Fixed in standard function library: String comparison was retrurning wrong result whith strings of different sizes but starting the same, or with zero length strings.

STD_TEST.st
STD_RESSOURCE.c
LOCATED_VARIABLES.h
POUS.c
test
STD_CONF.c
SFC_TEST.st
test.exe
plc.st
POUS.h
VARIABLES.csv