[committed] libstdc++: Add test for illegal pointer arithmetic in format [PR111102]
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Commit Message
From: Paul Dreik <gccpatches@pauldreik.se>
Tested x86_64-linux. Pushed to trunk.
-- >8 --
libstdc++-v3/ChangeLog:
PR libstdc++/111102
* testsuite/std/format/string.cc: Check wide character format
strings with out-of-range widths.
---
libstdc++-v3/testsuite/std/format/string.cc | 15 +++++++++++++++
1 file changed, 15 insertions(+)
@@ -16,6 +16,18 @@ is_format_string_for(const char* str, Args&&... args)
}
}
+template<typename... Args>
+bool
+is_format_string_for(const wchar_t* str, Args&&... args)
+{
+ try {
+ (void) std::vformat(str, std::make_wformat_args(args...));
+ return true;
+ } catch (const std::format_error&) {
+ return false;
+ }
+}
+
void
test_no_args()
{
@@ -124,8 +136,11 @@ test_format_spec()
// Maximum integer value supported for widths and precisions is USHRT_MAX.
VERIFY( is_format_string_for("{:65535}", 1) );
+ VERIFY( is_format_string_for(L"{:65535}", 1) );
VERIFY( ! is_format_string_for("{:65536}", 1) );
+ VERIFY( ! is_format_string_for(L"{:65536}", 1) );
VERIFY( ! is_format_string_for("{:9999999}", 1) );
+ VERIFY( ! is_format_string_for(L"{:9999999}", 1) );
}
void