1# $NetBSD: cond-cmp-numeric-ne.mk,v 1.2 2020/10/24 08:46:08 rillig Exp $ 2# 3# Tests for numeric comparisons with the != operator in .if conditions. 4 5# When both sides are equal, the != operator always yields false. 6.if 1 != 1 7. error 8.endif 9 10# This comparison yields the same result, whether numeric or character-based. 11.if 1 != 2 12.else 13. error 14.endif 15 16.if 2 != 1 17.else 18. error 19.endif 20 21# Scientific notation is supported, as per strtod. 22.if 2e7 != 2000e4 23. error 24.endif 25 26.if 2000e4 != 2e7 27. error 28.endif 29 30# Trailing zeroes after the decimal point are irrelevant for the numeric 31# value. 32.if 3.30000 != 3.3 33. error 34.endif 35 36.if 3.3 != 3.30000 37. error 38.endif 39 40# As of 2020-08-23, numeric comparison is implemented as parsing both sides 41# as double, and then performing a normal comparison. The range of double is 42# typically 16 or 17 significant digits, therefore these two numbers seem to 43# be equal. 44.if 1.000000000000000001 != 1.000000000000000002 45. error 46.endif 47 48all: 49 @:; 50