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authorNick Clifton <nickc@redhat.com>2015-02-06 16:14:04 +0000
committerNick Clifton <nickc@redhat.com>2015-02-06 16:14:04 +0000
commitb9e7cd9a846cf584049a719bbd0e4cabe3c50bea (patch)
tree33bb86b0a39693a67106d740062bc5975285b87f /newlib/libc/include/ieeefp.h
parentdb004c5d7af31d9a56321d7780621b1df6a1559e (diff)
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* libc/include/complex.h (cabsl): Add prototype.
(cimagl): Add prototype. (creall): Add prototype. * libc/include/ieeefp.h: Include float.h. (EXT_EXPBITS, EXT_FRACHBITS, EXT_FRACLBITS) (EXT_EXP_INFNAN. EXT_EXP_BIAS, EXT_FRACBITS): Define. (struct ieee_ext, union ieee_ext_u): New types for long double support. * libc/include/math.h (finitel): Add prototype. (hypotl): Add prototype. (sqrtl): Add prototype. * libm/common/Makefile.am (lsrc): Add sl_finite.c. * libm/common/Makefile.in: Regenerate. * libm/common/fdlibm.h (__ieee754_hypotl): Add prototype. * libm/common/hypotl.c (hypotl): Add implementation for when long double is larger than double. * libm/common/sqrtl.c (sqrtl): Likewise. * libm/common/sl_finite.c: New file. Adds implementation of the finitel function. * libm/complex/Makefile.am (lsrc): Define. (libcomplex_la_SOURCES): Add lsrc. (lib_a_SOURCES): Add lsrc. * libm/complex/Makefile.in: Regenerate. * libm/complex/cabs.c: Add documentation of cabsl function. * libm/complex/cimag.c: Add documentation of cimagl function. * libm/complex/creall.c: Add documentation of creall function. * libm/complex/cabsl.c: New file. Adds implementation of the cabsl function. * libm/complex/cimagl.c: New file. Adds implementation of the cimagl function. * libm/complex/creall.c: New file. Adds implementation of the creall function. * libm/math/Makefile.am (lsrc): Define. (libmath_la_SOURCES): Add lsrc. (lib_a_SOURCES): Add lsrc. * libm/math/Makefile.in: Regenerate. * libm/math/el_hypot.c: New file. Adds implementation of the __ieee754_hypotl function.
Diffstat (limited to 'newlib/libc/include/ieeefp.h')
-rw-r--r--newlib/libc/include/ieeefp.h73
1 files changed, 65 insertions, 8 deletions
diff --git a/newlib/libc/include/ieeefp.h b/newlib/libc/include/ieeefp.h
index 0b06fb786..9eb274d86 100644
--- a/newlib/libc/include/ieeefp.h
+++ b/newlib/libc/include/ieeefp.h
@@ -4,11 +4,12 @@
#include "_ansi.h"
#include <machine/ieeefp.h>
+#include <float.h>
_BEGIN_STD_C
/* FIXME FIXME FIXME:
- Neither of __ieee_{float,double}_shape_tape seem to be used anywhere
+ Neither of __ieee_{float,double}_shape_type seem to be used anywhere
except in libm/test. If that is the case, please delete these from here.
If that is not the case, please insert documentation here describing why
they're needed. */
@@ -46,9 +47,7 @@ typedef union
long aslong[2];
} __ieee_double_shape_type;
-#endif
-
-#ifdef __IEEE_LITTLE_ENDIAN
+#elif defined __IEEE_LITTLE_ENDIAN
typedef union
{
@@ -92,7 +91,7 @@ typedef union
} __ieee_double_shape_type;
-#endif
+#endif /* __IEEE_LITTLE_ENDIAN */
#ifdef __IEEE_BIG_ENDIAN
@@ -118,9 +117,7 @@ typedef union
} __ieee_float_shape_type;
-#endif
-
-#ifdef __IEEE_LITTLE_ENDIAN
+#elif defined __IEEE_LITTLE_ENDIAN
typedef union
{
@@ -144,10 +141,70 @@ typedef union
} __ieee_float_shape_type;
+#endif /* __IEEE_LITTLE_ENDIAN */
+
+#ifndef _LDBL_EQ_DBL
+
+#ifndef LDBL_MANT_DIG
+#error "LDBL_MANT_DIG not defined - should be found in float.h"
+
+#elif LDBL_MANT_DIG == DBL_MANT_DIG
+#error "double and long double are the same size but LDBL_EQ_DBL is not defined"
+
+#elif LDBL_MANT_DIG == 53
+/* This happens when doubles are 32-bits and long doubles are 64-bits. */
+#define EXT_EXPBITS 11
+#define EXT_FRACHBITS 20
+#define EXT_FRACLBITS 32
+#define __ieee_ext_field_type unsigned long
+
+#elif LDBL_MANT_DIG == 64
+#define EXT_EXPBITS 15
+#define EXT_FRACHBITS 32
+#define EXT_FRACLBITS 32
+#define __ieee_ext_field_type unsigned int
+
+#elif LDBL_MANT_DIG == 65
+#define EXT_EXPBITS 15
+#define EXT_FRACHBITS 32
+#define EXT_FRACLBITS 32
+#define __ieee_ext_field_type unsigned int
+
+#elif LDBL_MANT_DIG == 112
+#define EXT_EXPBITS 15
+#define EXT_FRACHBITS 48
+#define EXT_FRACLBITS 64
+#define __ieee_ext_field_type unsigned long long
+
+#elif LDBL_MANT_DIG == 113
+#define EXT_EXPBITS 15
+#define EXT_FRACHBITS 48
+#define EXT_FRACLBITS 64
+#define __ieee_ext_field_type unsigned long long
+
+#else
+#error Unsupported value for LDBL_MANT_DIG
#endif
+#define EXT_EXP_INFNAN ((1 << EXT_EXPBITS) - 1) /* 32767 */
+#define EXT_EXP_BIAS ((1 << (EXT_EXPBITS - 1)) - 1) /* 16383 */
+#define EXT_FRACBITS (EXT_FRACLBITS + EXT_FRACHBITS)
+
+typedef struct ieee_ext
+{
+ __ieee_ext_field_type ext_fracl : EXT_FRACLBITS;
+ __ieee_ext_field_type ext_frach : EXT_FRACHBITS;
+ __ieee_ext_field_type ext_exp : EXT_EXPBITS;
+ __ieee_ext_field_type ext_sign : 1;
+} ieee_ext;
+typedef union ieee_ext_u
+{
+ long double extu_ld;
+ struct ieee_ext extu_ext;
+} ieee_ext_u;
+#endif /* ! _LDBL_EQ_DBL */
/* FLOATING ROUNDING */