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string: Add function to convert from string to unsigned ints

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Signed-off-by: Otavio Pontes <otavio.pontes@intel.com>
This commit is contained in:
Otavio Pontes
2020-05-12 12:27:06 -07:00
parent fb43852440
commit 5f67a46354
3 changed files with 186 additions and 0 deletions
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test/unit/test_strings.c
+119
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@@ -239,6 +239,123 @@ static void test_str_to_int_endptr()
}
static void test_str_to_uint()
{
char tmp_str[100];
int err;
unsigned int value = 0;
size_t i;
// test some standard values
char *str_values[] = { "0", "-0", "123", "000123" };
unsigned int values[] = { 0, 0, 123, 123 };
for (i = 0; i < sizeof(values) / sizeof(int); i++) {
value = 0xffffff;
err = str_to_uint(str_values[i], &value);
check(err == 0);
check(value == values[i]);
}
// test limits
value = 0xffffff;
snprintf(tmp_str, sizeof(tmp_str), "%u", UINT_MAX - 1);
err = str_to_uint(tmp_str, &value);
check(err == 0);
check(value == UINT_MAX - 1);
value = 0xffffff;
snprintf(tmp_str, sizeof(tmp_str), "%u", UINT_MAX);
err = str_to_uint(tmp_str, &value);
check(err == 0);
check(value == UINT_MAX);
// test errors
value = 0xffffff;
snprintf(tmp_str, sizeof(tmp_str), "%ld", (long)UINT_MAX + 1);
err = str_to_uint(tmp_str, &value);
check(err == -ERANGE);
check(value == UINT_MAX);
value = 0xffffff;
snprintf(tmp_str, sizeof(tmp_str), "%ld", (long)UINT_MAX + 1000);
err = str_to_uint(tmp_str, &value);
check(err == -ERANGE);
check(value == UINT_MAX);
// Negative
value = 0xffffff;
snprintf(tmp_str, sizeof(tmp_str), "%d", -1);
err = str_to_uint(tmp_str, &value);
check(err == -ERANGE);
check(value == 0);
value = 0xffffff;
snprintf(tmp_str, sizeof(tmp_str), "%d", INT_MIN);
err = str_to_uint(tmp_str, &value);
check(err == -ERANGE);
check(value == 0);
// test EINVAL errors
char *einval_errors[] = { "string", "123.456", "123a", "a123a", "456b123", "0x12345", "4f"};
for (i = 0; i < sizeof(einval_errors) / sizeof(char *); i++) {
err = str_to_uint(einval_errors[i], &value);
check(err == -EINVAL);
}
}
static void test_str_to_uint_endptr()
{
char *endptr;
int err;
unsigned int value = 0;
// Test endptr trailing chars
value = 0xffffff;
endptr = NULL;
err = str_to_uint_endptr("123.456", &endptr, &value);
check(err == 0);
check(value == 123);
check(endptr != NULL);
check(*endptr == '.');
value = 0xffffff;
endptr = NULL;
err = str_to_uint_endptr("123a456", &endptr, &value);
check(err == 0);
check(value == 123);
check(endptr != NULL);
check(*endptr == 'a');
value = 0xffffff;
endptr = NULL;
err = str_to_uint_endptr("123testing456", &endptr, &value);
check(err == 0);
check(value == 123);
check(endptr != NULL);
check(*endptr == 't');
value = 0xffffff;
endptr = NULL;
err = str_to_uint_endptr("123-456", &endptr, &value);
check(err == 0);
check(value == 123);
check(endptr != NULL);
check(*endptr == '-');
value = 0xffffff;
endptr = NULL;
err = str_to_uint_endptr("-123.456", &endptr, &value);
check(err == -ERANGE);
value = 0xffffff;
endptr = NULL;
err = str_to_uint_endptr("-123a456", &endptr, &value);
check(err == -ERANGE);
}
void test_str_join()
{
struct list *str_list = NULL;
@@ -280,6 +397,8 @@ int main() {
test_str_to_int();
test_str_to_int_endptr();
test_str_join();
test_str_to_uint();
test_str_to_uint_endptr();
return 0;
}