Void cast runtime-unused variables. Patch from STL@microsoft.com
llvm-svn: 268284
This commit is contained in:
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9d91336a83
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fb42f4c44a
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@ -19,6 +19,7 @@
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int main()
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{
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jmp_buf jb;
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((void)jb); // Prevent unused warning
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static_assert((std::is_same<decltype(longjmp(jb, 0)), void>::value),
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"std::is_same<decltype(longjmp(jb, 0)), void>::value");
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}
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@ -108,10 +108,16 @@ int main()
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{
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FILE* fp = 0;
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fpos_t fpos = {0};
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size_t s = 0; ((void)s);
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size_t s = 0;
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char* cp = 0;
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char arr[] = {'a', 'b'};
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va_list va;
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((void)fp); // Prevent unused warning
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((void)fpos); // Prevent unused warning
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((void)s); // Prevent unused warning
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((void)cp); // Prevent unused warning
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((void)arr); // Prevent unused warning
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((void)va); // Prevent unused warning
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static_assert((std::is_same<decltype(remove("")), int>::value), "");
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static_assert((std::is_same<decltype(rename("","")), int>::value), "");
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static_assert((std::is_same<decltype(tmpfile()), FILE*>::value), "");
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@ -91,6 +91,11 @@ int main()
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std::size_t s = 0;
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char* cp = 0;
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std::va_list va;
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((void)fp); // Prevent unused warning
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((void)fpos); // Prevent unused warning
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((void)s); // Prevent unused warning
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((void)cp); // Prevent unused warning
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((void)va); // Prevent unused warning
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static_assert((std::is_same<decltype(std::fclose(fp)), int>::value), "");
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static_assert((std::is_same<decltype(std::fflush(fp)), int>::value), "");
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static_assert((std::is_same<decltype(std::setbuf(fp,cp)), void>::value), "");
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@ -56,7 +56,7 @@ void test_hex(const char *expected)
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assert(str == expected);
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}
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int main(int argc, char* argv[])
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int main()
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{
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test_octal<uint16_t>( "177777");
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@ -17,6 +17,7 @@
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int main()
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{
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std::bidirectional_iterator_tag tag;
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((void)tag); // Prevent unused warning
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static_assert((std::is_base_of<std::forward_iterator_tag,
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std::bidirectional_iterator_tag>::value), "");
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static_assert((!std::is_base_of<std::output_iterator_tag,
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@ -17,6 +17,7 @@
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int main()
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{
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std::forward_iterator_tag tag;
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((void)tag); // Prevent unused warning
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static_assert((std::is_base_of<std::input_iterator_tag,
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std::forward_iterator_tag>::value), "");
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static_assert((!std::is_base_of<std::output_iterator_tag,
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@ -17,6 +17,7 @@
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int main()
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{
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std::input_iterator_tag tag;
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((void)tag); // Prevent unused warning
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static_assert((!std::is_base_of<std::output_iterator_tag,
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std::input_iterator_tag>::value), "");
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}
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@ -17,6 +17,7 @@
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int main()
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{
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std::output_iterator_tag tag;
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((void)tag); // Prevent unused warning
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static_assert((!std::is_base_of<std::input_iterator_tag,
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std::output_iterator_tag>::value), "");
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}
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@ -17,6 +17,7 @@
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int main()
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{
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std::random_access_iterator_tag tag;
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((void)tag); // Prevent unused warning
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static_assert((std::is_base_of<std::bidirectional_iterator_tag,
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std::random_access_iterator_tag>::value), "");
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static_assert((!std::is_base_of<std::output_iterator_tag,
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@ -112,7 +112,7 @@ int main()
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std::throw_with_nested(Final());
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assert(false);
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}
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catch (const Final &f)
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catch (const Final &)
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{
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}
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}
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@ -74,7 +74,7 @@ int main()
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throw A();
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assert(false);
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}
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catch (A& a)
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catch (A&)
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{
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std::exception_ptr p = std::current_exception();
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assert(A::constructed == 1);
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@ -94,7 +94,7 @@ int main()
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throw A();
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assert(false);
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}
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catch (A a)
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catch (A)
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{
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std::exception_ptr p = std::current_exception();
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assert(A::constructed == 2);
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@ -19,6 +19,7 @@
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int main()
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{
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std::jmp_buf jb;
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((void)jb); // Prevent unused warning
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static_assert((std::is_same<decltype(std::longjmp(jb, 0)), void>::value),
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"std::is_same<decltype(std::longjmp(jb, 0)), void>::value");
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}
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@ -23,10 +23,13 @@
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int main()
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{
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std::clock_t c = 0;
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((void)c);
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std::size_t s = 0;
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std::time_t t = 0;
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std::tm tm = {0};
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((void)c); // Prevent unused warning
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((void)s); // Prevent unused warning
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((void)t); // Prevent unused warning
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((void)tm); // Prevent unused warning
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static_assert((std::is_same<decltype(std::clock()), std::clock_t>::value), "");
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static_assert((std::is_same<decltype(std::difftime(t,t)), double>::value), "");
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static_assert((std::is_same<decltype(std::mktime(&tm)), std::time_t>::value), "");
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@ -39,5 +42,7 @@ int main()
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#endif
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char* c1 = 0;
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const char* c2 = 0;
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((void)c1); // Prevent unused warning
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((void)c2); // Prevent unused warning
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static_assert((std::is_same<decltype(std::strftime(c1,s,c2,&tm)), std::size_t>::value), "");
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}
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@ -47,6 +47,7 @@
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int main()
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{
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std::lconv lc;
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((void)lc); // Prevent unused warning
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#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
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static_assert((std::is_same<decltype(std::setlocale(0, "")), char*>::value), "");
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#endif
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@ -24415,7 +24415,6 @@ void test11()
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void test12()
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{
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char str[200];
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output_iterator<char*> iter;
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std::locale lc = std::locale::classic();
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std::locale lg(lc, new my_numpunct);
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@ -24423,6 +24422,7 @@ void test12()
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// This test is failing on FreeBSD, possibly due to different representations
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// of the floating point numbers.
