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Enhance my 'sresize' macro so that it type-checks the pointer you pass

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_in_ to it, as well as the one it returns. Why have I never thought of
doing that before?!

[originally from svn r9539]
This commit is contained in:
Simon Tatham 2012-05-18 19:51:11 +00:00
parent 29184e3702
commit c10a8dee07
1 changed files with 2 additions and 1 deletions
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puttymem.h
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@ -37,6 +37,7 @@ void safefree(void *);
*/ */
#define snew(type) ((type *)snmalloc(1, sizeof(type))) #define snew(type) ((type *)snmalloc(1, sizeof(type)))
#define snewn(n, type) ((type *)snmalloc((n), sizeof(type))) #define snewn(n, type) ((type *)snmalloc((n), sizeof(type)))
#define sresize(ptr, n, type) ((type *)snrealloc((ptr), (n), sizeof(type))) #define sresize(ptr, n, type) \
((type *)snrealloc((sizeof((type *)0 == (ptr)), (ptr)), (n), sizeof(type)))
#endif #endif