From 9a1bc4b463e61cd5bc5f169a08a420aae39a07f6 Mon Sep 17 00:00:00 2001 From: Jonathan Wakely Date: Wed, 14 Sep 2022 14:16:25 +0100 Subject: [PATCH] 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. --- 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 86fb8f8999b1..82e201c71b0c 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 ( -- 2.47.2