1# $NetBSD: cond-op-and.mk,v 1.6 2021/12/10 19:14:35 rillig Exp $
2#
3# Tests for the && operator in .if conditions.
4
5.if 0 && 0
6.  error
7.endif
8
9.if 1 && 0
10.  error
11.endif
12
13.if 0 && 1
14.  error
15.endif
16
17.if !(1 && 1)
18.  error
19.endif
20
21
22# The right-hand side is not evaluated since the left-hand side is already
23# false.
24.if 0 && ${UNDEF}
25.endif
26
27# When an outer condition makes the inner '&&' condition irrelevant, neither
28# of its operands must be evaluated.
29#
30.if 1 || (${UNDEF} && ${UNDEF})
31.endif
32
33# Test combinations of outer '||' with inner '&&', to ensure that the operands
34# of the inner '&&' are only evaluated if necessary.
35DEF=	defined
36.if 0 || (${DEF} && ${UNDEF})
37.endif
38.if 0 || (!${DEF} && ${UNDEF})
39.endif
40.if 0 || (${UNDEF} && ${UNDEF})
41.endif
42.if 0 || (!${UNDEF} && ${UNDEF})
43.endif
44.if 1 || (${DEF} && ${UNDEF})
45.endif
46.if 1 || (!${DEF} && ${UNDEF})
47.endif
48.if 1 || (${UNDEF} && ${UNDEF})
49.endif
50.if 1 || (!${UNDEF} && ${UNDEF})
51.endif
52
53
54# The && operator may be abbreviated as &.  This is not widely known though
55# and is also not documented in the manual page.
56
57.if 0 & 0
58.  error
59.endif
60.if 1 & 0
61.  error
62.endif
63.if 0 & 1
64.  error
65.endif
66.if !(1 & 1)
67.  error
68.endif
69
70# There is no operator &&&.
71.if 0 &&& 0
72.  error
73.endif
74
75all:
76	@:;
77