>::has_denorm == std::denorm_absent,
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"std::numeric_limits<A>::has_denorm == std::denorm_absent");
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static_assert(std::numeric_limits<A>::has_denorm_loss == false,
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"std::numeric_limits<A>::has_denorm_loss == false");
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assert(std::numeric_limits<A>::infinity() == A());
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assert(std::numeric_limits<A>::quiet_NaN() == A());
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assert(std::numeric_limits<A>::signaling_NaN() == A());
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assert(std::numeric_limits<A>::denorm_min() == A());
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static_assert(std::numeric_limits<A>::is_iec559 == false,
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"std::numeric_limits<A>::is_iec559 == false");
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static_assert(std::numeric_limits<A>::is_bounded == false,
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"std::numeric_limits<A>::is_bounded == false");
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static_assert(std::numeric_limits<A>::is_modulo == false,
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"std::numeric_limits<A>::is_modulo == false");
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static_assert(std::numeric_limits<A>::traps == false,
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"std::numeric_limits<A>::traps == false");
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static_assert(std::numeric_limits<A>::tinyness_before == false,
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"std::numeric_limits<A>::tinyness_before == false");
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static_assert(std::numeric_limits<A>::round_style == std::round_toward_zero,
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"std::numeric_limits<A>::round_style == std::round_toward_zero");
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}
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