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dc38e97601
Summary: Major QoI considerations: - The facility is backported to C++14, same as libstdc++. - Efforts have been made to minimize the header dependencies. - The design is friendly to the uses of MSVC intrinsics (`__emulu`, `_umul128`, `_BitScanForward`, `_BitScanForward64`) but not implemented; future contributions are welcome. Thanks to Milo Yip for contributing the implementation of `__u64toa` and `__u32toa`. References: https://wg21.link/p0067r5 https://wg21.link/p0682r1 Reviewers: mclow.lists, EricWF Reviewed By: mclow.lists Subscribers: ldionne, Quuxplusone, christof, mgorny, cfe-commits Differential Revision: https://reviews.llvm.org/D41458 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@338479 91177308-0d34-0410-b5e6-96231b3b80d8
81 lines
1.9 KiB
C++
81 lines
1.9 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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// UNSUPPORTED: c++98, c++03, c++11
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// <charconv>
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// to_chars_result to_chars(char* first, char* last, Integral value,
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// int base = 10)
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#include "charconv_test_helpers.h"
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template <typename T>
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struct test_basics : to_chars_test_base<T>
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{
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using to_chars_test_base<T>::test;
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using to_chars_test_base<T>::test_value;
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void operator()()
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{
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test(0, "0");
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test(42, "42");
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test(32768, "32768");
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test(0, "0", 10);
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test(42, "42", 10);
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test(32768, "32768", 10);
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test(0xf, "f", 16);
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test(0xdeadbeaf, "deadbeaf", 16);
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test(0755, "755", 8);
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for (int b = 2; b < 37; ++b)
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{
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using xl = std::numeric_limits<T>;
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test_value(1, b);
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test_value(xl::lowest(), b);
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test_value((xl::max)(), b);
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test_value((xl::max)() / 2, b);
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}
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}
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};
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template <typename T>
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struct test_signed : to_chars_test_base<T>
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{
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using to_chars_test_base<T>::test;
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using to_chars_test_base<T>::test_value;
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void operator()()
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{
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test(-1, "-1");
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test(-12, "-12");
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test(-1, "-1", 10);
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test(-12, "-12", 10);
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test(-21734634, "-21734634", 10);
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test(-2647, "-101001010111", 2);
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test(-0xcc1, "-cc1", 16);
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for (int b = 2; b < 37; ++b)
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{
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using xl = std::numeric_limits<T>;
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test_value(0, b);
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test_value(xl::lowest(), b);
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test_value((xl::max)(), b);
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}
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}
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};
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int
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main()
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{
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run<test_basics>(integrals);
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run<test_signed>(all_signed);
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}
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