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IMPLEMENT macros for defining wrapper functions for "hash" and "cmp" callbacks that are specific to the underlying item type in a hash-table. This prevents function pointer casting altogether, and also provides some type-safety because the macro does per-variable casting from the (void *) type used in LHASH itself to the type declared in the macro - and if that doesn't match the prototype expected by the "hash" or "cmp" function then a compiler error will result. NB: IMPLEMENT macros are not required unless predeclared forms are required (either in a header file, or further up in a C file than the implementation needs to be). The DECLARE macros must occur after the type-specific hash/cmp callbacks are declared. Also, the IMPLEMENT and DECLARE macros are such that they can be prefixed with "static" if desired and a trailing semi-colon should be appended (making it look more like a regular declaration and easier on auto-formatting text-editors too). Now that these macros are defined, I will next be commiting changes to a number of places in the library where the casting was doing bad things. After that, the final step will be to make the analogous changes for the lh_doall and lh_doall_arg functions (more specifically, their callback parameters). |
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| .. | ||
| .cvsignore | ||
| lh_stats.c | ||
| lh_test.c | ||
| lhash.c | ||
| lhash.h | ||
| Makefile.ssl | ||
| num.pl | ||