return 0; vs return false;

[chowking]

hey guys, i've modded soul link of blacksmith and starglad to have parry skill, and now im editing it so the blacksmith and SG can use parry with 1h axes and books,

so i did this code

this works when i use return 0; but following the codes now using return false in checks, i cant seem to work around it

bottom line is , is it safe to use return 0; there and wont affect other functions in rAthena if not, please help me get around the return false check;

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EDIT: FIXED,so i removed the code

Edited February 5, 2017 by chowking

[Emistry]

Because zero and false have different purposes, as they are different things. 
In a condition statement, zero and false are treated as the same thing. 
Sometimes you need to find zero without being false.

Using return 0, will return zero, which is a number.

Using return false says that there is nothing to return, or don't return.