memcheck/tests/clientperm.c

   1
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 #include "../memcheck.h"
   6
   7 int main1 ( void )
   8 {
   9   int xxx, i;
  10   for (i = 0; i < 10; i++) (void) VALGRIND_CHECK_VALUE_IS_DEFINED(xxx);
  11   return 0;
  12 }
  13
  14 int main ( void )
  15 {
  16    int i, sum, m;
  17    char* aa = calloc(100,1);
  18    sum = 0;
  19
  20    (void) VALGRIND_CHECK_MEM_IS_DEFINED(aa,100);
  21
  22    m = VALGRIND_MAKE_MEM_UNDEFINED( &aa[49], 1 );
  23    (void) VALGRIND_CHECK_MEM_IS_ADDRESSABLE(aa,100);
  24
  25    printf("m_na: returned value is %d\n", m );
  26
  27    for (i = 0; i < 100; i++)
  28      sum += aa[i];
  29    printf("sum is %s\n", sum > 0 ? "positive" : "non-positive");
  30
  31    m = VALGRIND_DISCARD(m);
  32    printf("m_rm: returned value is %d\n", m );
  33
  34    for (i = 0; i < 100; i++)
  35      sum += aa[i];
  36    printf("sum is %s\n", sum > 0 ? "positive" : "non-positive");
  37
  38    return 0;
  39 }