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Void cast runtime-unused variables. Patch from STL@microsoft.com 

llvm-svn: 268284
This commit is contained in:
Eric Fiselier 2016-05-02 19:15:48 +00:00
parent 9d91336a83
commit fb42f4c44a
23 changed files with 69 additions and 15 deletions
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1
libcxx/test/std/depr/depr.c.headers/setjmp_h.pass.cpp
View File

@ -19,6 +19,7 @@
int main()
{
jmp_buf jb;
((void)jb); // Prevent unused warning
static_assert((std::is_same<decltype(longjmp(jb, 0)), void>::value),
"std::is_same<decltype(longjmp(jb, 0)), void>::value");
}

8
libcxx/test/std/depr/depr.c.headers/stdio_h.pass.cpp
View File

@ -108,10 +108,16 @@ int main()
{
FILE* fp = 0;
fpos_t fpos = {0};
size_t s = 0; ((void)s);
size_t s = 0;
char* cp = 0;
char arr[] = {'a', 'b'};
va_list va;
((void)fp); // Prevent unused warning
((void)fpos); // Prevent unused warning
((void)s); // Prevent unused warning
((void)cp); // Prevent unused warning
((void)arr); // Prevent unused warning
((void)va); // Prevent unused warning
static_assert((std::is_same<decltype(remove("")), int>::value), "");
static_assert((std::is_same<decltype(rename("","")), int>::value), "");
static_assert((std::is_same<decltype(tmpfile()), FILE*>::value), "");

5
libcxx/test/std/input.output/file.streams/c.files/cstdio.pass.cpp
View File

@ -91,6 +91,11 @@ int main()
std::size_t s = 0;
char* cp = 0;
std::va_list va;
((void)fp); // Prevent unused warning
((void)fpos); // Prevent unused warning
((void)s); // Prevent unused warning
((void)cp); // Prevent unused warning
((void)va); // Prevent unused warning
static_assert((std::is_same<decltype(std::fclose(fp)), int>::value), "");
static_assert((std::is_same<decltype(std::fflush(fp)), int>::value), "");
static_assert((std::is_same<decltype(std::setbuf(fp,cp)), void>::value), "");

2
libcxx/test/std/input.output/iostream.format/output.streams/ostream.formatted/ostream.inserters.arithmetic/minus1.pass.cpp
View File

@ -56,7 +56,7 @@ void test_hex(const char *expected)
assert(str == expected);
}
int main(int argc, char* argv[])
int main()
{
test_octal<uint16_t>( "177777");

1
libcxx/test/std/iterators/iterator.primitives/std.iterator.tags/bidirectional_iterator_tag.pass.cpp
View File

@ -17,6 +17,7 @@
int main()
{
std::bidirectional_iterator_tag tag;
((void)tag); // Prevent unused warning
static_assert((std::is_base_of<std::forward_iterator_tag,
std::bidirectional_iterator_tag>::value), "");
static_assert((!std::is_base_of<std::output_iterator_tag,

1
libcxx/test/std/iterators/iterator.primitives/std.iterator.tags/forward_iterator_tag.pass.cpp
View File

@ -17,6 +17,7 @@
int main()
{
std::forward_iterator_tag tag;
((void)tag); // Prevent unused warning
static_assert((std::is_base_of<std::input_iterator_tag,
std::forward_iterator_tag>::value), "");
static_assert((!std::is_base_of<std::output_iterator_tag,

1
libcxx/test/std/iterators/iterator.primitives/std.iterator.tags/input_iterator_tag.pass.cpp
View File

@ -17,6 +17,7 @@
int main()
{
std::input_iterator_tag tag;
((void)tag); // Prevent unused warning
static_assert((!std::is_base_of<std::output_iterator_tag,
std::input_iterator_tag>::value), "");
}

1
libcxx/test/std/iterators/iterator.primitives/std.iterator.tags/output_iterator_tag.pass.cpp
View File

@ -17,6 +17,7 @@
int main()
{
std::output_iterator_tag tag;
((void)tag); // Prevent unused warning
static_assert((!std::is_base_of<std::input_iterator_tag,
std::output_iterator_tag>::value), "");
}

