| John Kessenich | 88e22a6 | 2017-11-02 06:48:32 -0600 | [diff] [blame] | 1 | #define f1(i) ((i)*(i)) |
| 2 | #define I2(f, n) f(n) + f(n+1) |
| 3 | #define I3(f, n) I2(f, n) + f(n+2) |
| 4 | |
| John Kessenich | 1ea1b13 | 2018-05-24 18:11:47 -0600 | [diff] [blame] | 5 | #define FL_f1(i) ((i)*(i)) |
| 6 | #define FL_I2(f, n) f(n) + f(n+0.2) |
| 7 | #define FL_I3(f, n) FL_I2(f, n) + f(n+0.5) |
| 8 | |
| John Kessenich | 88e22a6 | 2017-11-02 06:48:32 -0600 | [diff] [blame] | 9 | void main() |
| 10 | { |
| 11 | int f1 = 4; |
| 12 | int f2 = f1; |
| 13 | int f3 = f1(3); |
| 14 | int f4 = I2(f1, 0); |
| 15 | int f5 = I3(f1, 0); |
| John Kessenich | 1ea1b13 | 2018-05-24 18:11:47 -0600 | [diff] [blame] | 16 | |
| 17 | highp float fl_f5 = FL_I3(FL_f1, 0.1); |
| John Kessenich | 88e22a6 | 2017-11-02 06:48:32 -0600 | [diff] [blame] | 18 | } |
| John Kessenich | 1ea1b13 | 2018-05-24 18:11:47 -0600 | [diff] [blame] | 19 | |
| 20 | // f5 = I3(f1, 0) |
| 21 | // = I2(f1, 0) + f1(0 + 2) |
| 22 | // = f1(0) + f1(0+1) + f1(0+2) |
| 23 | // = 0*0 + 1*1 + 2*2 |
| 24 | // = 5 |
| 25 | |
| 26 | // fl_f5 = FL_I3(FL_f1, 0.1) |
| 27 | // = FL_I2(FL_f1, 0.1) + FL_f1(0.1 + 0.5) |
| 28 | // = FL_f1(0.1) + FL_f1(0.1 + 0.2) + FL_f1(0.1 + 0.5) |
| 29 | // = 0.1*0.1 + 0.3*0.3 + 0.6*0.6 |
| 30 | // = 0.46 |