clang compiler warnings: Fix -Wabsolute-value warnings

This patch fixes several warnings caught by clang - in this case, usage of the
abs function on non-integer values. This patch uses labs and fabs, as
appropriate, in the various affected files.

Review: https://reviewboard.asterisk.org/r/4525

ASTERISK-24917
Reported by: dkdegroot
patches:
  rb4525.patch submitted by dkdegroot (License 6600)
........

Merged revisions 433749 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/13@433750 65c4cc65-6c06-0410-ace0-fbb531ad65f3

2 files changed, 11 insertions, 11 deletions

diff --git a/res/res_calendar.c b/res/res_calendar.c
index 980e14125..5b911ca5b 100644
--- a/res/res_calendar.c
+++ b/res/res_calendar.c
@@ -1106,8 +1106,8 @@ static struct ast_custom_function calendar_busy_function = {
 static int add_event_to_list(struct eventlist *events, struct ast_calendar_event *event, time_t start, time_t end)
 {
 	struct evententry *entry, *iter;
-	int event_startdiff = abs(start - event->start);
-	int event_enddiff = abs(end - event->end);
+	long event_startdiff = labs(start - event->start);
+	long event_enddiff = labs(end - event->end);
 	int i = 0;
 
 	if (!(entry = ast_calloc(1, sizeof(*entry)))) {
@@ -1120,16 +1120,16 @@ static int add_event_to_list(struct eventlist *events, struct ast_calendar_event
 
 	if (start == end) {
 		AST_LIST_TRAVERSE_SAFE_BEGIN(events, iter, list) {
-			int startdiff = abs(iter->event->start - start);
+			long startdiff = labs(iter->event->start - start);
 
-			ast_debug(10, "Comparing %s with startdiff %d to %s with startdiff %d\n", event->summary, event_startdiff, iter->event->summary, startdiff);
+			ast_debug(10, "Comparing %s with startdiff %ld to %s with startdiff %ld\n", event->summary, event_startdiff, iter->event->summary, startdiff);
 			++i;
 			if (startdiff > event_startdiff) {
 				AST_LIST_INSERT_BEFORE_CURRENT(entry, list);
 				return i;
 			}
 			if (startdiff == event_startdiff) {
-				int enddiff = abs(iter->event->end - end);
+				long enddiff = labs(iter->event->end - end);
 
 				if (enddiff > event_enddiff) {
 					AST_LIST_INSERT_BEFORE_CURRENT(entry, list);
diff --git a/res/res_rtp_asterisk.c b/res/res_rtp_asterisk.c
index f4910dbb9..8300ef412 100644
--- a/res/res_rtp_asterisk.c
+++ b/res/res_rtp_asterisk.c
@@ -3147,10 +3147,10 @@ static int ast_rtp_raw_write(struct ast_rtp_instance *instance, struct ast_frame
 		if (ast_tvzero(frame->delivery)) {
 			/* If this isn't an absolute delivery time, Check if it is close to our prediction,
 			   and if so, go with our prediction */
-			if (abs(rtp->lastts - pred) < MAX_TIMESTAMP_SKEW) {
+			if (abs((int)rtp->lastts - pred) < MAX_TIMESTAMP_SKEW) {
 				rtp->lastts = pred;
 			} else {
-				ast_debug(3, "Difference is %d, ms is %u\n", abs(rtp->lastts - pred), ms);
+				ast_debug(3, "Difference is %d, ms is %u\n", abs((int)rtp->lastts - pred), ms);
 				mark = 1;
 			}
 		}
@@ -3161,11 +3161,11 @@ static int ast_rtp_raw_write(struct ast_rtp_instance *instance, struct ast_frame
 		rtp->lastts = rtp->lastts + ms * 90;
 		/* If it's close to our prediction, go for it */
 		if (ast_tvzero(frame->delivery)) {
-			if (abs(rtp->lastts - pred) < 7200) {
+			if (abs((int)rtp->lastts - pred) < 7200) {
 				rtp->lastts = pred;
 				rtp->lastovidtimestamp += frame->samples;
 			} else {
-				ast_debug(3, "Difference is %d, ms is %u (%u), pred/ts/samples %u/%d/%d\n", abs(rtp->lastts - pred), ms, ms * 90, rtp->lastts, pred, frame->samples);
+				ast_debug(3, "Difference is %d, ms is %u (%u), pred/ts/samples %u/%d/%d\n", abs((int)rtp->lastts - pred), ms, ms * 90, rtp->lastts, pred, frame->samples);
 				rtp->lastovidtimestamp = rtp->lastts;
 			}
 		}
@@ -3175,11 +3175,11 @@ static int ast_rtp_raw_write(struct ast_rtp_instance *instance, struct ast_frame
 		rtp->lastts = rtp->lastts + ms;
 		/* If it's close to our prediction, go for it */
 		if (ast_tvzero(frame->delivery)) {
-			if (abs(rtp->lastts - pred) < 7200) {
+			if (abs((int)rtp->lastts - pred) < 7200) {
 				rtp->lastts = pred;
 				rtp->lastotexttimestamp += frame->samples;
 			} else {
-				ast_debug(3, "Difference is %d, ms is %u, pred/ts/samples %u/%d/%d\n", abs(rtp->lastts - pred), ms, rtp->lastts, pred, frame->samples);
+				ast_debug(3, "Difference is %d, ms is %u, pred/ts/samples %u/%d/%d\n", abs((int)rtp->lastts - pred), ms, rtp->lastts, pred, frame->samples);
 				rtp->lastotexttimestamp = rtp->lastts;
 			}
 		}