adding onto strings

This is a discussion on adding onto strings within the C Programming forums, part of the General Programming Boards category; Hi all What i would like to know is best shown with an example. The user is about to save ...

  1. #1
    Registered User
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    adding onto strings

    Hi all

    What i would like to know is best shown with an example.

    The user is about to save a file. The user types in "file1" as the files name. now with that I want to add a .dg onto the end of it. How would I do this?

  2. #2
    Skunkmeister Stoned_Coder's Avatar
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    use strcat()
    Free the weed!! Class B to class C is not good enough!!
    And the FAQ is here :- http://faq.cprogramming.com/cgi-bin/smartfaq.cgi

  3. #3
    Registered User Dr. Bebop's Avatar
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    Code:
    #include <stdio.h>
    #include <string.h>
    
    int main()
    {
            char file_name[1024];
    
            /* Read the file */
            printf( "Enter a file name (no extension): " );
            fgets( file_name, 1024, stdin );
            file_name[strcspn( file_name, "\n" )] = '\0';
    
            /* Append the extension */
            strcat( file_name, ".dg" );
    
            /* Check that it worked right */
            printf( "%s\n", file_name );
    
            return 0;
    }
    Processing error: Stupidity detected.
    ------------------------------
    Dr. Bebop
    Windows XP Professional Ed.
    Microsoft Visual Studio 6

  4. #4
    Me want cookie! Monster's Avatar
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    Originally posted by Dr. Bebop
    Code:
    file_name[strcspn( file_name, "\n" )] = '\0';
    Nice one. Got that from Hammer?

  5. #5
    Registered User Dr. Bebop's Avatar
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    Yep, it makes for cleaner looking code.
    Processing error: Stupidity detected.
    ------------------------------
    Dr. Bebop
    Windows XP Professional Ed.
    Microsoft Visual Studio 6

  6. #6
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    thanks

    Yep got it working thanks

  7. #7
    End Of Line Hammer's Avatar
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    >>Nice one. Got that from Hammer?
    Glad to see the code is being used But I can't and won't take the credit for this one liner. I first saw it used by Prelude, and thought the same as Dr Bebop.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

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