Avoid loop for common memory operations (zeroing, copying, moving).

Use the proper function for common memory operations (memset() for
zeroing, memcpy() for copying, memmove() for moving), instead of
looping through arrays.

By extension, remove loops to reset arrays when they were allocated
with calloc() and thus already zeroed.

1 files changed, 1 insertions, 4 deletions

diff --git a/src/input/pnm.c b/src/input/pnm.c
index 47a24a620..5b8aa7c42 100644
--- a/src/input/pnm.c
+++ b/src/input/pnm.c
@@ -631,10 +631,7 @@ static int pnm_get_stream_chunk(pnm_t *p) {
    */
   n=0;
   while (p->buffer[0] != 0x5a) {
-    int i;
-    for (i=1; i<8; i++) {
-      p->buffer[i-1]=p->buffer[i];
-    }
+    memmove(p->buffer, &p->buffer[1], 8);
     _x_io_tcp_read (p->stream, p->s, &p->buffer[7], 1);
     n++;
   }