diff options
Diffstat (limited to 'unit-tests/cond-cmp-numeric.mk')
| -rw-r--r-- | unit-tests/cond-cmp-numeric.mk | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/unit-tests/cond-cmp-numeric.mk b/unit-tests/cond-cmp-numeric.mk index 409636c3c3ca..67358ddaf86b 100644 --- a/unit-tests/cond-cmp-numeric.mk +++ b/unit-tests/cond-cmp-numeric.mk @@ -1,8 +1,29 @@ -# $NetBSD: cond-cmp-numeric.mk,v 1.2 2020/08/16 14:25:16 rillig Exp $ +# $NetBSD: cond-cmp-numeric.mk,v 1.3 2020/09/12 18:01:51 rillig Exp $ # # Tests for numeric comparisons in .if conditions. -# TODO: Implementation +.MAKEFLAGS: -dc + +# The ${:U...} on the left-hand side is necessary for the parser. + +# Even if strtod(3) parses "INF" as +Infinity, make does not accept this +# since it is not really a number; see TryParseNumber. +.if !(${:UINF} > 1e100) +. error +.endif + +# Neither is NaN a number; see TryParseNumber. +.if ${:UNaN} > NaN +. error +.endif + +# Since NaN is not parsed as a number, both operands are interpreted +# as strings and are therefore equal. If they were parsed as numbers, +# they would compare unequal, since NaN is unequal to any and everything, +# including itself. +.if !(${:UNaN} == NaN) +. error +.endif all: @:; |