1 /* $NetBSD: msg_385.c,v 1.1 2024/12/08 17:12:01 rillig Exp $ */ 2 # 3 "msg_385.c" 3 4 // Test for message: do-while macro '%.*s' ends with semicolon [385] 5 6 /* 7 * A function-like macro that consists of a do-while statement is intended to 8 * expand to a single statement, but without the trailing semicolon, as the 9 * semicolon is already provided by the calling site. When the macro expansion 10 * ends with a semicolon, there are two semicolons, which can lead to syntax 11 * errors. 12 */ 13 14 /* lint1-extra-flags: -X 351 */ 15 16 /* expect+1: warning: do-while macro 'wrong_stmt' ends with semicolon [385] */ 17 #define wrong_stmt() do { } while (0); 18 19 #define correct_stmt() do { } while (0) 20 21 /* expect+5: warning: do-while macro 'wrong_stmt_with_comment' ends with semicolon [385] */ 22 #define wrong_stmt_with_comment() do { } while (0); /* 23 a 24 b 25 c 26 */ 27 28 #define correct_stmt_with_comment() do { } while (0) /* 29 a 30 b 31 c 32 */ 33 34 /* The comment marker inside the string literal does not start a comment. */ 35 #define stmt_with_string() do { print("/*"); } while (0) 36 37 void 38 call_wrong_stmt(int x) 39 { 40 if (x > 0) 41 do { } while (0);; 42 /* expect+1: error: syntax error 'else' [249] */ 43 else 44 do { } while (0);; 45 } 46 47 void 48 call_correct_stmt(int x) 49 { 50 if (x < 0) 51 do { } while (0); 52 else 53 do { } while (0); 54 } 55