lib: Add mlibc

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 53 insertions, 0 deletions

diff --git a/lib/mlibc/options/ansi/generic/complex/cabs.c b/lib/mlibc/options/ansi/generic/complex/cabs.c
new file mode 100644
index 0000000..2750fab
--- /dev/null
+++ b/lib/mlibc/options/ansi/generic/complex/cabs.c
@@ -0,0 +1,53 @@
+/* $NetBSD: cabs.c,v 1.1 2007/08/20 16:01:30 drochner Exp $ */
+
+/*
+ * Written by Matthias Drochner <drochner@NetBSD.org>.
+ * Public domain.
+ *
+ * imported and modified include for newlib 2010/10/03 
+ * Marco Atzeri <marco_atzeri@yahoo.it>
+ */
+
+/*
+FUNCTION
+        <<cabs>>, <<cabsf>>---complex absolute-value
+
+INDEX
+        cabs
+INDEX
+        cabsf
+
+ANSI_SYNOPSIS
+       #include <complex.h>
+       double cabs(double complex <[z]>);
+       float cabsf(float complex <[z]>);
+
+
+DESCRIPTION
+        These functions compute compute the complex absolute value 
+        (also called norm, modulus, or magnitude) of <[z]>. 
+
+        <<cabsf>> is identical to <<cabs>>, except that it performs
+        its calculations on <<floats complex>>.
+
+RETURNS
+        The cabs functions return the complex absolute value.
+
+PORTABILITY
+        <<cabs>> and <<cabsf>> are ISO C99
+
+QUICKREF
+        <<cabs>> and <<cabsf>> are ISO C99
+
+*/
+
+
+#include <complex.h>
+#include <math.h>
+
+double
+cabs(double complex z)
+{
+
+	return hypot( creal(z), cimag(z) );
+}