| // SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| /* |
| * Copyright 2013-2015 IBM Corp. |
| */ |
| |
| #define BUFSZ 50 |
| |
| #include <stdlib.h> |
| #include <assert.h> |
| #include <string.h> |
| #include <stdio.h> |
| |
| int main(void) |
| { |
| char buf[] = "42, and stuff."; |
| char *ptr; |
| |
| /* atoi/strtol - general correct behavior */ |
| assert(atoi("0") == 0); |
| assert(atoi("1") == 1); |
| assert(atoi(" 123456") == 123456); |
| assert(atoi("-72") == -72); |
| assert(atoi(" -84") == -84); |
| assert(atoi("2147483647") == 2147483647); |
| |
| /* atoi/strtol - numbers before and after strings */ |
| assert(atoi("hello!123") == 0); |
| assert(atoi(buf) == 42); |
| assert(atoi("42isthemagicnumber") == 42); |
| |
| /* atoi is base 10 only */ |
| assert(atoi("0x800") == 0); |
| |
| /* atol - ensure it recognises longs */ |
| assert(atol("2147483648") == 2147483648); |
| assert(atol("-2147483649") == -2147483649); |
| |
| /* strtol detects hex */ |
| assert(strtol("0x800", NULL, 0) == 0x800); |
| /* But not with a duplicate prefix */ |
| assert(strtol("0x0x800", NULL, 0) == 0); |
| |
| /* strtol - invalid/weird bases */ |
| assert(strtol("z", NULL, -1) == 0); |
| assert(strtol("11111", NULL, 1) == 0); |
| assert(strtol("z", NULL, 37) == 0); |
| assert(strtol("z", NULL, 36) == 35); |
| assert(strtol("-Y", NULL, 36) == -34); |
| |
| /* strtol - ptr advanced correctly */ |
| ptr = buf; |
| assert(strtol(buf, &ptr, 10) == 42); |
| assert(ptr == buf + 2); |
| |
| /* strtoul - base 10 */ |
| assert(strtoul("0", NULL, 10) == 0); |
| assert(strtoul("1", NULL, 10) == 1); |
| assert(strtoul(" 123456", NULL, 10) == 123456); |
| assert(strtoul("-72", NULL, 10) == 0); |
| assert(strtoul("9999999999", NULL, 10) == 9999999999); |
| assert(strtoul("hello!123", NULL, 10) == 0); |
| assert(strtoul(buf, NULL, 10) == 42); |
| assert(strtoul("42isthemagicnumber", NULL, 10) == 42); |
| |
| /* strtoul - autodetection of base */ |
| assert(strtoul(" 123456", NULL, 0) == 123456); |
| assert(strtoul("0x800", NULL, 0) == 0x800); |
| assert(strtoul("0x0x800", NULL, 0) == 0); |
| |
| /* strtoul - weird/invalid bases */ |
| assert(strtoul("z", NULL, -1) == 0); |
| assert(strtoul("11111", NULL, 1) == 0); |
| assert(strtoul("z", NULL, 37) == 0); |
| assert(strtoul("z", NULL, 36) == 35); |
| assert(strtoul("Y", NULL, 36) == 34); |
| |
| /* labs - ensure it returns absolute value */ |
| assert(labs(0) == 0); |
| assert(labs(2147483647) == 2147483647); |
| assert(labs(-2147483647) == 2147483647); |
| assert(labs(9223372036854775807) == 9223372036854775807); |
| assert(labs(-9223372036854775807) == 9223372036854775807); |
| |
| return 0; |
| } |