[Issue 7442] ctRegex!`\p{Letter}` uses a lot memory in compilation

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=7442



--- Comment #5 from Don <clugdbug at yahoo.com.au> 2012-04-13 07:35:32 PDT ---
(In reply to comment #4)
> 15000 ? Wow. At any rate I tried hard to make it so that the thing never
> reallocates unless required (but CTFE has no support for assumeSafeAppend) so
> these should mostly be an in-place appends.
> 
> Still I'll recheck if the R-T version is fast/slow maybe I missed something.

By the way, if you go into the compiler source, file interpret.c, line 34 is
#define SHOWPERFORMANCE 0
If you change that 0 to 1, and then recompile, it will tell you some basic CTFE
stats, eg how many assignments it performed.

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