| #include "config.h" |
| #include <stdio.h> |
| #include <string.h> |
| |
| /** |
| * str - string helper routines |
| * |
| * This is a grab bag of functions for string operations, designed to enhance |
| * the standard string.h. |
| * |
| * Note that if you define CCAN_STR_DEBUG, you will get extra compile |
| * checks on common misuses of the following functions (they will now |
| * be out-of-line, so there is a runtime penalty!). |
| * |
| * strstr, strchr, strrchr: |
| * Return const char * if first argument is const (gcc only). |
| * |
| * isalnum, isalpha, isascii, isblank, iscntrl, isdigit, isgraph, |
| * islower, isprint, ispunct, isspace, isupper, isxdigit: |
| * Static and runtime check that input is EOF or an *unsigned* |
| * char, as per C standard (really!). |
| * |
| * Example: |
| * #include <stdio.h> |
| * #include <ccan/str/str.h> |
| * |
| * int main(int argc, char *argv[]) |
| * { |
| * if (argc > 1 && streq(argv[1], "--verbose")) |
| * printf("verbose set\n"); |
| * if (argc > 1 && strstarts(argv[1], "--")) |
| * printf("Some option set\n"); |
| * if (argc > 1 && strends(argv[1], "cow-powers")) |
| * printf("Magic option set\n"); |
| * return 0; |
| * } |
| * |
| * License: CC0 (Public domain) |
| * Author: Rusty Russell <rusty@rustcorp.com.au> |
| */ |
| int main(int argc, char *argv[]) |
| { |
| if (argc != 2) |
| return 1; |
| |
| if (strcmp(argv[1], "depends") == 0) { |
| printf("ccan/build_assert\n"); |
| return 0; |
| } |
| |
| return 1; |
| } |