3e023f7169
Fixes https://github.com/llvm/llvm-project/issues/161075. This patch follow the changes in https://github.com/llvm/llvm-project/pull/150962, and fix a crash issue when `-Wformat-signedness` was specificed.
31 lines
1.5 KiB
C++
31 lines
1.5 KiB
C++
// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -verify -Wformat -Wformat-signedness %s
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// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only -verify -Wformat -Wformat-signedness %s
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// Verify that -Wformat-signedness alone (without -Wformat) trigger the
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// warnings. Note in gcc this will not trigger the signedness warnings as
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// -Wformat is default off in gcc.
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// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -verify -Wformat-signedness %s
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// RUN: %clang_cc1 -triple=x86_64-pc-win32 -fsyntax-only -verify -Wformat-signedness %s
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// Verify that -Wformat-signedness warnings are not reported with only -Wformat
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// (gcc compat).
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// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -Wformat -verify=okay %s
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// Verify that -Wformat-signedness with -Wno-format are not reported (gcc compat).
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// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -Wformat-signedness -Wno-format -verify=okay %s
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// RUN: %clang_cc1 -triple=x86_64-pc-linux-gnu -fsyntax-only -Wno-format -Wformat-signedness -verify=okay %s
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// okay-no-diagnostics
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// Ignore 'GCC requires a function with the 'format' attribute to be variadic'.
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#pragma GCC diagnostic ignored "-Wgcc-compat"
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namespace GH161075 {
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template <typename... Args>
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void format(const char *fmt, Args &&...args)
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__attribute__((format(printf, 1, 2)));
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void do_format() {
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bool b = false;
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format("%hhi %hhu %hi %hu %i %u", b, b, b, b, b, b); // expected-warning {{format specifies type 'unsigned char' but the argument has type 'bool', which differs in signedness}}
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}
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} // namespace GH161075
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