/* A program that removes a certain character from a string of words.*/

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

#define MAX 20              //array size

int main()
{
	char a[MAX];			//primary array
	char rmv;               //removal character

    FILE* outfile;
	char* mode = "w"; //w for write/create mode
	char outfileName[] = "assign11.out";


	void rmchr ( char *a, char rmv);        //function to remove characters

	printf("Please input a string and character to remove: ");
    scanf("%s %c", a, &rmv);
    printf("\nYour string before removal: %s\n", a);
    rmchr(a, rmv);
    printf("Your string after removal: %s", a);d


	outfile = fopen(outfileName, mode);
        if(outfile == NULL)
        {
            printf("Error, please try again.\n");
        }

	fprintf(outfile, "%s\n", a);
	fclose(outfile);
	return 0;
}

void rmchr ( char *a, char rmv)             //function to remove characters
{
    char temp[MAX];			//temp array

	char *ptr1= a;				//primary pointer
	char *ptr2= temp;           //temp pointer
	while (*ptr1 != '\0')
        if (*ptr1 != rmv)
        {
            *ptr2 = *ptr1;
            ptr1++;
            ptr2++;
        }
        else
            ptr1++;
    if (*ptr1 == '\0')
        *ptr2 = *ptr1;
    if (*ptr2 == '\0')
        strcpy(a,temp);
}