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Diffstat (limited to 'source4/lib/replace/replace.h')
| -rw-r--r-- | source4/lib/replace/replace.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/source4/lib/replace/replace.h b/source4/lib/replace/replace.h index 7d6dcec7f1..959d44b33e 100644 --- a/source4/lib/replace/replace.h +++ b/source4/lib/replace/replace.h @@ -79,6 +79,29 @@ #include <stddef.h> #endif +/** + this is a warning hack. The idea is to use this everywhere that we + get the "discarding const" warning from gcc. That doesn't actually + fix the problem of course, but it means that when we do get to + cleaning them up we can do it by searching the code for + discard_const. + + It also means that other error types aren't as swamped by the noise + of hundreds of const warnings, so we are more likely to notice when + we get new errors. + + Please only add more uses of this macro when you find it + _really_ hard to fix const warnings. Our aim is to eventually use + this function in only a very few places. + + Also, please call this via the discard_const_p() macro interface, as that + makes the return type safe. +*/ +#define discard_const(ptr) ((void *)((intptr_t)(ptr))) + +/** Type-safe version of discard_const */ +#define discard_const_p(type, ptr) ((type *)discard_const(ptr)) + #ifndef HAVE_STRERROR extern char *sys_errlist[]; #define strerror(i) sys_errlist[i] |