30 lines · cpp
1// RUN: rm -rf %t2// RUN: mkdir -p %t3// RUN: split-file %s %t4//5// RUN: %clang_cc1 -Wno-unused-value -std=c++20 -emit-pch -o %t/header.pch %t/header.h -x c++6// RUN: %clang_cc1 -Wno-unused-value -Wunsafe-buffer-usage -std=c++20 -include-pch %t/header.pch -verify %t/main.cpp7 8//--- header.h9int foo(int *p) {10 return p[5]; // This will be warned11}12 13#pragma clang unsafe_buffer_usage begin14#include "header-2.h"15#pragma clang unsafe_buffer_usage end16 17//--- header-2.h18// Included by the PCH in the traditional way. The include directive19// in the PCH is enclosed in an opt-out region, so unsafe operations20// here is suppressed.21 22int bar(int *p) {23 return p[5];24}25 26 27//--- main.cpp28// expected-warning@header.h:2 {{unsafe buffer access}}29// expected-note@header.h:2 {{pass -fsafe-buffer-usage-suggestions to receive code hardening suggestions}}30