1/* { dg-do preprocess } */
2
3/* Test for proper handling of unary plus in #if.  */
4
5#if !(+1)
6#error Error	/* { dg-bogus "Error" "case !(+1)" } */
7#endif
8
9#if !+1
10#error Error	/* { dg-bogus "Error" "case !+1" } */
11#endif
12
13#if +1
14#else
15#error Error	/* { dg-bogus "Error" "case +1" } */
16#endif
17