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| H A D | qsort.c | a4909c0dfb38cdb144f9ec8301365dadc2eee98a Fri Dec 10 17:01:34 UTC 2021 Jerome Forissier <jerome@forissier.org> libutils: qsort.c: fix undefined pointer subtraction
Clang 13.0.0 produces the following warning:
lib/libutils/isoc/qsort.c:81:8: warning: performing pointer subtraction with a null pointer has undefined behavior [-Wnull-pointer-subtraction]
loop: SWAPINIT(a, es);
^~~~~~~~~~~~~~~
lib/libutils/isoc/qsort.c:50:47: note: expanded from macro 'SWAPINIT'
#define SWAPINIT(a, es) swaptype = ((char *)a - (char *)0) % sizeof(long)
^ ~~~~~~~~~
Replace the subtraction with a simple cast to uintptr_t.
Signed-off-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>
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