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what is wrong with this code ( verryyy nooobbbb )

This is a discussion on what is wrong with this code ( verryyy nooobbbb ) within the C Programming forums, part of the General Programming Boards category; Code: #include <stdio.h> main() { char name[10]; short age; printf("enter your age.\n"); scanf("%d",&age); fflush(stdin); printf("please enter your name.\n"); scanf("%[^\n]",name); if ...

  1. #1
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    what is wrong with this code ( verryyy nooobbbb )

    Code:
    #include <stdio.h>
    main()
    {
     char name[10];
     short age;
     
     printf("enter your age.\n");
     scanf("%d",&age);
     fflush(stdin);
     printf("please enter your name.\n");
     scanf("%[^\n]",name);
    if (strcmp(name, "bruce") == 1 && (age >13 || age <18))
                           printf("u are the chosen one");
                else
                           printf("u are nothing");
    getchar();
    }


    the error is
    `strcmp' undeclared (first use this function)

    i'm new in c

  2. #2
    ATH0 quzah's Avatar
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    You need to #include string.h . Also, if you are trying to check a range, you want to make sure it's greater than 13 AND less than 18.


    Quzah.
    eslam likes this.
    Hope is the first step on the road to disappointment.

  3. #3
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    Well, a couple of things.

    1. To use string functions you need to #include<string.h>
    2. The minimum C program is:
    Code:
    int main(void){
    
         return 0;
    }
    3. Your indentation sucks. Read How should I indent my code?
    4. Read Why fflush(stdin) is wrong
    5. Your scanf statement is broke.
    Code:
    scanf(%9[^\n]s, name);//Leave space for null character.
    Salem and eslam like this.
    Quote Originally Posted by anduril462 View Post
    Now, please, for the love of all things good and holy, think about what you're doing! Don't just run around willy-nilly, coding like a drunk two-year-old....
    Quote Originally Posted by quzah View Post
    ..... Just don't be surprised when I say you aren't using standard C anymore, and as such,are off in your own little universe that I will completely disregard.
    Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.

  4. #4
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    Dude where is the string.h?
    eslam likes this.

  5. #5
    ATH0 quzah's Avatar
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    Quote Originally Posted by guitargod View Post
    Dude where is the string.h?
    Probably the same place stdio.h is.


    Quzah.
    Hope is the first step on the road to disappointment.

  6. #6
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    Quote Originally Posted by guitargod View Post
    Dude where is the string.h?
    Quote Originally Posted by guitargod View Post
    anything with a floating point is automatically a double foe the computer. here you say 3.14f, it means.. oh wait, it's not double, it is float. use it as a float!
    also check out this discussion -
    c tricky code
    Everytime you post, an angel dies.....
    eslam and CommonTater like this.
    Quote Originally Posted by anduril462 View Post
    Now, please, for the love of all things good and holy, think about what you're doing! Don't just run around willy-nilly, coding like a drunk two-year-old....
    Quote Originally Posted by quzah View Post
    ..... Just don't be surprised when I say you aren't using standard C anymore, and as such,are off in your own little universe that I will completely disregard.
    Warning: Some or all of my posted code may be non-standard and as such should not be used and in no case looked at.

  7. #7
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    Code:
    #include <stdio.h>
    #include <string.h> <--- needed for strcmp()
    
    int main( void ) <--- not main()
      {
        char name[10];
        short age;
     
        printf("enter your age.\n");
        scanf("%d",&age);
        fflush(stdin); <----- remove this! 
        printf("please enter your name.\n");
        scanf("%[^\n]",name);
    
        if (strcmp(name, "bruce") == 0 && (age >13 && age <18))  <--- strcmp() returns 0 when match is found
         printf("u are the chosen one");                         <--- || is incorrect for range checking            
        else
          printf("u are nothing");   <---- learn to spell 
    
        getchar();
       return 0; <--- main returns an errorlevel to the Operating System
      }
    Salem likes this.

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