uclibc: add the trunc function

SVN-Revision: 14014

uclibc: add the trunc function
ff55a797 · Felix Fietkau · 087a2bc1 · ff55a797
Commit ff55a797 authored 16 years ago by Felix Fietkau
--- a/toolchain/uClibc/patches/210-trunc.patch
+++ b/toolchain/uClibc/patches/210-trunc.patch
+--- a/libm/s_floor.c
+++ b/libm/s_floor.c
+@@ -81,3 +81,18 @@ libm_hidden_proto(floor)
+ 	return x;
+ }
+ libm_hidden_def(floor)
+
+
+libm_hidden_proto(trunc)
+double
+trunc(double x)
+{
+	if (!finite (x))
+		return x;
+
+	if (x < 0.0)
+		return - floor (-x);
+	else
+		return floor (x);
+}
+libm_hidden_def(trunc)