1 files changed, 14 insertions, 0 deletions
diff --git a/src/math/lrint.c b/src/math/lrint.c
index 16eaf7be..3ce1dd66 100644
--- a/src/math/lrint.c
+++ b/src/math/lrint.c
@@ -1,9 +1,23 @@
 # define TGSOURCE "lrint.c"
 #include "_tgmath.h"
 #include <math.h>
+#include "limits.h"
+#include "fenv.h"
 
 long int TGFN(lrint)(TYPE x)
 {
+	switch (fpclassify(x)) {
+	case FP_ZERO:
+		return 0;
+
+	case FP_INFINITE:
+		feraiseexcept(FE_INVALID);
+		return signbit(x) ? LONG_MIN : LONG_MAX;
+
+	default:
+		break;
+	}
+
 	return x;
 }