i think is a buffer problem

[slyer4ever]

HII everyone !
i write a programme's code which can choose a word randomly from a txt file
then the user try to find a characater from the word if the typed character is in the word all the other similar Character will appear
here is my code just before the probleme is when i type a character the programme displays 2 times the same thing like this :

you still have 10 turn :
what is the secret word :
******
propose a character :A




you still have 9 turn :
what is the secret word :
******
propose a character :


you still have 8 turn :
what is the secret word :
******


propose a character :

the code :

#include <stdio.h> // include appropriate headers
#include <stdlib.h>
#include <string.h>


// use define's for constants
#define MAXWORD 100
#define FILENAME "test.txt"


int main(void) { // use void if you aren't using main's optional input parameters
    char word[MAXWORD];
    char wordtmp[MAXWORD];
    char carac=0;
    char t[MAXWORD];
    int pos = 1,counter=10,i=0,cpt=0;
    FILE* file = NULL;


    file = fopen(FILENAME, "r"); // use "r" not "r+" if you're just reading


    if (file == NULL) // deal with file error right here
    {
        fprintf(stderr, "Can't open %s.\n", FILENAME);
        return EXIT_FAILURE;
    }


    // use fgets return value to control the loop
    while (fgets(word, MAXWORD, file))
    {
        if (pos == 3)
        {
    strcpy(wordtmp,word);
            break; // exit the loop when you find the word
        }
        ++pos;
    }


    fclose(file);
     while(wordtmp[i]!='\0')
    {
        i++;
    }


    for(cpt=0;cpt<MAXWORD;cpt++)
    {
        t[cpt]='*';
    }


   do
{


    printf("you still have  %d turn : \n",counter);
    printf("what is the secret word : \n");


    for(cpt=0;cpt<i;cpt++)
    {
        if(carac==wordtmp[cpt])
        {
            t[cpt]=carac;
            counter++;


  printf("%c",t[cpt]);
        }
        else
        {
            printf("%c",t[cpt]);
        }


    }
    printf("\n");
    printf("propose a character   :");


scanf("%c",&carac);
    printf("\n \n");
counter--;




}while(counter>0);








    return EXIT_SUCCESS;
}

[oogabooga]

Your scanf is leaving the newline in the stream, which is being picked up the next time through the loop, causing the problem. Putting a space before %c in the scanf format will skip whitespace before reading a character, which should fix the problem.

BTW, you should remove all those comments. They were just to tell you the changes I made and do not make a lot of sense as real comments.

[slyer4ever]

Thank you again oogabooga