Eliminate 'ISO C++17 does not allow register specifier' gcc warning

* tools/setjmp_t.c [__cplusplus>=201703L] (main): Do not use register specifier for x local variable.
ivmai · Mar 31, 2023 · be7c47d · be7c47d
1 parent 7d79898
commit be7c47d
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/tools/setjmp_t.c b/tools/setjmp_t.c
@@ -87,7 +87,10 @@ int main(void)
     volatile word sp;
     unsigned ps = GETPAGESIZE();
     JMP_BUF b;
-    register int x = (int)strlen(a_str); /* 1, slightly disguised */
+#   if !defined(__cplusplus) || __cplusplus < 201703L /* before c++17 */
+      register
+#   endif
+      int x = (int)strlen(a_str); /* 1, slightly disguised */
     static volatile int y = 0;
 
     sp = (word)(&sp);