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