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authorjan.nijtmans <nijtmans@users.sourceforge.net>2019-01-18 22:44:43 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2019-01-18 22:44:43 (GMT)
commit5a02d5db9cec007d16a60b24bd8cd0b1912d123f (patch)
treef9868ebc5760bacfff4a34e36a004b12f2c8383d /generic/tclUtil.c
parent3097e10be1fdd2dac0d1865cf86b453e35fcc0f1 (diff)
parent3dd30ce854309c3433f211cacf5c430b9e8d0005 (diff)
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Merge 8.7
Diffstat (limited to 'generic/tclUtil.c')
-rw-r--r--generic/tclUtil.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/generic/tclUtil.c b/generic/tclUtil.c
index 8e2d4ba..44ecd90 100644
--- a/generic/tclUtil.c
+++ b/generic/tclUtil.c
@@ -3888,15 +3888,18 @@ TclIndexEncode(
*----------------------------------------------------------------------
*/
-int
+size_t
TclIndexDecode(
int encoded, /* Value to decode */
size_t endValue) /* Meaning of "end" to use, > TCL_INDEX_END */
{
- if (encoded <= TCL_INDEX_END) {
- return (encoded - TCL_INDEX_END) + endValue;
+ if (encoded > TCL_INDEX_END) {
+ return encoded;
+ }
+ if (endValue >= TCL_INDEX_END - (size_t)encoded) {
+ return endValue + encoded - TCL_INDEX_END;
}
- return encoded;
+ return TCL_INDEX_NONE;
}
/*