1
libcxx/test/std/iterators/iterator.primitives/std.iterator.tags/random_access_iterator_tag.pass.cpp
View File

@ -17,6 +17,7 @@
int main()
{
std::random_access_iterator_tag tag;
((void)tag); // Prevent unused warning
static_assert((std::is_base_of<std::bidirectional_iterator_tag,
std::random_access_iterator_tag>::value), "");
static_assert((!std::is_base_of<std::output_iterator_tag,

2
libcxx/test/std/language.support/support.exception/except.nested/throw_with_nested.pass.cpp
View File

@ -112,7 +112,7 @@ int main()
std::throw_with_nested(Final());
assert(false);
}
catch (const Final &f)
catch (const Final &)
{
}
}

4
libcxx/test/std/language.support/support.exception/propagation/current_exception.pass.cpp
View File

@ -74,7 +74,7 @@ int main()
throw A();
assert(false);
}
catch (A& a)
catch (A&)
{
std::exception_ptr p = std::current_exception();
assert(A::constructed == 1);
@ -94,7 +94,7 @@ int main()
throw A();
assert(false);
}
catch (A a)
catch (A)
{
std::exception_ptr p = std::current_exception();
assert(A::constructed == 2);

1
libcxx/test/std/language.support/support.runtime/csetjmp.pass.cpp
View File

@ -19,6 +19,7 @@
int main()
{
std::jmp_buf jb;
((void)jb); // Prevent unused warning
static_assert((std::is_same<decltype(std::longjmp(jb, 0)), void>::value),
"std::is_same<decltype(std::longjmp(jb, 0)), void>::value");
}

7
libcxx/test/std/language.support/support.runtime/ctime.pass.cpp
View File

@ -23,10 +23,13 @@
int main()
{
std::clock_t c = 0;
((void)c);
std::size_t s = 0;
std::time_t t = 0;
std::tm tm = {0};
((void)c); // Prevent unused warning
((void)s); // Prevent unused warning
((void)t); // Prevent unused warning
((void)tm); // Prevent unused warning
static_assert((std::is_same<decltype(std::clock()), std::clock_t>::value), "");
static_assert((std::is_same<decltype(std::difftime(t,t)), double>::value), "");
static_assert((std::is_same<decltype(std::mktime(&tm)), std::time_t>::value), "");
@ -39,5 +42,7 @@ int main()
#endif
char* c1 = 0;
const char* c2 = 0;
((void)c1); // Prevent unused warning
((void)c2); // Prevent unused warning
static_assert((std::is_same<decltype(std::strftime(c1,s,c2,&tm)), std::size_t>::value), "");
}

1
libcxx/test/std/localization/c.locales/clocale.pass.cpp
View File

@ -47,6 +47,7 @@
int main()
{
std::lconv lc;
((void)lc); // Prevent unused warning
#ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
static_assert((std::is_same<decltype(std::setlocale(0, "")), char*>::value), "");
#endif

3
libcxx/test/std/localization/locale.categories/category.numeric/locale.nm.put/facet.num.put.members/put_long_double.pass.cpp
View File

@ -24415,7 +24415,6 @@ void test11()
void test12()
{
char str[200];
output_iterator<char*> iter;
std::locale lc = std::locale::classic();
std::locale lg(lc, new my_numpunct);
@ -24423,6 +24422,7 @@ void test12()
// This test is failing on FreeBSD, possibly due to different representations
// of the floating point numbers.
const my_facet f(1);
char str[200];
{
long double v = 1234567890.125;
std::ios ios(0);
@ -26221,7 +26221,6 @@ int main()
test10();
test11();
test12();
char str[200];
output_iterator<char*> iter;
std::locale lc = std::locale::classic();
std::locale lg(lc, new my_numpunct);

2
libcxx/test/std/numerics/cfenv/cfenv.syn/cfenv.pass.cpp
View File

@ -62,6 +62,8 @@ int main()
{
std::fenv_t fenv;
std::fexcept_t fex;
((void)fenv); // Prevent unused warning
((void)fex); // Prevent unused warning
static_assert((std::is_same<decltype(std::feclearexcept(0)), int>::value), "");
static_assert((std::is_same<decltype(std::fegetexceptflag(&fex, 0)), int>::value), "");
static_assert((std::is_same<decltype(std::feraiseexcept(0)), int>::value), "");

