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-rw-r--r--generic/tclCompCmdsGR.c4
-rw-r--r--tests/lreplace.test9
2 files changed, 13 insertions, 0 deletions
diff --git a/generic/tclCompCmdsGR.c b/generic/tclCompCmdsGR.c
index e2fb43d..b77c43c 100644
--- a/generic/tclCompCmdsGR.c
+++ b/generic/tclCompCmdsGR.c
@@ -1501,6 +1501,10 @@ TclCompileLreplaceCmd(
return TCL_ERROR;
}
+ if(idx2 != INDEX_END && idx2 < idx1) {
+ idx2 = idx1-1;
+ }
+
/*
* Work out what this [lreplace] is actually doing.
*/
diff --git a/tests/lreplace.test b/tests/lreplace.test
index b976788..d5c51ae 100644
--- a/tests/lreplace.test
+++ b/tests/lreplace.test
@@ -137,6 +137,15 @@ test lreplace-4.1 {Bug ccc2c2cc98: lreplace edge case} {
test lreplace-4.2 {Bug ccc2c2cc98: lreplace edge case} {
lreplace { } 1 1
} {}
+test lreplace-4.3 {lreplace edge case} {
+ lreplace {1 2 3} 2 0
+} {1 2 3}
+test lreplace-4.4 {lreplace edge case} {
+ lreplace {1 2 3 4 5} 3 1
+} {1 2 3 4 5}
+test lreplace-4.4 {lreplace edge case} {
+ lreplace {1 2 3 4 5} 3 0 _
+} {1 2 3 _ 4 5}
# cleanup
catch {unset foo}