view clang/test/SemaCXX/warn-unused-attribute.cpp @ 221:79ff65ed7e25

LLVM12 Original
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 15 Jun 2021 19:15:29 +0900
parents 1d019706d866
children
line wrap: on
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// RUN: %clang_cc1 -fsyntax-only -Wunused-variable -verify %s
struct __attribute__((warn_unused)) Test {
  Test();
  ~Test();
  void use();
};

struct TestNormal {
  TestNormal();
};

int main(void) {
  Test unused;         // expected-warning {{unused variable 'unused'}}
  Test used;
  TestNormal normal;
  used.use();

  int i __attribute__((warn_unused)) = 12; // expected-warning {{'warn_unused' attribute only applies to structs, unions, and classes}}
  return i;
}