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authorUlrich Drepper <drepper@redhat.com>2000-08-01 22:53:40 +0000
committerUlrich Drepper <drepper@redhat.com>2000-08-01 22:53:40 +0000
commit925e31d9c22c5cdf1d80d9a5683523efc729cfd1 (patch)
treed696a391cc553074f62453c5c633368e03dcbf34 /math
parent21cea68e865eb1b276fad12816028d58dc681ee4 (diff)
downloadglibc-925e31d9c22c5cdf1d80d9a5683523efc729cfd1.tar.gz
Update.
2000-08-01 Ulrich Drepper <drepper@redhat.com> Joseph S. Myers <jsm28@cam.ac.uk> * math/tgmath.h: Make standard compliant. Don't ask how. 2000-07-04 H.J. Lu <hjl@gnu.org> * elf/Makefile ($(inst_slibdir)/$(rtld-version-installed-name)): Use $(do-install-program) instead of "$(INSTALL_PROGRAM) $< $@.new". ($(inst_slibdir)/$(rtld-installed-name)): Use $(make-shlib-link) only. 2000-07-30 Maciej W. Rozycki <macro@ds2.pg.gda.pl> * include/features.h (_XOPEN_SOURCE): Update the explanation. (__USE_LARGEFILE): Add an explanation. (_POSIX_C_SOURCE): Define to 2 only if _XOPEN_SOURCE < 500. (__USE_XOPEN2K): Define whenever _XOPEN_SOURCE >= 600. 2000-08-01 Ulrich Drepper <drepper@redhat.com> * libio/Makefile: Enable exception handling for genops, wgenops, fileops, and wfileops.
Diffstat (limited to 'math')
-rw-r--r--math/tgmath.h83
1 files changed, 57 insertions, 26 deletions
diff --git a/math/tgmath.h b/math/tgmath.h
index fc2fdcab37..ccc304ca62 100644
--- a/math/tgmath.h
+++ b/math/tgmath.h
@@ -36,12 +36,31 @@
#if __GNUC_PREREQ (2, 7)
+/* This is ugly but unless gcc gets appropriate builtins we have to do
+ something like this. Don't ask how it works. */
+
+/* 1 if 'type' is a floating type, 0 if 'type' is an integer type.
+ Allows for _Bool. Expands to an integer constant expression. */
+#define __floating_type(type) (((type) 0.25) && ((type) 0.25 - 1))
+
+/* The tgmath real type for T, where E is 0 if T is an integer type and
+ 1 for a floating type. */
+#define __tgmath_real_type_sub(T, E) \
+ __typeof__(*(0 ? (__typeof__(0 ? (double *)0 : (void *)(E)))0 \
+ : (__typeof__(0 ? (T *)0 : (void *)(!(E))))0))
+
+/* The tgmath real type of EXPR. */
+#define __tgmath_real_type(expr) \
+ __tgmath_real_type_sub(__typeof__(expr), __floating_type(__typeof__(expr)))
+
+
/* We have two kinds of generic macros: to support functions which are
only defined on real valued parameters and those which are defined
for complex functions as well. */
# define __TGMATH_UNARY_REAL_ONLY(Val, Fct) \
- (__extension__ ({ __typeof__ (Val) __tgmres; \
- if (sizeof (Val) == sizeof (double)) \
+ (__extension__ ({ __tgmath_real_type (Val) __tgmres; \
+ if (sizeof (Val) == sizeof (double) \
+ || __builtin_classify_type (Val) != 8) \
__tgmres = Fct (Val); \
else if (sizeof (Val) == sizeof (float)) \
__tgmres = Fct##f (Val); \
@@ -50,8 +69,9 @@
__tgmres; }))
# define __TGMATH_BINARY_FIRST_REAL_ONLY(Val1, Val2, Fct) \
- (__extension__ ({ __typeof__ (Val1) __tgmres; \
- if (sizeof (Val1) == sizeof (double)) \
+ (__extension__ ({ __tgmath_real_type (Val1) __tgmres; \
+ if (sizeof (Val1) == sizeof (double) \
+ || __builtin_classify_type (Val) != 8) \
__tgmres = Fct (Val1, Val2); \
else if (sizeof (Val1) == sizeof (float)) \
__tgmres = Fct##f (Val1, Val2); \
@@ -60,38 +80,44 @@
__tgmres; }))
# define __TGMATH_BINARY_REAL_ONLY(Val1, Val2, Fct) \
- (__extension__ ({ __typeof__ ((Val1) + (Val2)) __tgmres; \
- if (sizeof (Val1) > sizeof (double) \
- || sizeof (Val2) > sizeof (double)) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2)) __tgmres; \
+ if ((sizeof (Val1) > sizeof (double) \
+ || sizeof (Val2) > sizeof (double)) \
+ && __builtin_classify_type (Val) == 8) \
__tgmres = Fct##l (Val1, Val2); \
else if (sizeof (Val1) == sizeof (double) \
- || sizeof (Val2) == sizeof (double)) \
+ || sizeof (Val2) == sizeof (double) \
+ || __builtin_classify_type (Val) != 8) \
__tgmres = Fct (Val1, Val2); \
else \
__tgmres = Fct (Val1, Val2); \
__tgmres; }))
# define __TGMATH_TERNARY_FIRST_SECOND_REAL_ONLY(Val1, Val2, Val3, Fct) \
- (__extension__ ({ __typeof__ ((Val1) + (Val2)) __tgmres; \
- if (sizeof (Val1) > sizeof (double) \
- || sizeof (Val2) > sizeof (double)) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2)) __tgmres; \
+ if ((sizeof (Val1) > sizeof (double) \
+ || sizeof (Val2) > sizeof (double)) \
+ && __builtin_classify_type (Val) == 8) \
__tgmres = Fct##l (Val1, Val2, Val3); \
else if (sizeof (Val1) == sizeof (double) \
- || sizeof (Val2) == sizeof (double)) \
+ || sizeof (Val2) == sizeof (double) \
+ || __builtin_classify_type (Val) != 8) \
__tgmres = Fct (Val1, Val2, Val3); \
else \
__tgmres = Fct (Val1, Val2, Val3); \
__tgmres; }))
# define __TGMATH_TERNARY_REAL_ONLY(Val1, Val2, Val3, Fct) \
- (__extension__ ({ __typeof__ ((Val1) + (Val2) + (Val3)) __tgmres; \
- if (sizeof (Val1) > sizeof (double) \
- || sizeof (Val2) > sizeof (double) \
- || sizeof (Val3) > sizeof (double)) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2) + (Val3)) __tgmres;\
+ if ((sizeof (Val1) > sizeof (double) \
+ || sizeof (Val2) > sizeof (double) \
+ || sizeof (Val3) > sizeof (double)) \
+ && __builtin_classify_type (Val) == 8) \
__tgmres = Fct##l (Val1, Val2, Val3); \
else if (sizeof (Val1) == sizeof (double) \
|| sizeof (Val2) == sizeof (double) \
- || sizeof (Val3) == sizeof (double)) \
+ || sizeof (Val3) == sizeof (double) \
+ || __builtin_classify_type (Val) != 8) \
__tgmres = Fct (Val1, Val2, Val3); \
else \
__tgmres = Fct (Val1, Val2, Val3); \
@@ -100,15 +126,17 @@
/* XXX This definition has to be changed as soon as the compiler understands
the imaginary keyword. */
# define __TGMATH_UNARY_REAL_IMAG(Val, Fct, Cfct) \
- (__extension__ ({ __typeof__ (Val) __tgmres; \
- if (sizeof (__real__ (Val)) > sizeof (double)) \
+ (__extension__ ({ __tgmath_real_type (Val) __tgmres; \
+ if (sizeof (__real__ (Val)) > sizeof (double) \
+ && __builtin_classify_type (Val) == 8) \
{ \
if (sizeof (__real__ (Val)) == sizeof (Val)) \
__tgmres = Fct##l (Val); \
else \
__tgmres = Cfct##l (Val); \
} \
- else if (sizeof (__real__ (Val)) == sizeof (double)) \
+ else if (sizeof (__real__ (Val)) == sizeof (double) \
+ || __builtin_classify_type (Val) != 8) \
{ \
if (sizeof (__real__ (Val)) == sizeof (Val)) \
__tgmres = Fct (Val); \
@@ -127,8 +155,9 @@
/* XXX This definition has to be changed as soon as the compiler understands
the imaginary keyword. */
# define __TGMATH_UNARY_IMAG_ONLY(Val, Fct) \
- (__extension__ ({ __typeof__ (Val) __tgmres; \
- if (sizeof (Val) == sizeof (__complex__ double)) \
+ (__extension__ ({ __tgmath_real_type (Val) __tgmres; \
+ if (sizeof (Val) == sizeof (__complex__ double) \
+ || __builtin_classify_type (Val) != 8) \
__tgmres = Fct (Val); \
else if (sizeof (Val) == sizeof (__complex__ float)) \
__tgmres = Fct##f (Val); \
@@ -139,9 +168,10 @@
/* XXX This definition has to be changed as soon as the compiler understands
the imaginary keyword. */
# define __TGMATH_BINARY_REAL_IMAG(Val1, Val2, Fct, Cfct) \
- (__extension__ ({ __typeof__ ((Val1) + (Val2)) __tgmres; \
- if (sizeof (__real__ (Val1)) > sizeof (double) \
- || sizeof (__real__ (Val2)) > sizeof (double)) \
+ (__extension__ ({ __tgmath_real_type ((Val1) + (Val2)) __tgmres; \
+ if ((sizeof (__real__ (Val1)) > sizeof (double) \
+ || sizeof (__real__ (Val2)) > sizeof (double)) \
+ && __builtin_classify_type (Val) == 8) \
{ \
if (sizeof (__real__ (Val1)) == sizeof (Val1) \
&& sizeof (__real__ (Val2)) == sizeof (Val2)) \
@@ -150,7 +180,8 @@
__tgmres = Cfct##l (Val1, Val2); \
} \
else if (sizeof (__real__ (Val1)) == sizeof (double) \
- || sizeof (__real__ (Val2)) == sizeof(double))\
+ || sizeof (__real__ (Val2)) == sizeof(double) \
+ || __builtin_classify_type (Val) != 8) \
{ \
if (sizeof (__real__ (Val1)) == sizeof (Val1) \
&& sizeof (__real__ (Val2)) == sizeof (Val2)) \