FMSLogo Code

A Logo programming environment for Microsoft Windows

Brought to you by: david_costanzo

Commit [r6219] Maximize Restore History

Fix Bug #616; Empty words created by DLLCALL now act like the empty word.

I chose to fix this in DLLCALL, making make_buffer return Null_Word like make_strnode does.

An alternative fix could have been to find all places which assume that Null_Word is the only
empty word and fix those to look at the string's length. That would have been a more robust
fix, but it also would have been more invasive and undone whatever the original authors were
tying to accomplish by making Null_Word a singleton.

Authored by: david_costanzo 2026-05-23

Browse code at this revision

Parent: [r6218]

Child: [r6220]

changed	/logo/trunk/src/CHANGELOG.TXT
changed	/logo/trunk/src/dllwind.cpp
changed	/logo/trunk/src/test/dll.lgo
changed	/logo/trunk/src/test/testlog.baseline.txt

FMSLogo Code

A Logo programming environment for Microsoft Windows

Commit [r6219] Maximize Restore History

/logo/trunk/src/CHANGELOG.TXT Diff Switch to side-by-side view

/logo/trunk/src/dllwind.cpp Diff Switch to side-by-side view

/logo/trunk/src/test/dll.lgo Diff Switch to side-by-side view

/logo/trunk/src/test/testlog.baseline.txt Diff Switch to side-by-side view