File: warn-sizeof-arrayarg.c

package info (click to toggle)
llvm-toolchain-11 1%3A11.0.1-2~deb10u1
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 995,836 kB
  • sloc: cpp: 4,767,656; ansic: 760,916; asm: 477,436; python: 170,940; objc: 69,804; lisp: 29,914; sh: 23,855; f90: 18,173; pascal: 7,551; perl: 7,471; ml: 5,603; awk: 3,489; makefile: 2,573; xml: 915; cs: 573; fortran: 503; javascript: 452
file content (26 lines) | stat: -rw-r--r-- 885 bytes parent folder | download | duplicates (17) 
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
 
// RUN: %clang_cc1 -fsyntax-only -verify %s

typedef int Arr[10];

typedef int trungl_int;

void f(int a[10], Arr arr) { // expected-note 4 {{declared here}}

  /* Should warn. */
  (void)sizeof(a);  // \
      // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int [10]'}}
  (void)sizeof((((a))));  // \
      // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int [10]'}}
  (void)sizeof a;  // \
      // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int [10]'}}
  (void)sizeof arr;  // \
      // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'Arr' (aka 'int [10]')}}

  /* Shouldn't warn. */
  int b[10];
  (void)sizeof b;
  Arr brr;
  (void)sizeof brr;
  (void)sizeof(Arr);
  (void)sizeof(int);
}