Now that we have TCL_AUTO_LENGTH/TCL_IO_FAILURE macro's, use them to make code and documentation more readable.

Shifted to feature branch as a temporary measure since it doesn't build.

1 files changed, 2 insertions, 2 deletions

diff --git a/unix/tclUnixInit.c b/unix/tclUnixInit.c
index 21e8f20..eacf157 100644
--- a/unix/tclUnixInit.c
+++ b/unix/tclUnixInit.c
@@ -981,7 +981,7 @@ TclpSetVariables(
  *
  * Results:
  *	The return value is the index in environ of an entry with the name
- *	"name", or (size_t)-1 if there is no such entry. The integer at *lengthPtr is
+ *	"name", or TCL_IO_FAILURE if there is no such entry. The integer at *lengthPtr is
  *	filled in with the length of name (if a matching entry is found) or
  *	the length of the environ array (if no matching entry is found).
  *
@@ -1000,7 +1000,7 @@ TclpFindVariable(
 				 * entries in environ (for unsuccessful
 				 * searches). */
 {
-    size_t i, result = (size_t)-1;
+    size_t i, result = TCL_IO_FAILURE;
     register const char *env, *p1, *p2;
     Tcl_DString envString;