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-rw-r--r--src/math/scalbn.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/src/math/scalbn.c b/src/math/scalbn.c
index c9c7af80..003141e3 100644
--- a/src/math/scalbn.c
+++ b/src/math/scalbn.c
@@ -10,8 +10,10 @@ double scalbn(double x, int n)
 		if (n > 1023) {
 			x *= 0x1p1023;
 			n -= 1023;
-			if (n > 1023)
-				return x * 0x1p1023;
+			if (n > 1023) {
+				STRICT_ASSIGN(double, x, x * 0x1p1023);
+				return x;
+			}
 		}
 	} else if (n < -1022) {
 		x *= 0x1p-1022;
@@ -19,10 +21,13 @@ double scalbn(double x, int n)
 		if (n < -1022) {
 			x *= 0x1p-1022;
 			n += 1022;
-			if (n < -1022)
-				return x * 0x1p-1022;
+			if (n < -1022) {
+				STRICT_ASSIGN(double, x, x * 0x1p-1022);
+				return x;
+			}
 		}
 	}
 	INSERT_WORDS(scale, (uint32_t)(0x3ff+n)<<20, 0);
-	return x * scale;
+	STRICT_ASSIGN(double, x, x * scale);
+	return x;
 }