When compiled with -m32 -O2 -D_GLIBCXX_USE_CXX11_ABI=0 we get a warning
for 21_strings/basic_string/cons/char/1.cc:
bits/char_traits.h:409:56: warning: ‘void* __builtin_memcpy(void*, const void*, unsigned int)’ reading
1073741821 bytes from a region of size 19 [-Wstringop-overread]
The warning is legitimate, even if that line cannot be reached because
we throw std::length_error before getting there. Since the invalid
length is deliberate (and mentioned in a comment) just suppress the
warning, so that the test can verify we get the exception.
Also remove an unused typedef that produces another warning.
libstdc++-v3/ChangeLog:
* testsuite/21_strings/basic_string/cons/char/1.cc: Use
diagnostic pragma to suppress -Wstringop-overread error.
Signed-off-by: Jonathan Wakely <jwakely@redhat.com>
void test01(void)
{
typedef string::size_type csize_type;
- typedef string::iterator citerator;
csize_type npos = string::npos;
csize_type csz01;
// basic_string(const char* s, size_type n, alloc)
csz01 = str01.max_size();
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstringop-overread"
// NB: As strlen(str_lit01) != csz01, this test is undefined. It
// should not crash, but what gets constructed is a bit arbitrary.
try {
catch(...) {
VERIFY( false );
}
+#pragma GCC diagnostic pop
// Build a maxsize - 1 lengthed string consisting of all A's
try {