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https://github.com/capstone-engine/llvm-capstone.git
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e0cf3b9a3c
One of the aspects of CloudABI is that it aims to help you write code that is thread-safe out of the box. This is very important if you want to write libraries that are easy to reuse. For CloudABI we decided to not provide the thread-unsafe functions. So far this is working out pretty well, as thread-unsafety issues are detected really early on. The following patch adds a knob to libc++, _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS, that can be set to disable thread-unsafe functions that can easily be avoided in practice. The following functions are not thread-safe: - <clocale>: locale handles should be preferred over setlocale(). - <cstdlib>: mbrlen(), mbrtowc() and wcrtomb() should be preferred over their non-restartable counterparts. - <ctime>: asctime(), ctime(), gmtime() and localtime() are not thread-safe. The first two are also deprecated by POSIX. Differential Revision: http://reviews.llvm.org/D8703 Reviewed by: marshall llvm-svn: 240527
85 lines
3.7 KiB
C++
85 lines
3.7 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 <stdlib.h>
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#include <stdlib.h>
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#include <type_traits>
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#ifndef EXIT_FAILURE
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#error EXIT_FAILURE not defined
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#endif
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#ifndef EXIT_SUCCESS
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#error EXIT_SUCCESS not defined
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#endif
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#ifndef MB_CUR_MAX
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#error MB_CUR_MAX not defined
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#endif
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#ifndef NULL
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#error NULL not defined
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#endif
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#ifndef RAND_MAX
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#error RAND_MAX not defined
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#endif
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int main()
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{
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size_t s = 0;
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div_t d;
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ldiv_t ld;
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lldiv_t lld;
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char** endptr = 0;
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static_assert((std::is_same<decltype(atof("")), double>::value), "");
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static_assert((std::is_same<decltype(atoi("")), int>::value), "");
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static_assert((std::is_same<decltype(atol("")), long>::value), "");
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static_assert((std::is_same<decltype(atoll("")), long long>::value), "");
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static_assert((std::is_same<decltype(getenv("")), char*>::value), "");
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static_assert((std::is_same<decltype(strtod("", endptr)), double>::value), "");
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static_assert((std::is_same<decltype(strtof("", endptr)), float>::value), "");
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static_assert((std::is_same<decltype(strtold("", endptr)), long double>::value), "");
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static_assert((std::is_same<decltype(strtol("", endptr,0)), long>::value), "");
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static_assert((std::is_same<decltype(strtoll("", endptr,0)), long long>::value), "");
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static_assert((std::is_same<decltype(strtoul("", endptr,0)), unsigned long>::value), "");
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static_assert((std::is_same<decltype(strtoull("", endptr,0)), unsigned long long>::value), "");
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static_assert((std::is_same<decltype(rand()), int>::value), "");
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static_assert((std::is_same<decltype(srand(0)), void>::value), "");
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static_assert((std::is_same<decltype(calloc(0,0)), void*>::value), "");
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static_assert((std::is_same<decltype(free(0)), void>::value), "");
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static_assert((std::is_same<decltype(malloc(0)), void*>::value), "");
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static_assert((std::is_same<decltype(realloc(0,0)), void*>::value), "");
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static_assert((std::is_same<decltype(abort()), void>::value), "");
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static_assert((std::is_same<decltype(atexit(0)), int>::value), "");
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static_assert((std::is_same<decltype(exit(0)), void>::value), "");
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static_assert((std::is_same<decltype(_Exit(0)), void>::value), "");
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static_assert((std::is_same<decltype(getenv("")), char*>::value), "");
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static_assert((std::is_same<decltype(system("")), int>::value), "");
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static_assert((std::is_same<decltype(bsearch(0,0,0,0,0)), void*>::value), "");
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static_assert((std::is_same<decltype(qsort(0,0,0,0)), void>::value), "");
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static_assert((std::is_same<decltype(abs(0)), int>::value), "");
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static_assert((std::is_same<decltype(labs((long)0)), long>::value), "");
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static_assert((std::is_same<decltype(llabs((long long)0)), long long>::value), "");
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static_assert((std::is_same<decltype(div(0,0)), div_t>::value), "");
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static_assert((std::is_same<decltype(ldiv(0L,0L)), ldiv_t>::value), "");
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static_assert((std::is_same<decltype(lldiv(0LL,0LL)), lldiv_t>::value), "");
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wchar_t* pw = 0;
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const wchar_t* pwc = 0;
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char* pc = 0;
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#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
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static_assert((std::is_same<decltype(mblen("",0)), int>::value), "");
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static_assert((std::is_same<decltype(mbtowc(pw,"",0)), int>::value), "");
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static_assert((std::is_same<decltype(wctomb(pc,L' ')), int>::value), "");
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#endif
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static_assert((std::is_same<decltype(mbstowcs(pw,"",0)), size_t>::value), "");
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static_assert((std::is_same<decltype(wcstombs(pc,pwc,0)), size_t>::value), "");
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}
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