ios - BOOL variable changes to 'NO' automatically -

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i have issue bool variable, in middle of function variable's value resets 'no automatically: game.h:

@property bool playerturn;

players.m:

+(void)playturnwithboardpositions:(nsmutablearray*)boardpositions andplayerturn:(bool)playerturn//[playerturn(bool)'s value 'yes' { //printing turn player (x/o) if (playerturn) {     nslog(@"\no turn"); } else     nslog(@"\nx turn"); //user input instraction nslog(@"\nwhere want insert %s?",playerturn?"o":"x");  //getting user's input (char) char input[3]; gets(input); //converting input nsstring nsstring* inputstring=[nsstring stringwithutf8string:input];//playerturn's resets 'no'  //checking user's input , implementing choice board [players inputcheckandimplementwithinputstring:inputstring andboardpositions:boardpositions andplayerturn:playerturn];  }

does know how solve this?
maybe arc?


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