tree 4d9b583c7133a103c323aa9271fa6507ebb0de54
parent 5c0d171f67d082c353ddc319859111d3b9126c17
author Lewis Hyatt <lhyatt@gmail.com> 1667419476 -0400
committer Lewis Hyatt <lhyatt@gmail.com> 1669070839 -0500

libcpp: Fix paste error with unknown pragma after macro expansion

In directives.cc, do_pragma() contains logic to handle a case such as the new
testcase pragma-omp-unknown.c, where an unknown pragma was the result of macro
expansion (for pragma namespaces that permit expansion). This no longer works
correctly as shown by the testcase, fixed by adding PREV_WHITE to the flags on
the second token to prevent an unwanted paste.  Also fixed the memory leak,
since the temporary tokens are pushed on their own context, nothing prevents
freeing of the buffer that holds them when the context is eventually popped.

libcpp/ChangeLog:

	* directives.cc (do_pragma): Fix memory leak in token buffer.  Fix
	unwanted paste between two tokens.

gcc/testsuite/ChangeLog:

	* c-c++-common/gomp/pragma-omp-unknown.c: New test.