Author: ed
Date: Sat May 25 18:55:55 2013
New Revision: 250990
URL: http://svnweb.freebsd.org/changeset/base/250990
Log:
Add C11 macros CMPLX(), CMPLXF() and CMPLXL().
Clang allows us to initialize complex numbers using an array
initializer, casted to a complex type. GCC has a builtin called
__builtin_complex().
Modified:
head/include/complex.h
Modified: head/include/complex.h
==============================================================================
--- head/include/complex.h Sat May 25 18:04:24 2013 (r250989)
+++ head/include/complex.h Sat May 25 18:55:55 2013 (r250990)
@@ -46,6 +46,18 @@ _Static_assert(__generic(_Complex_I, flo
#define complex _Complex
#define I _Complex_I
+#if __ISO_C_VISIBLE >= 2011
+#ifdef __clang__
+#define CMPLX(x, y) ((double complex){ x, y })
+#define CMPLXF(x, y) ((float complex){ x, y })
+#define CMPLXL(x, y) ((long double complex){ x, y })
+#elif __GNUC_PREREQ__(4, 7)
+#define CMPLX(x, y) __builtin_complex((double)(x), (double)(y))
+#define CMPLXF(x, y) __builtin_complex((float)(x), (float)(y))
+#define CMPLXL(x, y) __builtin_complex((long double)(x), (long
double)(y))
+#endif
+#endif /* __ISO_C_VISIBLE >= 2011 */
+
__BEGIN_DECLS
double cabs(double complex);
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