arr_del_test

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


void arr_del(void);
void arr_push(char);

char arr[100];


int main()
{
    initscr();

    int row, col;
    getmaxyx(stdscr, row, col);

    char ch;

    arr[0] = '\0';

    while(1) {
        ch = getch();
        if (ch == KEY_BACKSPACE)
            arr_del();
        else
            arr_push(ch);
        mvprintw(row/2-1, col/2, "%c", arr[strlen(arr)-1]);
        mvprintw(row/2, (col - strlen(arr))/2, "%s", arr);
        mvprintw(row/2+1, col/2, "%d", strlen(arr));
        refresh();
    }

    return 0;
}

void arr_del(void) {
    //int len = strlen(arr);
    arr[strlen(arr)-1] = '\0';
}

void arr_push(char ch) {
    int len = strlen(arr);
    arr[len] = ch;
    arr[len+1] = '\0';
}