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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
void check_error() {
if (errno) {
printf("ERR %d\n", errno);
errno = 0;
}
}
int main() {
char* test_values[] = {
"-9223372036854775809",
"-9223372036854775808",
"-9223372036854775807",
"-2147483649",
"-2147483648",
"-2147483647",
"-5",
"-1",
"0",
"1",
"5",
"2147483646",
"2147483647",
"2147483648",
"4294967294",
"4294967295",
"4294967296",
"18446744073709551614",
"18446744073709551615",
"18446744073709551616",
};
for (int i = 0; i < sizeof(test_values) / sizeof(test_values[0]); i++) {
printf("strtol(\"%s\") = %ld\n", test_values[i], strtol(test_values[i], 0, 0));
check_error();
printf("strtoll(\"%s\") = %lld\n", test_values[i], strtoll(test_values[i], 0, 0));
check_error();
printf("strtoul(\"%s\") = %lu\n", test_values[i], strtoul(test_values[i], 0, 0));
check_error();
printf("strtoull(\"%s\") = %llu\n", test_values[i], strtoull(test_values[i], 0, 0));
check_error();
printf("\n");
}
printf("strtol(\"0x12\", 0, 0) = %ld\n", strtol("0x12", 0, 0));
printf("strtol(\"0x12\", 0, 10) = %ld\n", strtol("0x12", 0, 10));
printf("strtol(\"012\", 0, 0) = %ld\n", strtol("012", 0, 0));
printf("strtol(\"012\", 0, 10) = %ld\n", strtol("012", 0, 10));
printf("strtol(\"0y12\", 0, 0) = %ld\n", strtol("0y12", 0, 0));
printf("strtol(\"hello\", 0, 30) = %ld\n", strtol("hello", 0, 30));
printf("strtol(\"hello\", 0, 10) = %ld\n", strtol("hello", 0, 10));
printf("strtol(\"not-a-number\") = %ld\n", strtol("not-a-number", 0, 0));
char str[] = " 0x12end";
char* endptr;
printf("strtol(\" 0x12end\") = %ld\n", strtol(str, &endptr, 0));
printf("endptr - str = %d\n", endptr - str);
check_error();
return 0;
}
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