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#include <signal.h>

char *foo;

void int_handler() {
  free(foo);
  _Exit(0);
}

int main(void) {
  foo = malloc(15);
  if(foo == NULL) {
    /* handle error condition */
  }

  signal(SIGINT, int_handler);
  strcpy(foo, "Hello World.");
  puts(foo);
  free(foo);
  return 0;
}

#include <signal.h>

char *foo;

void int_handler() {
  _Exit(0);
}

int main(void) {
  foo = malloc(15);
  if(foo == NULL) {
    /* handle error condition */
    return 0;
  }
  signal(SIGINT, int_handler);
  strcpy(foo, "Hello World.");
  puts(foo);
  free(foo);
  return 0;
}