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-rw-r--r--math/complex.h28
1 files changed, 27 insertions, 1 deletions
diff --git a/math/complex.h b/math/complex.h
index 59ce30e..1ae4ec2 100644
--- a/math/complex.h
+++ b/math/complex.h
@@ -22,11 +22,15 @@
#ifndef _COMPLEX_H
#define _COMPLEX_H 1
-#include <features.h>
+#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
+#include <bits/libc-header-start.h>
/* Get general and ISO C99 specific information. */
#include <bits/mathdef.h>
+/* Gather machine-dependent _FloatN type support. */
+#include <bits/floatn.h>
+
__BEGIN_DECLS
/* We might need to add support for more compilers here. But since ISO
@@ -55,6 +59,10 @@ __BEGIN_DECLS
# define CMPLXL(x, y) __builtin_complex ((long double) (x), (long double) (y))
#endif
+#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# define CMPLXF128(x, y) __builtin_complex ((_Float128) (x), (_Float128) (y))
+#endif
+
/* The file <bits/cmathcalls.h> contains the prototypes for all the
actual math functions. These macros are used for those prototypes,
so we can easily declare each function as both `name' and `__name',
@@ -84,6 +92,24 @@ __BEGIN_DECLS
#undef _Mdouble_
#undef __MATH_PRECNAME
+#if (__HAVE_DISTINCT_FLOAT128 || (__HAVE_FLOAT128 && !defined _LIBC)) \
+ && __GLIBC_USE (IEC_60559_TYPES_EXT)
+# ifndef _Mfloat128_
+# define _Mfloat128_ _Float128
+# endif
+/* GCC < 7 requires extra convincing to expose a complex float128 type. */
+# ifdef __CFLOAT128
+# undef _Mdouble_complex_
+# define _Mdouble_complex_ __CFLOAT128
+# endif
+# define _Mdouble_ _Mfloat128_
+# define __MATH_PRECNAME(name) name##f128
+# include <bits/cmathcalls.h>
+# undef _Mdouble_
+# undef __MATH_PRECNAME
+# undef _Mdouble_complex_
+#endif
+
/* And the long double versions. It is non-critical to define them
here unconditionally since `long double' is required in ISO C99. */
#if !(defined __NO_LONG_DOUBLE_MATH && defined _LIBC) \