Thread: Passing arg 1 of `atoi' makes pointer from integer without a cast, Please help.

  1. #1
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    Passing arg 1 of `atoi' makes pointer from integer without a cast, Please help.

    Code:
    char c,tmp[3],camadas_dados[5000],*ptr;
    int camada_actual,area_camada,boxes_camada,wires_camada,temp,layers,boxes,wires,bk;
    
        void dadosCamada () {
             int s; //0 = area_camada, 1 = boxes_camada, 2 = wires_camada
             bk=pX;
             area_camada = boxes_camada = wires_camada = 0;
             
             while(camadas_dados[bk] != ']') {
              if(isdigit(camadas_dados[bk])) {
               area_camada = (s == 0) ? area_camada*10 + atoi(camadas_dados[bk]) : area_camada;
               boxes_camada = (s == 1) ? boxes_camada*10 + atoi(camadas_dados[bk]) : boxes_camada;
               wires_camada = (s == 2) ? wires_camada*10 + atoi(camadas_dados[bk]) : wires_camada;
              }
              else if(s!=0){s++;}
              bk++;
             }
             }

    I'm getting the error here:

    PHP Code:
               area_camada = (== 0) ? area_camada*10 atoi(camadas_dados[bk]) : area_camada;
               
    boxes_camada = (== 1) ? boxes_camada*10 atoi(camadas_dados[bk]) : boxes_camada;
               
    wires_camada = (== 2) ? wires_camada*10 atoi(camadas_dados[bk]) : wires_camada
    [Warning] passing arg 1 of `atoi' makes pointer from integer without a cast
    [Warning] passing arg 1 of `atoi' makes pointer from integer without a cast
    [Warning] passing arg 1 of `atoi' makes pointer from integer without a cast
    This error may be very stupid but i can't find it.. Thanks for helping

  2. #2
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    I edited the post to add the line:
    char c,tmp[3],camadas_dados[5000],*ptr;

  3. #3
    Registered User NeonBlack's Avatar
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    atoi() as the name suggests, takes an array and returns and integer. You're giving it a char.
    try
    Code:
    atoi(camadas_dados)
    I copied it from the last program in which I passed a parameter, which would have been pre-1989 I guess. - esbo

  4. #4
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    Quote Originally Posted by NeonBlack View Post
    atoi() as the name suggests, takes an array and returns and integer. You're giving it a char.
    try
    Code:
    atoi(camadas_dados)
    Omg you're right! Stupid me.

    can i make atoi(camadas_dados+bk) ? because camadas_dados will start from [0], i want it to start from [bk].

    Thanks!

  5. #5
    Registered User NeonBlack's Avatar
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    It should work.
    I copied it from the last program in which I passed a parameter, which would have been pre-1989 I guess. - esbo

  6. #6
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    Okay, thank you

  7. #7
    C++まいる!Cをこわせ!
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    This works:
    Code:
    atoi(camadas_dados+bk)
    But another way of doing it, if you're interested, is:
    Code:
    atoi(&camadas_dados[bk])
    Quote Originally Posted by Adak View Post
    io.h certainly IS included in some modern compilers. It is no longer part of the standard for C, but it is nevertheless, included in the very latest Pelles C versions.
    Quote Originally Posted by Salem View Post
    You mean it's included as a crutch to help ancient programmers limp along without them having to relearn too much.

    Outside of your DOS world, your header file is meaningless.

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