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  1. #include <iostream>
  2. #include <cstdio>
  3. #include <cstring>
  4.  
  5. void operator "" _bf (const char* code, size_t len) {
  6. 	// see ideone.com/sGPtvn
  7. 	char* m      = (char*) malloc(100 *sizeof(char));
  8. 	int*  cs     = (int*)  malloc(10  *sizeof(int ));
  9.  
  10. 	memset(m, 0, sizeof(m));
  11.  
  12. 	int i = 0, mi = 0, ci = -1;
  13.  
  14. 	while(i<len){
  15. 		switch(code[i]) 
  16. 		{
  17. 			case '+':
  18.         		m[mi]++;
  19.         	break;
  20.     		case '-':
  21.         		m[mi]--;
  22.         	break;
  23.     		case '<':
  24.         		mi--;
  25.         	break;
  26.     		case '>':
  27.         		mi++;
  28.         	break;
  29.     		case ',':
  30.         		m[mi] = getchar();
  31.         	break;
  32.     		case '.':
  33.         		putchar(m[mi]);
  34.         	break;
  35.     		case '[':
  36.         		cs[++ci] = i;
  37.         	break;
  38.     		case ']':
  39.         		if (m[mi]==0){
  40.         				ci--;
  41.         			} else
  42.         			{
  43.         		  		i = cs[ci];
  44.         			}
  45.         	break;
  46. 		}
  47. 		i++;
  48. 	}
  49. }
  50.  
  51. int main() {
  52. 	"++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>."_bf;
  53. 	return 0;
  54. }
Success #stdin #stdout 0s 3460KB
comments (?)
stdin 
Standard input is empty
stdout 
Hello World!
https://ideone.com/WzN4D8
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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