ascii to int

This is a discussion on ascii to int within the C Programming forums, part of the General Programming Boards category; Im reading data in from a file and using the values captured to manipulate shape placement in opengl. However, the ...

  1. #1
    Registered User gazsux's Avatar
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    ascii to int

    Im reading data in from a file and using the values captured to manipulate shape placement in opengl. However, the data I get from the file is for example an 'ascii 0', so when i come to stick this into the function to position it, it doesnt understand that all it is is a 0. Ive seen a toascii() function when looking for an appropriate function, is there a similar function to convert ascii to ints?
    Last edited by gazsux; 02-20-2003 at 09:04 AM.

  2. #2
    Registered User Vber's Avatar
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    http://www.hh.se/stud/d98rolb/ansi/atoi().html
    Atoi() I think should make the trick

  3. #3
    Registered User gazsux's Avatar
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    good sir, i could eat you... but i wont. ty

  4. #4
    End Of Line Hammer's Avatar
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    The FAQ. Maybe that will help you.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  5. #5
    Registered User gazsux's Avatar
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    ok, im still having problems. Ill describe what im doing.
    I have a text file that has a list of numbers and letters, this data im going to process and turn it into data to place opengl objects. the format of the data in the file is like:

    a001 b020

    I read these into an array using fgets.

    I evaluate the contents of the array, if it finds 'a' for example it then uses the next 3 numbers of the array as coordinates. in this case 0, 0, 1. Because im using the data individually the atoi() function i was told about isnt of much help as it takes one number and converts it and ignores the char data. I cant think of a way round this, any ideas?

  6. #6
    Me want cookie! Monster's Avatar
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    Code:
    char line[] = "a001 b020";
    
    int n1, n2, n3;
    
    n1 = line[1] - '0';
    n2 = line[2] - '0';
    n3 = line[3] - '0';

  7. #7
    Registered User gazsux's Avatar
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    it worked! thats incredible! so the compiler presumably then is handling its own casting... *makes note* ty ty

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