C++ (Cpp) Frama_C_show_each_saveptr示例

示例#1

void test_strtok_r() {
  if (nondet) {
    strtok_r(NULL, " ", NULL); // must fail
    //@ assert unreachable: \false;
  }
  char *saveptr;
  char buf[2] = {0};
  char *a = strtok_r(buf, " ", &saveptr);
  if (nondet) {
    strtok_r(buf, " ", NULL); // must fail
    //@ assert unreachable: \false;
  }
  //@ assert a == \null || \subset(a, buf+(0..));
  char *b = strtok_r(NULL, " ", &saveptr);
  Frama_C_show_each_saveptr(saveptr);
  //@ assert b == \null || \subset(b, buf+(0..));
  char buf2[4] = "abc";
  char *p = strtok_r(buf2, "b", &saveptr);
  //@ assert p == \null || \subset(p, buf2+(0..));
  char *q = strtok_r(NULL, "c", &saveptr);
  //@ assert q == \null || \subset(p, buf2+(0..));
  // test with non-writable string, but delimiter not found
  char *r = strtok_r((char*)"constant!", "NONE_TO_BE_FOUND", &saveptr);
  //@ assert r == \null;
  if (nondet) {
    strtok_r((char*)"constant!", "!", &saveptr);
    //@ assert unreachable_if_precise: \false;
  }
}

示例#2

文件： string_h.c 项目： maroneze/Frama-C-snapshot

void test_strtok_r() {
  if (nondet) {
    strtok_r(NULL, " ", NULL); // must fail
    //@ assert unreachable: \false;
  }
  char *saveptr;
  char buf[2] = {0};
  char *a = strtok_r(buf, " ", &saveptr);
  if (nondet) {
    strtok_r(buf, " ", NULL); // must fail
    //@ assert unreachable: \false;
  }
  //@ assert a == \null || \subset(a, buf+(0..));
  char *b = strtok_r(NULL, " ", &saveptr);
  Frama_C_show_each_saveptr(saveptr);
  //@ assert b == \null || \subset(b, buf+(0..));
  char buf2[4] = "abc";
  char *p = strtok_r(buf2, "b", &saveptr);
  //@ assert p == \null || \subset(p, buf2+(0..));
  char *q = strtok_r(NULL, "c", &saveptr);
  //@ assert q == \null || \subset(p, buf2+(0..));
}