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-rw-r--r--generic/tclStringObj.c19
1 files changed, 9 insertions, 10 deletions
diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c
index 0f6eff7..ab62359 100644
--- a/generic/tclStringObj.c
+++ b/generic/tclStringObj.c
@@ -152,8 +152,7 @@ typedef struct String {
*
* Attempt to allocate 2 * (originalLength + appendLength)
* On failure:
- * attempt to allocate originalLength + 2*appendLength +
- * TCL_GROWTH_MIN_ALLOC
+ * attempt to allocate originalLength + 2*appendLength + TCL_MIN_GROWTH
*
* This algorithm allows very good performance, as it rapidly increases the
* memory allocated for a given string, which minimizes the number of
@@ -166,20 +165,20 @@ typedef struct String {
* cover the request, but which hopefully will be less than the total
* available memory.
*
- * The addition of TCL_GROWTH_MIN_ALLOC allows for efficient handling of very
+ * The addition of TCL_MIN_GROWTH allows for efficient handling of very
* small appends. Without this extra slush factor, a sequence of several small
* appends would cause several memory allocations. As long as
- * TCL_GROWTH_MIN_ALLOC is a reasonable size, we can avoid that behavior.
+ * TCL_MIN_GROWTH is a reasonable size, we can avoid that behavior.
*
* The growth algorithm can be tuned by adjusting the following parameters:
*
- * TCL_GROWTH_MIN_ALLOC Additional space, in bytes, to allocate when
+ * TCL_MIN_GROWTH Additional space, in bytes, to allocate when
* the double allocation has failed. Default is
- * 1024 (1 kilobyte).
+ * 1024 (1 kilobyte). See tclInt.h.
*/
-#ifndef TCL_GROWTH_MIN_ALLOC
-#define TCL_GROWTH_MIN_ALLOC 1024
+#ifndef TCL_MIN_UNICHAR_GROWTH
+#define TCL_MIN_UNICHAR_GROWTH TCL_MIN_GROWTH/sizeof(Tcl_UniChar)
#endif
static void
@@ -214,7 +213,7 @@ GrowStringBuffer(
*/
unsigned int limit = INT_MAX - needed;
- unsigned int extra = needed - objPtr->length + TCL_GROWTH_MIN_ALLOC;
+ unsigned int extra = needed - objPtr->length + TCL_MIN_GROWTH;
int growth = (int) ((extra > limit) ? limit : extra);
attempt = needed + growth;
@@ -265,7 +264,7 @@ GrowUnicodeBuffer(
unsigned int limit = STRING_MAXCHARS - needed;
unsigned int extra = needed - stringPtr->numChars
- + TCL_GROWTH_MIN_ALLOC/sizeof(Tcl_UniChar);
+ + TCL_MIN_UNICHAR_GROWTH;
int growth = (int) ((extra > limit) ? limit : extra);
attempt = needed + growth;