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[src/trunk]: src/usr.bin/make/unit-tests make(1): demonstrate off-by-one bug ...



details:   https://anonhg.NetBSD.org/src/rev/baa5be637a47
branches:  trunk
changeset: 973978:baa5be637a47
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sun Jul 19 17:24:22 2020 +0000

description:
make(1): demonstrate off-by-one bug in :C modifier

diffstat:

 usr.bin/make/unit-tests/modmisc.exp |  10 ++++++++++
 usr.bin/make/unit-tests/modmisc.mk  |  11 ++++++++++-
 2 files changed, 20 insertions(+), 1 deletions(-)

diffs (47 lines):

diff -r 0e902b1b3956 -r baa5be637a47 usr.bin/make/unit-tests/modmisc.exp
--- a/usr.bin/make/unit-tests/modmisc.exp       Sun Jul 19 16:48:48 2020 +0000
+++ b/usr.bin/make/unit-tests/modmisc.exp       Sun Jul 19 17:24:22 2020 +0000
@@ -51,4 +51,14 @@
 mod-loop-dollar:$${word}$:
 mod-loop-dollar:$$5$$:
 mod-loop-dollar:$$${word}$$:
+mod-C-limits:00-ok:1 2323 45456
+mod-C-limits:11-missing:1 6
+mod-C-limits:11-ok:1 22 446
+make: No subexpression \2
+make: No subexpression \2
+make: No subexpression \2
+make: No subexpression \2
+mod-C-limits:22-missing:1 6
+mod-C-limits:22-missing:1 6
+mod-C-limits:22-ok:1 33 556
 exit status 0
diff -r 0e902b1b3956 -r baa5be637a47 usr.bin/make/unit-tests/modmisc.mk
--- a/usr.bin/make/unit-tests/modmisc.mk        Sun Jul 19 16:48:48 2020 +0000
+++ b/usr.bin/make/unit-tests/modmisc.mk        Sun Jul 19 17:24:22 2020 +0000
@@ -1,4 +1,4 @@
-# $Id: modmisc.mk,v 1.13 2020/07/19 15:16:22 rillig Exp $
+# $Id: modmisc.mk,v 1.14 2020/07/19 17:24:22 rillig Exp $
 #
 # miscellaneous modifier tests
 
@@ -18,6 +18,7 @@
 all:   modvar modvarloop modsysv mod-HTE emptyvar undefvar
 all:   mod-S mod-C mod-at-varname mod-at-resolve mod-at-dollar
 all:   mod-subst-dollar mod-loop-dollar
+all:   mod-C-limits
 
 modsysv:
        @echo "The answer is ${libfoo.a:L:libfoo.a=42}"
@@ -133,3 +134,11 @@
        @echo $@:${:U4:@word@$$$${word}$$$$@:Q}:
        @echo $@:${:U5:@word@$$$$${word}$$$$$@:Q}:
        @echo $@:${:U6:@word@$$$$$${word}$$$$$$@:Q}:
+
+mod-C-limits:
+       @echo $@:00-ok:${:U1 23 456:C,..,\0\0,:Q}
+       @echo $@:11-missing:${:U1 23 456:C,..,\1\1,:Q}
+       @echo $@:11-ok:${:U1 23 456:C,(.).,\1\1,:Q}
+       @echo $@:22-missing:${:U1 23 456:C,..,\2\2,:Q}
+       @echo $@:22-missing:${:U1 23 456:C,(.).,\2\2,:Q}
+       @echo $@:22-ok:${:U1 23 456:C,(.)(.),\2\2,:Q}



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