| #include <stdio.h> |
| #include <string.h> |
| #include "config.h" |
| |
| /** |
| * check_type - routines for compile time type checking |
| * |
| * C has fairly weak typing: ints get automatically converted to longs, signed |
| * to unsigned, etc. There are some cases where this is best avoided, and |
| * these macros provide methods for evoking warnings (or build errors) when |
| * a precise type isn't used. |
| * |
| * On compilers which don't support typeof() these routines are less effective, |
| * since they have to use sizeof() which can only distiguish between types of |
| * different size. |
| * |
| * 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) { |
| #if !HAVE_TYPEOF |
| printf("ccan/build_assert\n"); |
| #endif |
| return 0; |
| } |
| |
| return 1; |
| } |