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.

2 files changed, 3 insertions, 8 deletions

diff --git a/src/input/input_dvb.c b/src/input/input_dvb.c
index 121e11b11..669cd1e14 100644
--- a/src/input/input_dvb.c
+++ b/src/input/input_dvb.c
@@ -587,8 +587,7 @@ static tuner_t *tuner_init(xine_t * xine, int adapter)
 
     xprintf(this->xine, XINE_VERBOSITY_DEBUG, "tuner_init adapter=%d\n", adapter);
     this->fd_frontend = -1;
-    for (x = 0; x < MAX_FILTERS; x++)
-      this->fd_pidfilter[x] = 0;
+    memset(this->fd_pidfilter, 0, sizeof(this->fd_pidfilter));
 
     this->xine = xine;
     this->adapter_num = adapter;
@@ -933,8 +932,7 @@ static channel_t *load_channels(xine_t *xine, xine_stream_t *stream, int *num_ch
 
     /* Initially there's no EPG data in the EPG structs. */
     channels[num_channels].epg_count = 0;
-    for (i = 0; i < MAX_EPG_ENTRIES_PER_CHANNEL; ++i) 
-	channels[num_channels].epg[i] = NULL;
+    memset(channels[num_channels].epg, 0, sizeof(channels[num_channels].epg));
 
     num_channels++;
   }
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++;
   }