Always use unsigned char * for data buffers

Before this commit I was inconsistently using one of void *, char *
and uint8_t *.

1 files changed, 3 insertions, 3 deletions

diff --git a/test/102_cocsep_selfsim/cocsep_selfsim_tests.c b/test/102_cocsep_selfsim/cocsep_selfsim_tests.c
index dd778aa..0ead3b4 100644
--- a/test/102_cocsep_selfsim/cocsep_selfsim_tests.c
+++ b/test/102_cocsep_selfsim/cocsep_selfsim_tests.c
@@ -7,19 +7,19 @@
  */
 #include "../test.h"
 
-size_t gendata_cocsep(void *, uint64_t *, cube_t *);
+size_t gendata_cocsep(unsigned char *, uint64_t *, cube_t *);
 int64_t coord_cocsep(cube_t);
 
 void run(void) {
         char str[STRLENMAX];
-        char buf[2000000];
+        unsigned char buf[2000000];
         uint32_t *cocsepdata, data;
         int64_t coord, coclass;
         uint64_t selfsim[COCSEP_CLASSES], sim, t;
         cube_t cube, rep[COCSEP_CLASSES];
 
         gendata_cocsep(buf, selfsim, rep);
-        cocsepdata = (uint32_t *)((char *)buf + INFOSIZE);
+        cocsepdata = (uint32_t *)(buf + INFOSIZE);
 
         /* All cases in the same test so we do not generate data many times */