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-rw-r--r--newlib/libm/mathfp/sf_log10.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/newlib/libm/mathfp/sf_log10.c b/newlib/libm/mathfp/sf_log10.c
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index 00000000000..444e535e0f9
--- /dev/null
+++ b/newlib/libm/mathfp/sf_log10.c
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+
+/* @(#)z_log10f.c 1.0 98/08/13 */
+/******************************************************************
+ * Logarithm
+ *
+ * Input:
+ * x - floating point value
+ *
+ * Output:
+ * logarithm of x
+ *
+ * Description:
+ * This routine returns the logarithm of x (base 10).
+ *
+ *****************************************************************/
+
+#include "fdlibm.h"
+#include "zmath.h"
+
+float
+_DEFUN (log10f, (float),
+ float x)
+{
+ return (logarithmf (x, 1));
+}
+
+#ifdef _DOUBLE_IS_32BITS
+
+double log10 (double x)
+{
+ return (double) log10f ((float) x);
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */