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-rw-r--r--newlib/libm/mathfp/sf_log.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/newlib/libm/mathfp/sf_log.c b/newlib/libm/mathfp/sf_log.c
new file mode 100644
index 00000000000..b746d444f63
--- /dev/null
+++ b/newlib/libm/mathfp/sf_log.c
@@ -0,0 +1,34 @@
+
+/* @(#)z_logf.c 1.0 98/08/13 */
+/******************************************************************
+ * Logarithm
+ *
+ * Input:
+ * x - floating point value
+ *
+ * Output:
+ * natural logarithm of x
+ *
+ * Description:
+ * This routine returns the natural logarithm of x.
+ *
+ *****************************************************************/
+
+#include "fdlibm.h"
+#include "zmath.h"
+
+float
+_DEFUN (logf, (float),
+ float x)
+{
+ return (logarithmf (x, 0));
+}
+
+#ifdef _DOUBLE_IS_32BITS
+
+double log (double x)
+{
+ return (double) logf ((float) x);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */