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authorTulio Magno Quites Machado Filho <tuliom@linux.ibm.com>2018-06-18 21:11:26 -0300
committerPaul E. Murphy <murphyp@linux.vnet.ibm.com>2020-02-20 17:11:06 -0600
commit77ad97356caacfa5a54236791c4f1f68b689e915 (patch)
treec3edb07460e4c7a79c0bc4ad76121c7d98cb2516 /math
parentb790c8c2ed5d5a51026203ccb3c46a3e95526d6b (diff)
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Undefine redirections after long double definition on __LDBL_COMPAT [BZ #23294]
After defining the long double redirections to double, __MATHDECL_1 has
to be redefined to its previous state in order to avoid redirecting all
subsequent types.
Diffstat (limited to 'math')
-rw-r--r--math/complex.h10
-rw-r--r--math/math.h18
2 files changed, 22 insertions, 6 deletions
diff --git a/math/complex.h b/math/complex.h
index d63005bec6..42f3fd7517 100644
--- a/math/complex.h
+++ b/math/complex.h
@@ -98,8 +98,10 @@ __BEGIN_DECLS
 #define __MATHDECL(type, function, args) \
   __MATHDECL_1(type, function, args); \
   __MATHDECL_1(type, __CONCAT(__,function), args)
-#define __MATHDECL_1(type, function, args) \
+#define __MATHDECL_1_IMPL(type, function, args) \
   extern type __MATH_PRECNAME(function) args __THROW
+#define __MATHDECL_1(type, function, args) \
+  __MATHDECL_1_IMPL(type, function, args)
 
 #define _Mdouble_ 		double
 #define __MATH_PRECNAME(name)	name
@@ -127,6 +129,11 @@ __BEGIN_DECLS
 # define _Mdouble_ 		long double
 # define __MATH_PRECNAME(name)	name##l
 # include <bits/cmathcalls.h>
+# if defined __LDBL_COMPAT
+#  undef __MATHDECL_1
+#  define __MATHDECL_1(type, function, args) \
+  __MATHDECL_1_IMPL(type, function, args)
+# endif
 #endif
 #undef	_Mdouble_
 #undef	__MATH_PRECNAME
@@ -215,6 +222,7 @@ __BEGIN_DECLS
 # undef _Mdouble_complex_
 #endif
 
+#undef	__MATHDECL_1_IMPL
 #undef	__MATHDECL_1
 #undef	__MATHDECL
 #undef	__MATHCALL
diff --git a/math/math.h b/math/math.h
index fb211bb00b..e13b3f3a29 100644
--- a/math/math.h
+++ b/math/math.h
@@ -279,8 +279,13 @@ enum
 #define __MATHDECLX(type, function,suffix, args, attrib) \
   __MATHDECL_1(type, function,suffix, args) __attribute__ (attrib); \
   __MATHDECL_1(type, __CONCAT(__,function),suffix, args) __attribute__ (attrib)
-#define __MATHDECL_1(type, function,suffix, args) \
+#define __MATHDECL_1_IMPL(type, function, suffix, args) \
   extern type __MATH_PRECNAME(function,suffix) args __THROW
+#define __MATHDECL_1(type, function, suffix, args) \
+  __MATHDECL_1_IMPL(type, function, suffix, args)
+
+#define __MATHREDIR(type, function, suffix, args, to) \
+  extern type __REDIRECT_NTH (__MATH_PRECNAME (function, suffix), args, to)
 
 #define _Mdouble_		double
 #define __MATH_PRECNAME(name,r)	__CONCAT(name,r)
@@ -331,11 +336,8 @@ extern long double __REDIRECT_NTH (nexttowardl,
 #   endif
 
 #   undef __MATHDECL_1
-#   define __MATHDECL_2(type, function,suffix, args, alias) \
-  extern type __REDIRECT_NTH(__MATH_PRECNAME(function,suffix), \
-			     args, alias)
 #   define __MATHDECL_1(type, function,suffix, args) \
-  __MATHDECL_2(type, function,suffix, args, __CONCAT(function,suffix))
+  __MATHREDIR(type, function, suffix, args, __CONCAT(function,suffix))
 #  endif
 
 /* Include the file of declarations again, this time using `long double'
@@ -353,6 +355,11 @@ extern long double __REDIRECT_NTH (nexttowardl,
 #  undef __MATH_DECLARING_DOUBLE
 #  undef __MATH_DECLARING_FLOATN
 
+#  if defined __LDBL_COMPAT
+#   undef __MATHDECL_1
+#   define __MATHDECL_1(type, function, suffix, args) \
+  __MATHDECL_1_IMPL(type, function, suffix, args)
+#  endif
 # endif /* !(__NO_LONG_DOUBLE_MATH && _LIBC) || __LDBL_COMPAT */
 
 #endif	/* Use ISO C99.  */
@@ -479,6 +486,7 @@ extern long double __REDIRECT_NTH (nexttowardl,
 # undef __MATH_DECLARING_FLOATN
 #endif /* __HAVE_DISTINCT_FLOAT128X || (__HAVE_FLOAT128X && !_LIBC).  */
 
+#undef	__MATHDECL_1_IMPL
 #undef	__MATHDECL_1
 #undef	__MATHDECL
 #undef	__MATHCALL