clang/test/SemaCXX/warn-unsafe-buffer-usage-c-linkage.cpp

   1 // RUN: %clang_cc1 -std=c++20 -Wunsafe-buffer-usage -fsafe-buffer-usage-suggestions -verify %s
   2
   3 extern "C" {
   4 void foo(int *ptr) {
   5   ptr[5] = 10;  // expected-warning{{unsafe buffer access}}
   6 }
   7
   8 void bar(int *ptr);
   9
  10 struct c_struct {
  11   char *name;
  12 };
  13 }
  14
  15 void bar(int *ptr) {
  16   ptr[5] = 10;  // expected-warning{{unsafe buffer access}}
  17 }
  18
  19 void call_foo(int *p) {
  20   foo(p);
  21   struct c_struct str;
  22   str.name[7] = 9;  // expected-warning{{unsafe buffer access}}
  23   bar(p);
  24 }