1 /* $NetBSD: expr_precedence.c,v 1.2 2021/07/15 17:20:58 rillig Exp $ */ 2 # 3 "expr_precedence.c" 3 4 /* 5 * Tests for the precedence among operators. 6 */ 7 8 int var; 9 10 /* 11 * An initializer needs an assignment-expression; the comma must be 12 * interpreted as a separator, not an operator. 13 */ 14 /* expect+1: error: syntax error '4' [249] */ 15 int init_error = 3, 4; 16 17 /* expect+1: error: non-constant initializer [177] */ 18 int init_syntactically_ok = var = 1 ? 2 : 3; 19 20 /* 21 * The arguments of __attribute__ must be constant-expression, as assignments 22 * don't make sense at that point. 23 */ 24 void __attribute__((format(printf, 25 /* expect+2: error: 'var' undefined [99] */ /* XXX: why? */ 26 /* expect+1: syntax error '=' [249] */ 27 var = 1, 28 /* Syntactically ok, must be a constant expression though. */ 29 var > 0 ? 2 : 1))) 30 my_printf(const char *, ...); 31