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msg_379.c revision 1.1 
      1 /*	$NetBSD: msg_379.c,v 1.1 2024/05/11 15:53:38 rillig Exp $	*/
      2 # 3 "msg_379.c"
      3 
      4 // Test for message: comparing integer '%s' to floating point constant %Lg [379]
      5 
      6 /*
      7  * Comparing an integer expression to a floating point constant mixes
      8  * different kinds of types.  This mixture is more complicated than necessary,
      9  * thus confusing human readers.
     10  *
     11  * The compilers are fine with this kind of expression: GCC treats the
     12  * constant as an integer even at -O0 while Clang needs at least -O.
     13  */
     14 
     15 /* lint1-extra-flags: -X 351 */
     16 
     17 int
     18 comparisons(int x)
     19 {
     20 	if (3 > 123.0)
     21 		/* expect+1: warning: statement not reached [193] */
     22 		return 0;
     23 	/* expect+1: warning: comparing integer 'int' to floating point constant 123 [379] */
     24 	if (x > 123.0)
     25 		return 1;
     26 
     27 	// Yoda-style comparisons are unusual enough to not warn about them.
     28 	if (123.0 > x)
     29 		return 2;
     30 	return 3;
     31 }
     32