lib: Add mlibc

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

1 files changed, 54 insertions, 0 deletions

diff --git a/lib/mlibc/options/ansi/generic/complex/creal.c b/lib/mlibc/options/ansi/generic/complex/creal.c
new file mode 100644
index 0000000..07bf96f
--- /dev/null
+++ b/lib/mlibc/options/ansi/generic/complex/creal.c
@@ -0,0 +1,54 @@
+/* $NetBSD: creal.c,v 1.2 2010/09/15 16:11:29 christos 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
+        <<creal>>, <<crealf>>---real part
+
+INDEX
+        creal
+INDEX
+        crealf
+
+ANSI_SYNOPSIS
+       #include <complex.h>
+       double creal(double complex <[z]>);
+       float crealf(float complex <[z]>);
+
+
+DESCRIPTION
+        These functions compute the real part of <[z]>.
+
+        <<crealf>> is identical to <<creal>>, except that it performs
+        its calculations on <<floats complex>>.
+
+RETURNS
+        The creal functions return the real part value.
+
+PORTABILITY
+        <<creal>> and <<crealf>> are ISO C99
+
+QUICKREF
+        <<creal>> and <<crealf>> are ISO C99
+
+*/
+
+
+#include <complex.h>
+
+#include "fdlibm.h"
+
+double
+creal(double complex z)
+{
+	double_complex w = { .z = z };
+
+	return (REAL_PART(w));
+}