Changeset 37ceccb for libcfa/src/iostream.cfa

Timestamp:

Oct 17, 2023, 12:12:00 PM (9 months ago)

Author:

Michael Brooks <mlbrooks@…>

Branches:

master

Children:

5e0bba5

Parents:

1b41219

Message:

Change string-read semantics so that reading nothing leaves the original value unmodified.

Logically revert #8cffa4f21, and apply the change onto work done since.

At cstring layer, libcfa change is a simplification, and test suite change is merely a different expectation.

At var-len-string layer, libcfa change is a patch to enable detecting the nothing-read case,
and test sute change (shows the different expectation but also) puts a similar patch into its "stop trying if nothing read" loop exits.

File:

• libcfa/src/iostream.cfa (modified) (1 diff)

libcfa/src/iostream.cfa

@@ -1021 +1021 @@
                 int check = f.wd - 2;
                 if (! f.flags.ignore ) {
-                        f.s[0] = '\0';
                         if ( ! f.flags.rwd ) f.s[check] = '\0';         // insert sentinel
                 }