| 44 | } // namespace |
| 45 | |
| 46 | bool CastToBool(const valtype& vch) |
| 47 | { |
| 48 | for (unsigned int i = 0; i < vch.size(); i++) |
| 49 | { |
| 50 | if (vch[i] != 0) |
| 51 | { |
| 52 | // Can be negative zero |
| 53 | if (i == vch.size()-1 && vch[i] == 0x80) |
| 54 | return false; |
| 55 | return true; |
| 56 | } |
| 57 | } |
| 58 | return false; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Script is a stack machine (like Forth) that evaluates a predicate |