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  1.  
  2. #include <stdio.h>
  3.  
  4. int (*compose(int(*f)(), int(*g)()))() {
  5.     int h(int x) {
  6.         return f(g(x));
  7.     }
  8.     return &h;
  9. }
  10.  
  11. int dbl(int x) {
  12.     return x * 2;
  13. }
  14.  
  15. int sqr(int x) {
  16.     return x * x;
  17. }
  18.  
  19. int main() {
  20. 	printf("%d", compose(dbl, sqr)(5));
  21. 	return 0;
  22. }
  23.  
Runtime error #stdin #stdout 0s 9288KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/Ffcjmq
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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