Memory leak ?

[invpe]

Run this simple script 10000 times and you'll end up eating your memory.

DEF TEST() 
PRINT "WHATEVER";
ENDDEF
PRINT "HELLO WORLD";

Runtime logs:

22:14:00.174 -> Exe /last.bas Tout: 10000ms Heap: 204564 <<
22:14:00.206 -> Exe Loaded /last.bas Tout: 10000ms Heap: 195084
22:14:00.206 -> Exe /last.bas Tout: 10000ms Heap: 204224 <<
22:14:00.237 -> Exe Loaded /last.bas Tout: 10000ms Heap: 194744
22:14:00.237 -> Exe /last.bas Tout: 10000ms Heap: 203884 <<
22:14:00.237 -> Exe Loaded /last.bas Tout: 10000ms Heap: 194408

... 

22:15:05.877 -> Exe Loaded /last.bas Tout: 10000ms Heap: 155952 
22:15:05.877 -> Exe /last.bas Tout: 10000ms Heap: 165012<<
22:15:05.909 -> Exe Loaded /last.bas Tout: 10000ms Heap: 155600
22:15:05.909 -> Exe /last.bas Tout: 10000ms Heap: 164672 <<
22:15:05.909 -> Exe Loaded /last.bas Tout: 10000ms Heap: 155268
22:15:05.941 -> Exe /last.bas Tout: 10000ms Heap: 164332 <<
22:15:05.941 -> Exe Loaded /last.bas Tout: 10000ms Heap: 154916

As soon as you remove the DEF - ENDDEF block, you're fine, see below:

REM DEF TEST()
REM PRINT "WHATEVER";
REM ENDDEF
PRINT "HELLO WORLD";

Runtime log:

22:39:52.603 -> Exe /last.bas Tout: 10000ms Heap: 228608
22:39:52.603 -> Exe Loaded /last.bas Tout: 10000ms Heap: 218596
22:39:52.603 -> HELLO WORLD
22:39:52.603 -> Exe /last.bas Tout: 10000ms Heap: 228508 <<<<<<<<
22:39:52.641 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.641 -> HELLO WORLD
22:39:52.641 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.666 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.666 -> HELLO WORLD
22:39:52.666 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.666 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.666 -> HELLO WORLD
22:39:52.699 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.699 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.699 -> HELLO WORLD
22:39:52.699 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.731 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.731 -> HELLO WORLD
22:39:52.731 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.731 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.764 -> HELLO WORLD
22:39:52.764 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.764 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.764 -> HELLO WORLD
22:39:52.764 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.796 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.796 -> HELLO WORLD
22:39:52.796 -> Exe /last.bas Tout: 10000ms Heap: 228508
22:39:52.828 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.828 -> HELLO WORLD
22:39:52.828 -> Exe /last.bas Tout: 10000ms Heap: 228508 <<<<<<<<
22:39:52.828 -> Exe Loaded /last.bas Tout: 10000ms Heap: 220832
22:39:52.828 -> HELLO WORLD

[invpe]

This happens when MB_ENABLE_LAMBDA is undefined / used.

MB_ENABLE_LAMBDA

Enabled by default. Compiles with lambda (anonymous function) support if this macro is defined.

Steps to reproduce

in my_basic.h undefine MB_ENABLE_LAMBDA

// #ifndef MB_ENABLE_LAMBDA
// #	define MB_ENABLE_LAMBDA
// #endif /* MB_ENABLE_LAMBDA */

[blazer2k1]

So based on your test there's mem leak if lambda is disabled?

[invpe]

Correct, when MB_ENABLE_LAMBDA is not defined and DEF used in the script.