Index: src/OFDate.m
==================================================================
--- src/OFDate.m
+++ src/OFDate.m
@@ -49,11 +49,11 @@
 #ifdef HAVE_GMTIME_R
 # define GMTIME_RET(field)						\
 	time_t seconds = (time_t)_seconds;				\
 	struct tm tm;							\
 									\
-	if (seconds != floor(_seconds))					\
+	if (seconds != trunc(_seconds))					\
 		@throw [OFOutOfRangeException exception];		\
 									\
 	if (gmtime_r(&seconds, &tm) == NULL)				\
 		@throw [OFOutOfRangeException exception];		\
 									\
@@ -60,11 +60,11 @@
 	return tm.field;
 # define LOCALTIME_RET(field)						\
 	time_t seconds = (time_t)_seconds;				\
 	struct tm tm;							\
 									\
-	if (seconds != floor(_seconds))					\
+	if (seconds != trunc(_seconds))					\
 		@throw [OFOutOfRangeException exception];		\
 									\
 	if (localtime_r(&seconds, &tm) == NULL)				\
 		@throw [OFOutOfRangeException exception];		\
 									\
@@ -73,11 +73,11 @@
 # ifdef OF_HAVE_THREADS
 #  define GMTIME_RET(field)						\
 	time_t seconds = (time_t)_seconds;				\
 	struct tm *tm;							\
 									\
-	if (seconds != floor(_seconds))					\
+	if (seconds != trunc(_seconds))					\
 		@throw [OFOutOfRangeException exception];		\
 									\
 	[mutex lock];							\
 									\
 	@try {								\
@@ -90,11 +90,11 @@
 	}
 #  define LOCALTIME_RET(field)						\
 	time_t seconds = (time_t)_seconds;				\
 	struct tm *tm;							\
 									\
-	if (seconds != floor(_seconds))					\
+	if (seconds != trunc(_seconds))					\
 		@throw [OFOutOfRangeException exception];		\
 									\
 	[mutex lock];							\
 									\
 	@try {								\
@@ -108,11 +108,11 @@
 # else
 #  define GMTIME_RET(field)						\
 	time_t seconds = (time_t)_seconds;				\
 	struct tm *tm;							\
 									\
-	if (seconds != floor(_seconds))					\
+	if (seconds != trunc(_seconds))					\
 		@throw [OFOutOfRangeException exception];		\
 									\
 	if ((tm = gmtime(&seconds)) == NULL)				\
 		@throw [OFOutOfRangeException exception];		\
 									\
@@ -119,11 +119,11 @@
 	return tm->field;
 #  define LOCALTIME_RET(field)						\
 	time_t seconds = (time_t)_seconds;				\
 	struct tm *tm;							\
 									\
-	if (seconds != floor(_seconds))					\
+	if (seconds != trunc(_seconds))					\
 		@throw [OFOutOfRangeException exception];		\
 									\
 	if ((tm = localtime(&seconds)) == NULL)				\
 		@throw [OFOutOfRangeException exception];		\
 									\
@@ -499,11 +499,11 @@
 	return [ret autorelease];
 }
 
 - (uint32_t)microsecond
 {
-	return (uint32_t)((_seconds - floor(_seconds)) * 1000000);
+	return (uint32_t)((_seconds - trunc(_seconds)) * 1000000);
 }
 
 - (uint8_t)second
 {
 	GMTIME_RET(tm_sec)
@@ -589,11 +589,11 @@
 	char *buffer;
 #else
 	wchar_t *buffer;
 #endif
 
-	if (seconds != floor(_seconds))
+	if (seconds != trunc(_seconds))
 		@throw [OFOutOfRangeException exception];
 
 #ifdef HAVE_GMTIME_R
 	if (gmtime_r(&seconds, &tm) == NULL)
 		@throw [OFOutOfRangeException exception];
@@ -649,11 +649,11 @@
 	char *buffer;
 #else
 	wchar_t *buffer;
 #endif
 
-	if (seconds != floor(_seconds))
+	if (seconds != trunc(_seconds))
 		@throw [OFOutOfRangeException exception];
 
 #ifdef HAVE_LOCALTIME_R
 	if (localtime_r(&seconds, &tm) == NULL)
 		@throw [OFOutOfRangeException exception];

Index: src/OFThread.m
==================================================================
--- src/OFThread.m
+++ src/OFThread.m
@@ -202,11 +202,11 @@
 	struct timespec rqtp;
 
 	rqtp.tv_sec = (time_t)timeInterval;
 	rqtp.tv_nsec = lrint((timeInterval - rqtp.tv_sec) * 1000000000);
 
-	if (rqtp.tv_sec != floor(timeInterval))
+	if (rqtp.tv_sec != trunc(timeInterval))
 		@throw [OFOutOfRangeException exception];
 
 	nanosleep(&rqtp, NULL);
 #elif defined(OF_AMIGAOS)
 	if (timeInterval * 50 > ULONG_MAX)
@@ -231,11 +231,11 @@
 	if (timeInterval > UINT_MAX)
 		@throw [OFOutOfRangeException exception];
 
 	sleep((unsigned int)timeInterval);
 	usleep((unsigned int)lrint(
-	    (timeInterval - floor(timeInterval)) * 1000000));
+	    (timeInterval - trunc(timeInterval)) * 1000000));
 #endif
 }
 
 + (void)sleepUntilDate: (OFDate *)date
 {

Index: utils/ofhttp/ProgressBar.m
==================================================================
--- utils/ofhttp/ProgressBar.m
+++ utils/ofhttp/ProgressBar.m
@@ -104,11 +104,11 @@
 	[of_stdout writeString: @"\r  ▕"];
 
 	for (size_t i = 0; i < (size_t)bars; i++)
 		[of_stdout writeString: @"█"];
 	if (bars < barWidth) {
-		float rem = bars - floorf(bars);
+		float rem = bars - truncf(bars);
 
 		if (rem >= 0.875)
 			[of_stdout writeString: @"▉"];
 		else if (rem >= 0.75)
 			[of_stdout writeString: @"▊"];