| 1 | #include <stdio.h> |
| 2 | #include <math.h> |
| 3 | #include <time.h> |
| 4 | #define PI 3.141592653589793 |
| 5 | #include <termios.h> |
| 6 | #include <sys/ioctl.h> |
| 7 | #include <stdlib.h> |
| 8 | #include <unistd.h> |
| 9 | |
| 10 | int main(void) { |
| 11 | //get size of terminal |
| 12 | int lines = 20; |
| 13 | int cols = 20; |
| 14 | /*FILE *p; |
| 15 | p = popen("stty size", "r"); |
| 16 | fscanf(p, "%d %d", &lines, &cols); |
| 17 | close((int)p);*/ |
| 18 | struct winsize ws; |
| 19 | if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 && |
| 20 | ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1 && |
| 21 | ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1) || |
| 22 | ws.ws_col == 0) { |
| 23 | lines = 25; |
| 24 | cols = 80; |
| 25 | } else { |
| 26 | lines = ws.ws_row; |
| 27 | cols = ws.ws_col; |
| 28 | } |
| 29 | |
| 30 | char *format; |
| 31 | asprintf(&format,"%%0.%dlf\r",cols-2); |
| 32 | |
| 33 | |
| 34 | double pi=0, i=1; |
| 35 | |
| 36 | while(1) { |
| 37 | printf(format, pi); |
| 38 | pi+=(4/i); |
| 39 | i+=2; |
| 40 | pi-=(4/i); |
| 41 | i+=2; |
| 42 | } |
| 43 | //system("PAUSE"); |
| 44 | //return EXIT_SUCCESS; |
| 45 | } |