File: nil-return-struct.mm

package info (click to toggle)
llvm-toolchain-14 1%3A14.0.6-20
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 1,496,436 kB
  • sloc: cpp: 5,593,990; ansic: 986,873; asm: 585,869; python: 184,223; objc: 72,530; lisp: 31,119; f90: 27,793; javascript: 9,780; pascal: 9,762; sh: 9,482; perl: 7,468; ml: 5,432; awk: 3,523; makefile: 2,547; xml: 953; cs: 573; fortran: 567
file content (31 lines) | stat: -rw-r--r-- 586 bytes parent folder | download | duplicates (37) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
 
// RUN: %clang_asan %s -o %t -framework Foundation
// RUN: %run %t 2>&1 | FileCheck %s

#import <Foundation/Foundation.h>

struct MyStruct {
  long a, b, c, d;
};

@interface MyClass: NSObject
- (MyStruct)methodWhichReturnsARect;
@end
@implementation MyClass
- (MyStruct)methodWhichReturnsARect {
  MyStruct s;
  s.a = 10;
  s.b = 20;
  s.c = 30;
  s.d = 40;
  return s;
}
@end

int main() {
  MyClass *myNil = nil;  // intentionally nil
  [myNil methodWhichReturnsARect];
  fprintf(stderr, "Hello world");
}

// CHECK-NOT: AddressSanitizer: stack-use-after-scope
// CHECK: Hello world