need help with fgets

This is a discussion on need help with fgets within the C Programming forums, part of the General Programming Boards category; well my fgets wont work...it goes directly to the next printf Code: case 2: printf("Enter text:"); fgets(text, sizeof(text), stdin); p ...

  1. #1
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    need help with fgets

    well my fgets wont work...it goes directly to the next printf

    Code:
    case 2: 
    printf("Enter text:");
    fgets(text, sizeof(text), stdin);
    p = strchr( text, '\n' );
    if ( p != NULL ) *p = '\0';
    printf("\nblah blah blah");
    Sleep(3000);
    ....
    ....
    It dosnt let me enter any text...anyone knows why?

    thanks

  2. #2
    ATH0 quzah's Avatar
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    14,826
    Because your switch isn't hitting case 2?

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

  3. #3
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    huh? what do you mean? here is what i get

    Code:
    2
    Enter text:
    blah blah blah
    i typed 2...so it went to case 2 and then it said Enter text: but it wont let me any time to type anything...it prints blah blah blah right away...

    thanks

  4. #4
    ATH0 quzah's Avatar
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    You probably have a newline character left over in your input buffer then. Post more of your code.

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

  5. #5
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    ok

    Code:
    #include <stdio.h>
    #include <time.h>
    #include <string.h>
    #include <windows.h>
    #include <conio.h>
    
    
    int text1(void);
    int text2(void);
    int text3(void);
    int text4(void);
    int text5(void);
    
    int main (void)
    {
    char text[500];
    char *p;
    long start;
    long end;
    int ans;
    int display;
    
    printf("Please select one of the two following choice\n\n");
    printf("1) Show text\n");
    printf("2) Enter a text\n");
    scanf("%d", &ans);
    
    switch (ans)
    {
    case 1:
    printf("Which text do you want to display?\n");
    printf("1) Text 1\n");
    printf("2) Text 2\n");
    printf("3) Text 3\n");
    printf("4) text 4\n");
    printf("5) Text 5\n");
    scanf("%d", &display);
    
    switch (display)
    {
    case 1: //text1();
    break;
    case 2: //text2();
    break;
    case 3: //text3();
    break;
    case 4: //text4();
    break;
    case 5: //text5();
    default: printf("Invalid input\n");
    break;
    }
    
    case 2:
    printf("Enter text:");
    fgets(text, sizeof(text), stdin);
    p = strchr( text, '\n' );
    if ( p != NULL ) *p = '\0';
    printf("\nblah blah blah");
    Sleep(3000);
    ...
    ...

  6. #6
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    sorry the code looks bad a little...

  7. #7
    and the hat of wrongness Salem's Avatar
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    Yeah, you're mixing scanf with fgets

    Do one of these two things

    Code:
    scanf("%d", &ans);
    while ( getchar() != '\n' );  /* remove excess chars */
    Or
    Code:
    fgets(text, sizeof(text), stdin);
    sscanf( text, "%d", &ans);

  8. #8
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    ok thanks it works fine now.

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