method-17.m

来自「用于进行gcc测试」· M 代码 · 共 27 行

/* Test for spurious "may or may not return a value" warnings.  */

/* { dg-do compile } */
/* { dg-options "-Wreturn-type -Wextra" } */

#include <objc/Object.h>

@interface Foo: Object
- (id) meth1;
- (void) meth2;
@end

extern int bar;

@implementation Foo
- (id) meth1 {
  if (bar)
    return [Object new];
  return; /* { dg-warning "'return' with no value, in function returning non-void" } */
} 
- (void) meth2 {
  if (!bar)
    return;
  bar = 0;
} /* { dg-bogus "'return' with no value, in function returning non-void" } */
@end