diff options
Diffstat (limited to 'src/libmdsserver')
| -rw-r--r-- | src/libmdsserver/macros.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/libmdsserver/macros.h b/src/libmdsserver/macros.h index 59537ff..cbef69c 100644 --- a/src/libmdsserver/macros.h +++ b/src/libmdsserver/macros.h @@ -323,6 +323,20 @@ /** + * Double to the size of an allocation on the heap + * + * @param old Variable in which to store the old value temporarily + * @param var The variable to which to assign the reallocation + * @param elements The number of elements to allocate + * @param type The data type of the elements for which to create an allocation + * @return :int Evaluates to true if an only if the allocation failed + */ +#define growalloc(old, var, elements, type) \ + (old = var, xrealloc(var, (elements) <<= 1, type) ? (var = old, (elements) >>= 1, perror(*argv), 1) : 0) + + + +/** * Go to the label `pfail` if a condition is met * * @param CONDITION The condition |