C++ boost::replace_all Slowed Me
I've just had myself into a complete frazzle, code yesterday was fast, rendering 120fps, the same code today was struggling to pass 11fps. And it had me pulling my hair out, of which I have little left to spare. The problem? I had been processing strings for specific patterns and only replacing them, so a variable in my engine might have the value "SCORE" and it'd replace the players score value directly into the std::string instance for display. I however decided I wanted to compound all these reserved words to allow any value to contain any replaced value and also contain formatting, so I could so something like "You have scored %SCORE% today" and it'd just place the number in place. I turned to boost for this, boost::replace_all, to be specific, and I had about 45 pattern matches which would try to replace any instance of the string in place. However, this function does not look a head if the predicate is present in the source string, it's in fac...