[PATCH] libstdc++: Fix 17_intro/names.cc on Solaris

[Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>]

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17_intro/names.cc and experimental/names.cc currently FAIL on Solaris

FAIL: 17_intro/names.cc (test for excess errors)
FAIL: experimental/names.cc (test for excess errors)

Excess errors:
/usr/include/sys/timespec_util.h:22: error: expected ')' before ';' token
/usr/include/stdlib.h:157: error: expected unqualified-id before '[' token
/usr/include/stdlib.h:157: error: expected ')' before '[' token

<sys/timespec_util.h> has

extern int timespeccompare(const struct timespec *l, const struct timespec *r);

while <stdlib.h> has

typedef struct drand48_data {
        unsigned int _initialised;
        unsigned short int x[3];
        unsigned short int a[3];
        unsigned int c;
        unsigned short lastx[3];
} drand48_data;

both of which are broken by defining r resp. x to ( in the testcase.

Fixed by undoing the defines.  Tested on i386-pc-solaris2.11,
sparc-sun-solaris2.11, and x86_64-pc-linux-gnu.

Ok for master?

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


2021-10-20  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	libstdc++-v3:
	* testsuite/17_intro/names.cc [__sun__] (r, x): Undef.



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# HG changeset patch
# Parent  46e494d20576c10260ec41a54607f36eb946dc2e
libstdc++: Fix 17_intro/names.cc on Solaris

diff --git a/libstdc++-v3/testsuite/17_intro/names.cc b/libstdc++-v3/testsuite/17_intro/names.cc
--- a/libstdc++-v3/testsuite/17_intro/names.cc
+++ b/libstdc++-v3/testsuite/17_intro/names.cc
@@ -251,6 +251,10 @@
 #undef p
 // See https://gcc.gnu.org/ml/libstdc++/2019-05/msg00175.html
 #undef ptr
+// <sys/timespec_util.h> uses this as parameter
+#undef r
+// <stdlib.h> uses this as member of drand48_data
+#undef x
 #endif
 
 #ifdef __VXWORKS__