1 /* Test for commas in constant expressions in #if: not permitted in C90 2 but permitted in unevaluated subexpressions in C99. */ 3 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */ 4 /* { dg-do preprocess } */ 5 /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */ 6 7 #if (1, 2) /* { dg-error "comma" "evaluated comma" } */ 8 #endif 9 10 #if 1 || (1, 2) 11 #endif 12