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* [gcc r13-2675] libstdc++: Add comment to 17_intro/names.cc test
@ 2022-09-14 18:22 Jonathan Wakely
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From: Jonathan Wakely @ 2022-09-14 18:22 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:9a1bc4b463e61cd5bc5f169a08a420aae39a07f6
commit r13-2675-g9a1bc4b463e61cd5bc5f169a08a420aae39a07f6
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Wed Sep 14 14:16:25 2022 +0100
libstdc++: Add comment to 17_intro/names.cc test
libstdc++-v3/ChangeLog:
* testsuite/17_intro/names.cc: Explain why poison pragma can't
be used.
Diff:
---
libstdc++-v3/testsuite/17_intro/names.cc | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libstdc++-v3/testsuite/17_intro/names.cc b/libstdc++-v3/testsuite/17_intro/names.cc
index 86fb8f8999b..82e201c71b0 100644
--- a/libstdc++-v3/testsuite/17_intro/names.cc
+++ b/libstdc++-v3/testsuite/17_intro/names.cc
@@ -20,6 +20,8 @@
// Define macros for some common variables names that we must not use for
// naming variables, parameters etc. in the library.
+// N.B. we cannot use '#pragma GCC poison A' because that also prevents using
+// these names even as macro arguments, e.g. #define FOO(A) BAR(A)
#define A (
#define B (
#define C (
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