2
libcxx/test/std/numerics/rand/rand.device/eval.pass.cpp
View File

@ -30,7 +30,7 @@ int main()
r();
assert(false);
}
catch (const std::system_error& e)
catch (const std::system_error&)
{
}
}

2
libcxx/test/std/re/re.alg/re.alg.search/grep.pass.cpp
View File

@ -35,7 +35,7 @@ extern "C" void LLVMFuzzerTestOneInput(const char *data)
std::regex re(s, flag);
std::regex_match(s, re);
}
catch (std::regex_error &ex) {}
catch (std::regex_error &) {}
}
}

10
libcxx/test/std/strings/c.strings/cwchar.pass.cpp
View File

@ -40,6 +40,16 @@ int main()
char* ns = 0;
wchar_t* ws = 0;
((void)mb); // Prevent unused warning
((void)s); // Prevent unused warning
((void)tm); // Prevent unused warning
((void)w); // Prevent unused warning
((void)fp); // Prevent unused warning
((void)va); // Prevent unused warning
((void)ns); // Prevent unused warning
((void)ws); // Prevent unused warning
static_assert((std::is_same<decltype(std::fwprintf(fp, L"")), int>::value), "");
static_assert((std::is_same<decltype(std::fwscanf(fp, L"")), int>::value), "");
static_assert((std::is_same<decltype(std::swprintf(ws, s, L"")), int>::value), "");

10
libcxx/test/std/utilities/allocator.adaptor/allocator.adaptor.types/allocator_pointers.pass.cpp
View File

@ -37,7 +37,10 @@ void test_pointer()
{
typename std::allocator_traits<Alloc>::pointer vp;
typename std::allocator_traits<Alloc>::const_pointer cvp;
((void)vp); // Prevent unused warning
((void)cvp); // Prevent unused warning
static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
@ -71,7 +74,10 @@ void test_void_pointer()
{
typename std::allocator_traits<Alloc>::void_pointer vp;
typename std::allocator_traits<Alloc>::const_void_pointer cvp;
((void)vp); // Prevent unused warning
((void)cvp); // Prevent unused warning
static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");

10
libcxx/test/std/utilities/memory/default.allocator/allocator_pointers.pass.cpp
View File

@ -36,7 +36,10 @@ void test_pointer()
{
typename std::allocator_traits<Alloc>::pointer vp;
typename std::allocator_traits<Alloc>::const_pointer cvp;
((void)vp); // Prevent unused warning
((void)cvp); // Prevent unused warning
static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");
@ -70,7 +73,10 @@ void test_void_pointer()
{
typename std::allocator_traits<Alloc>::void_pointer vp;
typename std::allocator_traits<Alloc>::const_void_pointer cvp;
((void)vp); // Prevent unused warning
((void)cvp); // Prevent unused warning
static_assert(std::is_same<bool, decltype( vp == vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp != vp)>::value, "");
static_assert(std::is_same<bool, decltype( vp > vp)>::value, "");

6
libcxx/test/std/utilities/time/date.time/ctime.pass.cpp
View File

@ -21,11 +21,15 @@
int main()
{
std::clock_t c = 0;
((void)c); // avoid unused warning
std::size_t s = 0;
std::time_t t = 0;
std::tm tm = {0};
char str[3];
((void)c); // Prevent unused warning
((void)s); // Prevent unused warning
((void)t); // Prevent unused warning
((void)tm); // Prevent unused warning
((void)str); // Prevent unused warning
static_assert((std::is_same<decltype(std::clock()), std::clock_t>::value), "");
static_assert((std::is_same<decltype(std::difftime(t,t)), double>::value), "");
static_assert((std::is_same<decltype(std::mktime(&tm)), std::time_t>::value), "");

3
libcxx/test/std/utilities/utility/forward/forward.pass.cpp
View File

@ -39,6 +39,9 @@ int main()
A a;
const A ca = A();
((void)a); // Prevent unused warning
((void)ca); // Prevent unused warning
#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
static_assert(sizeof(test(std::forward<A&>(a))) == 1, "");
static_assert(sizeof(test(std::forward<A>(a))) == 4, "");