35 lines
464 B
C++
35 lines
464 B
C++
#ifdef HAVE_CONFIG_H
|
|
# include <config.h>
|
|
#endif
|
|
|
|
#ifdef HAVE_WINDOWS_H
|
|
# include <windows.h>
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <simgear/compiler.h>
|
|
#if defined( __APPLE__)
|
|
# include <OpenGL/OpenGL.h>
|
|
#else
|
|
# include <GL/gl.h>
|
|
#endif
|
|
|
|
int main() {
|
|
GLfloat a, t;
|
|
|
|
a = 1.0;
|
|
|
|
do {
|
|
printf("a = %.10f\n", a);
|
|
a = a / 2.0;
|
|
t = 1.0 + a;
|
|
} while ( t > 1.0 );
|
|
|
|
a = a + a;
|
|
|
|
printf("Estimated GLfloat epsilon = %.10f\n", a);
|
|
|
|
return(0);
|
|
}
|