avutil/qsort: use the do while form for AV_QSORT, AV_MSORT

Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-10-22 22:52:11 -04:00
parent 0c7b44a01c
commit 8ed79c45b4

View File

@ -27,7 +27,7 @@
* to construct input that requires O(n^2) time but this is very unlikely to
* happen with non constructed input.
*/
#define AV_QSORT(p, num, type, cmp) {\
#define AV_QSORT(p, num, type, cmp) do {\
void *stack[64][2];\
int sp= 1;\
stack[0][0] = p;\
@ -89,7 +89,7 @@
}\
}\
}\
}
} while (0)
/**
* Merge sort, this sort requires a temporary buffer and is stable, its worst
@ -97,7 +97,7 @@
* @param p must be a lvalue pointer, this function may exchange it with tmp
* @param tmp must be a lvalue pointer, this function may exchange it with p
*/
#define AV_MSORT(p, tmp, num, type, cmp) {\
#define AV_MSORT(p, tmp, num, type, cmp) do {\
unsigned i, j, step;\
for(step=1; step<(num); step+=step){\
for(i=0; i<(num); i+=2*step){\
@ -114,4 +114,4 @@
}\
FFSWAP(type*, p, tmp);\
}\
}
} while (0)