strtoul.c source code

This is a discussion on strtoul.c source code within the C Programming forums, part of the General Programming Boards category; can someone write source code for strtoul (string to unsigned long) thanks...

  1. #1
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    strtoul.c source code

    can someone write source code for strtoul (string to unsigned long)

    thanks

  2. #2
    Code Goddess Prelude's Avatar
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    >can someone write source code for strtoul (string to unsigned long)
    Yes, I sure can.

    -Prelude
    My best code is written with the delete key.

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    End Of Line Hammer's Avatar
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    I heard it's impossible Bet you can't really do it Prelude.


    dsugard : If you didn't spot the sarcasm, I say now there's plenty here What is it you're trying to do? Is this a homework thing? Whatever it is, try writing something yourself, and post your code when you have troubles with it, then people will be willing to help you.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  4. #4
    moi
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    hello, internet!

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    u can find all the code to the inbuilt functions if u look in the program files of the MS visual studio..

    the header files are under the folder 'include'
    and the functions tend to be under CRT

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    cvtIn[]

    to Moi and others,

    in the code given here http://tcl.apache.org/sources/tcl/compat/strtoul.c.html

    how come all non digit characters be mapped to value 100? also how many non digit characters would be know beforehand?

    static char cvtIn[] = {
    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, /* '0' - '9' */
    100, 100, 100, 100, 100, 100, 100, /* punctuation */
    10, 11, 12, 13, 14, 15, 16, 17, 18, 19, /* 'A' - 'Z' */
    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
    30, 31, 32, 33, 34, 35,
    100, 100, 100, 100, 100, 100, /* punctuation */
    10, 11, 12, 13, 14, 15, 16, 17, 18, 19, /* 'a' - 'z' */
    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
    30, 31, 32, 33, 34, 35};
    Last edited by dsugard; 12-04-2002 at 02:07 PM.

  7. #7
    moi
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    Re: cvtIn[]

    Originally posted by dsugard
    to Moi and others,

    in the code given here http://tcl.apache.org/sources/tcl/compat/strtoul.c.html

    how come all non digit characters be mapped to value 100? also how many non digit characters would be know beforehand?

    static char cvtIn[] = {
    0, 1, 2, 3, 4, 5, 6, 7, 8, 9, /* '0' - '9' */
    100, 100, 100, 100, 100, 100, 100, /* punctuation */
    10, 11, 12, 13, 14, 15, 16, 17, 18, 19, /* 'A' - 'Z' */
    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
    30, 31, 32, 33, 34, 35,
    100, 100, 100, 100, 100, 100, /* punctuation */
    10, 11, 12, 13, 14, 15, 16, 17, 18, 19, /* 'a' - 'z' */
    20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
    30, 31, 32, 33, 34, 35};
    dood, read the fricking code. i'll even tell you: line 168 and 185 are good places to start.
    hello, internet!

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