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Fix possible infinite recursion in FMT_ASSERT (#1744)

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Use std::fprintf for assertion message output preventing infinite
recursion when output to stderr is limited or broken.
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Tobias Hammer 2020-07-01 17:28:27 +02:00 committed by GitHub
parent cbddab2fe2
commit 5de62af604
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1 changed files with 3 additions and 1 deletions
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4
include/fmt/format-inl.h
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@ -49,7 +49,9 @@ FMT_BEGIN_NAMESPACE
namespace detail {
FMT_FUNC void assert_fail(const char* file, int line, const char* message) {
print(stderr, "{}:{}: assertion failed: {}", file, line, message);
// Use unchecked std::fprintf to avoid triggering another assertion when
// writing to stderr fails
std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message);
// Chosen instead of std::abort to satisfy Clang in CUDA mode during device
// code pass.
std::terminate();