https://gcc.gnu.org/g:dbb20c388157df875a8aa4005dd958c34fd76746
commit r16-9718-gdbb20c388157df875a8aa4005dd958c34fd76746 Author: Jonathan Wakely <[email protected]> Date: Tue Sep 29 15:17:25 2026 +0100 libstdc++: Fix failing performance test This test no longer builds because (file >> line) is ill-formed in C++20, since r11-2581-g17abcc77341584 which implemented LWG 2499. There's no reason to use a dynamically-allocated array when the length is a small constant. We can just use an array on the stack. libstdc++-v3/ChangeLog: * testsuite/performance/27_io/ifstream_extract_chars.cc: Use stack array instead of dynamic allocation. Reviewed-by: Tomasz Kamiński <[email protected]> (cherry picked from commit 4e596c9800ec9441409275f79326805a4fde8358) Diff: --- libstdc++-v3/testsuite/performance/27_io/ifstream_extract_chars.cc | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/libstdc++-v3/testsuite/performance/27_io/ifstream_extract_chars.cc b/libstdc++-v3/testsuite/performance/27_io/ifstream_extract_chars.cc index e3c754063279..89c84215108e 100644 --- a/libstdc++-v3/testsuite/performance/27_io/ifstream_extract_chars.cc +++ b/libstdc++-v3/testsuite/performance/27_io/ifstream_extract_chars.cc @@ -34,7 +34,7 @@ int main() const unsigned lines = 200000; const unsigned line_length = 200; - char* line = new char[line_length + 2]; + char line[line_length + 2]; // Construct data. { @@ -76,7 +76,6 @@ int main() clear_counters(time, resource); } - delete[] line; unlink(filename); return 0; }
