easy Question

This is a discussion on easy Question within the C++ Programming forums, part of the General Programming Boards category; In this code example what is this code doing? ("\n%s ", and ("%s\n", #include <stdio.h> #include <string.h> struct tag { ...

  1. #1
    Registered User
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    easy Question

    In this code example
    what is this code doing?

    ("\n%s ",
    and
    ("%s\n",

    #include <stdio.h>
    #include <string.h>

    struct tag {
    char lname[20]; /* last name */
    char fname[20]; /* first name */
    int age; /* age */
    float rate; /* e.g. 12.75 per hour */
    };

    struct tag my_struct; /* declare the structure my_struct */

    int main(void)
    {
    strcpy(my_struct.lname,"Jensen");
    strcpy(my_struct.fname,"Ted");
    printf("\n%s ",my_struct.fname);
    printf("%s\n",my_struct.lname);
    return 0;
    }

  2. #2
    PC Fixer-Upper Waldo2k2's Avatar
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    Your printf() statement tries to print strings.....however your char arrays are not strings.
    "Jensen", needs to be "Jensen/0"
    give that a try.
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  3. #3
    Spanky devour89's Avatar
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    First of all USE CODE TAGS!!!!

    second of all:

    Code:
    struct tag my_struct; //SCARY!!!!
    do this instead:

    Code:
    tag my_struct; //AWESOME!!!!
    And allso what is this all about:

    Code:
    ("\n%s ",
    and
    ("%s\n",
    Doesn't look right ot me.

    Code:
    #include <string.h> //SCARY!!!!
    do this:

    Code:
    #include <string> //AWESOME!!!!
    Code:
    int main()  //NO VOID GRRRR
    {
     cout<<"Name: ";
     cin<<my_struct.fname;
     cout<<"Last Name: ";
     cin<<my_struct.lname;
     if(!strcmpi(my_struct.fname, "Jhonson")) //notice the 'i' instead of 'y'
    {
     cout<<"Thats my name too!!";
    }
    return 0;
    }
    I hope that clears it a bit

    -Devouring One-

  4. #4
    I lurk
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    This should be moved to the C-Programming board.

    printf("\n%s ",my_struct.fname);
    printf("%s\n",my_struct.lname);

    \n prints a new line, and %s is a string field with is replaced by my_struct.fname and my_struct.lname

    For example:

    char *hw = "Hello World, i'm ";
    int age = 16;
    char *end = " years old!";

    printf("\n%s%d%s", hw, age, end);

    This expands to

    printf("\nHello World, i'm 16 years old!");

    See this for further info:
    http://osr5doc.ca.caldera.com:457/cg...n/man?printf+C

  5. #5
    PC Fixer-Upper Waldo2k2's Avatar
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    first of all, strcmp checks for comparison, he's trying to copy chars into the variable(that's the part he's having trouble with)...second of all, he's working with C, and you posted C++ code.
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  6. #6
    Spanky devour89's Avatar
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    Yes i did because its a C++ board.

    Ohh i didn't know about that.... well i will learn it....hopefully
    Dev C++
    Win XP/2k/98

    I DO NOT TAKE CLASSES I DONT GET HOMEWORK THIS IS NOT A HOMEWORK QUESTION!!!

    He's lean he's keen... He's the spank machine!

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