terminal size in c

To get the terminal size in C, you can use the ioctl function from the ioctl.h header file. Here is an example code snippet:

#include <sys/ioctl.h>
#include <stdio.h>

int main() {
    struct winsize w;
    ioctl(0, TIOCGWINSZ, &w);
    int rows = w.ws_row;
    int cols = w.ws_col;
    printf("Terminal size: %d rows x %d columns\n", rows, cols);
    return 0;
}

This code snippet uses the ioctl function with the TIOCGWINSZ argument to get the terminal size. The struct winsize is used to store the terminal size information. The ws_row and ws_col members of the struct winsize represent the number of rows and columns respectively. Finally, the printf function is used to display the terminal size in rows and columns.