File: malloc_usable_size.c

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-7
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 1,998,872 kB
  • sloc: cpp: 6,951,694; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,033; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,177; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (31 lines) | stat: -rw-r--r-- 763 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
27
28
29
30
31
 
// RUN: %clang -O2 %s -o %t && %run %t

// Must not be implemented, no other reason to install interceptors.
// XFAIL: ubsan

#include <assert.h>
#include <malloc.h>
#include <sanitizer/allocator_interface.h>
#include <stdlib.h>

void *p;

int main() {
  assert(__sanitizer_get_allocated_size(NULL) == 0);
  assert(malloc_usable_size(NULL) == 0);

  int size = 1;
  p = malloc(size);
  assert(__sanitizer_get_allocated_size(p) == size);
  assert(__sanitizer_get_allocated_size_fast(p) == size);
  assert(malloc_usable_size(p) == size);
  free(p);

  size = 1234567;
  p = malloc(size);
  assert(__sanitizer_get_allocated_size(p) == size);
  assert(__sanitizer_get_allocated_size_fast(p) == size);
  assert(malloc_usable_size(p) == size);
  free(p);
  return 0;
}