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cond-op-and.mk revision 1.7 
      1  1.7  rillig # $NetBSD: cond-op-and.mk,v 1.7 2023/06/01 20:56:35 rillig Exp $
      2  1.1  rillig #
      3  1.2  rillig # Tests for the && operator in .if conditions.
      4  1.1  rillig 
      5  1.3  rillig .if 0 && 0
      6  1.5  rillig .  error
      7  1.3  rillig .endif
      8  1.3  rillig 
      9  1.3  rillig .if 1 && 0
     10  1.5  rillig .  error
     11  1.3  rillig .endif
     12  1.3  rillig 
     13  1.3  rillig .if 0 && 1
     14  1.5  rillig .  error
     15  1.3  rillig .endif
     16  1.3  rillig 
     17  1.3  rillig .if !(1 && 1)
     18  1.5  rillig .  error
     19  1.3  rillig .endif
     20  1.3  rillig 
     21  1.6  rillig 
     22  1.3  rillig # The right-hand side is not evaluated since the left-hand side is already
     23  1.3  rillig # false.
     24  1.3  rillig .if 0 && ${UNDEF}
     25  1.3  rillig .endif
     26  1.1  rillig 
     27  1.6  rillig # When an outer condition makes the inner '&&' condition irrelevant, neither
     28  1.6  rillig # of its operands must be evaluated.
     29  1.6  rillig #
     30  1.6  rillig .if 1 || (${UNDEF} && ${UNDEF})
     31  1.6  rillig .endif
     32  1.6  rillig 
     33  1.6  rillig # Test combinations of outer '||' with inner '&&', to ensure that the operands
     34  1.6  rillig # of the inner '&&' are only evaluated if necessary.
     35  1.6  rillig DEF=	defined
     36  1.7  rillig # expect+1: Malformed conditional (0 || (${DEF} && ${UNDEF})
     37  1.6  rillig .if 0 || (${DEF} && ${UNDEF})
     38  1.6  rillig .endif
     39  1.6  rillig .if 0 || (!${DEF} && ${UNDEF})
     40  1.6  rillig .endif
     41  1.7  rillig # expect+1: Malformed conditional (0 || (${UNDEF} && ${UNDEF})
     42  1.6  rillig .if 0 || (${UNDEF} && ${UNDEF})
     43  1.6  rillig .endif
     44  1.7  rillig # expect+1: Malformed conditional (0 || (!${UNDEF} && ${UNDEF})
     45  1.6  rillig .if 0 || (!${UNDEF} && ${UNDEF})
     46  1.6  rillig .endif
     47  1.6  rillig .if 1 || (${DEF} && ${UNDEF})
     48  1.6  rillig .endif
     49  1.6  rillig .if 1 || (!${DEF} && ${UNDEF})
     50  1.6  rillig .endif
     51  1.6  rillig .if 1 || (${UNDEF} && ${UNDEF})
     52  1.6  rillig .endif
     53  1.6  rillig .if 1 || (!${UNDEF} && ${UNDEF})
     54  1.6  rillig .endif
     55  1.6  rillig 
     56  1.6  rillig 
     57  1.4  rillig # The && operator may be abbreviated as &.  This is not widely known though
     58  1.4  rillig # and is also not documented in the manual page.
     59  1.4  rillig 
     60  1.4  rillig .if 0 & 0
     61  1.4  rillig .  error
     62  1.4  rillig .endif
     63  1.4  rillig .if 1 & 0
     64  1.4  rillig .  error
     65  1.4  rillig .endif
     66  1.4  rillig .if 0 & 1
     67  1.4  rillig .  error
     68  1.4  rillig .endif
     69  1.4  rillig .if !(1 & 1)
     70  1.4  rillig .  error
     71  1.4  rillig .endif
     72  1.4  rillig 
     73  1.4  rillig # There is no operator &&&.
     74  1.7  rillig # expect+1: Malformed conditional (0 &&& 0)
     75  1.4  rillig .if 0 &&& 0
     76  1.4  rillig .  error
     77  1.4  rillig .endif
     78  1.4  rillig 
     79  1.1  rillig all:
     80  1.1  rillig 	@:;
     81