blob: 6ec750ee65b948cd59648d13ae086fb56f6661a2 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
/* test4: test floats and draw an ASCII mandelbrot
from: https://miyuki.github.io/2017/10/04/gcc-archaeology-1.html
(original authorship missing) */
int main( )
{
float r, i, R, I, b;
int n;
for( i = -1; i < 1; i += .06, putnl( ) ) {
for( r = -2; I = i, (R = r) < 1; r += .03, putchar( n + 31 ) ) {
for( n = 0; b = I * I, 26 > n++ && R * R + b < 4;
I = 2 * R * I + i, R = R * R - b + r );
}
}
exit( EXIT_SUCCESS );
}
|