openmp: Fix next variable initialization in cp_parser_omp_clause_linear [PR123128]

Apparently clang++ emits error on int *p = ((unsigned long) 0); while g++
accepts it without any diagnostics even with -pedantic-errors -W -Wall.
Dunno which is right, anyway, I meant to initialize with NULL, not
UNKNOWN_LOCATION.

2025-12-15  Jakub Jelinek  <jakub@redhat.com>

	PR c++/123128
	* parser.cc (cp_parser_omp_clause_linear): Initialize next to NULL
	rather than UNKNOWN_LOCATION.

diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc
index 214dababeb5551e50d85e44093b010c4cf961730..d6e3298c144e8fe0fea055c29aae2d46f2d5e27e 100644 (file)
--- a/gcc/cp/parser.cc
+++ b/gcc/cp/parser.cc
@@ -43084,7 +43084,7 @@ cp_parser_omp_clause_linear (cp_parser *parser, tree list,
   else
     {
       size_t end = cp_parser_skip_balanced_tokens (parser, 1);
-      cp_token *next = UNKNOWN_LOCATION;
+      cp_token *next = NULL;
       if (end > 1
          && cp_lexer_nth_token_is (parser->lexer, end - 1, CPP_CLOSE_PAREN))
        {