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const my_facet f(1);
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char str[200];
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{
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long double v = 1234567890.125;
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std::ios ios(0);
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@ -26221,7 +26221,6 @@ int main()
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test10();
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test11();
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test12();
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char str[200];
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output_iterator<char*> iter;
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std::locale lc = std::locale::classic();
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std::locale lg(lc, new my_numpunct);
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@ -62,6 +62,8 @@ int main()
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{
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std::fenv_t fenv;
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std::fexcept_t fex;
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((void)fenv); // Prevent unused warning
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((void)fex); // Prevent unused warning
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static_assert((std::is_same<decltype(std::feclearexcept(0)), int>::value), "");
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static_assert((std::is_same<decltype(std::fegetexceptflag(&fex, 0)), int>::value), "");
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static_assert((std::is_same<decltype(std::feraiseexcept(0)), int>::value), "");
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@ -30,7 +30,7 @@ int main()
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r();
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assert(false);
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}
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catch (const std::system_error& e)
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catch (const std::system_error&)
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{
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}
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}
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@ -35,7 +35,7 @@ extern "C" void LLVMFuzzerTestOneInput(const char *data)
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std::regex re(s, flag);
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std::regex_match(s, re);
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}
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catch (std::regex_error &ex) {}
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catch (std::regex_error &) {}
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}
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}
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@ -40,6 +40,16 @@ int main()
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char* ns = 0;
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wchar_t* ws = 0;
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((void)mb); // Prevent unused warning
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((void)s); // Prevent unused warning
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((void)tm); // Prevent unused warning
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((void)w); // Prevent unused warning
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((void)fp); // Prevent unused warning
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((void)va); // Prevent unused warning
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((void)ns); // Prevent unused warning
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((void)ws); // Prevent unused warning
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static_assert((std::is_same<decltype(std::fwprintf(fp, L"")), int>::value), "");
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static_assert((std::is_same<decltype(std::fwscanf(fp, L"")), int>::value), "");
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static_assert((std::is_same<decltype(std::swprintf(ws, s, L"")), int>::value), "");
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@ -37,7 +37,10 @@ void test_pointer()
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{
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typename std::allocator_traits<Alloc>::pointer vp;
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typename std::allocator_traits<Alloc>::const_pointer cvp;
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((void)vp); // Prevent unused warning
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((void)cvp); // Prevent unused warning
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static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
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{
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typename std::allocator_traits<Alloc>::void_pointer vp;
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typename std::allocator_traits<Alloc>::const_void_pointer cvp;
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((void)vp); // Prevent unused warning
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((void)cvp); // Prevent unused warning
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static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
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@ -36,7 +36,10 @@ void test_pointer()
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{
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typename std::allocator_traits<Alloc>::pointer vp;
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typename std::allocator_traits<Alloc>::const_pointer cvp;
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((void)vp); // Prevent unused warning
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((void)cvp); // Prevent unused warning
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static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
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{
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typename std::allocator_traits<Alloc>::void_pointer vp;
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typename std::allocator_traits<Alloc>::const_void_pointer cvp;
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((void)vp); // Prevent unused warning
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((void)cvp); // Prevent unused warning
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static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
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static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
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@ -21,11 +21,15 @@
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int main()
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{
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std::clock_t c = 0;
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((void)c); // avoid unused warning
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std::size_t s = 0;
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std::time_t t = 0;
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std::tm tm = {0};
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char str[3];
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((void)c); // Prevent unused warning
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((void)s); // Prevent unused warning
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((void)t); // Prevent unused warning
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((void)tm); // Prevent unused warning
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((void)str); // Prevent unused warning
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static_assert((std::is_same<decltype(std::clock()), std::clock_t>::value), "");
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static_assert((std::is_same<decltype(std::difftime(t,t)), double>::value), "");
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static_assert((std::is_same<decltype(std::mktime(&tm)), std::time_t>::value), "");
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@ -39,6 +39,9 @@ int main()
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A a;
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const A ca = A();
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((void)a); // Prevent unused warning
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((void)ca); // Prevent unused warning
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#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
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static_assert(sizeof(test(std::forward<A&>(a))) == 1, "");
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static_assert(sizeof(test(std::forward<A>(a))) == 4, "");
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