1# $NetBSD: cond-cmp-numeric.mk,v 1.6 2022/09/04 22:55:00 rillig Exp $
2#
3# Tests for numeric comparisons in .if conditions.
4
5.MAKEFLAGS: -dc
6
7# The ${:U...} on the left-hand side is necessary for the parser.
8
9# Even if strtod(3) parses "INF" as +Infinity, make does not accept this
10# since it is not really a number; see TryParseNumber.
11.if !(${:UINF} > 1e100)
12.  error
13.endif
14
15# Neither is NaN a number; see TryParseNumber.
16.if ${:UNaN} > NaN
17.  error
18.endif
19
20# Since NaN is not parsed as a number, both operands are interpreted
21# as strings and are therefore equal.  If they were parsed as numbers,
22# they would compare unequal, since NaN is unequal to any and everything,
23# including itself.
24.if !(${:UNaN} == NaN)
25.  error
26.endif
27
28# The parsing code in CondParser_Comparison only performs a light check on
29# whether the operator is valid, leaving the rest of the work to the
30# evaluation functions EvalCompareNum and EvalCompareStr.  Ensure that this
31# parse error is properly reported.
32#
33# XXX: The warning message does not mention the actual operator.
34.if 123 ! 123
35.  error
36.else
37.  error
38.endif
39
40# Leading spaces are allowed for numbers.
41# See EvalCompare and TryParseNumber.
42.if ${:U 123} < 124
43.else
44.  error
45.endif
46
47# Trailing spaces are NOT allowed for numbers.
48# See EvalCompare and TryParseNumber.
49# expect+1: Comparison with '<' requires both operands '123 ' and '124' to be numeric
50.if ${:U123 } < 124
51.  error
52.else
53.  error
54.endif
55
56all:
57	@:;
58