I'm not seeing a noticeable difference between the initial llil2vec demonstration and this one w.r.t. total time. So, I searched the web and tried fast_io with success. It requires a C++20 capable compiler.

git clone --depth 1 https://github.com/cppfastio/fast_io

[download]

Add the header file above other includes and comment out the cstdio include line.

#include <fast_io.h>

//#include <cstdio>

[download]

Specify the path to the include folder. Also C++20.

clang++ -o llil2vec -std=c++20 -Wall -O3 llil2vec.cpp -I./fast_io/incl
+ude

[download]

Before C++11 results:

llil2vec (fixed string length=6) start
get_properties      CPU time : 1.62356 secs
emplace set sort    CPU time : 0.451718 secs
write stdout        CPU time : 0.923496 secs
total               CPU time : 2.99881 secs
total        wall clock time : 3 secs

[download]

C++20 + fast_io results:

llil2vec (fixed string length=6) start
get_properties      CPU time : 1.50394 secs
emplace set sort    CPU time : 0.430272 secs
write stdout        CPU time : 0.889239 secs
total               CPU time : 2.82348 secs
total        wall clock time : 3 secs

[download]

In reply to Re^4: Rosetta Code: Long List is Long (faster - vec - fast_io) by marioroy
in thread Rosetta Code: Long List is Long by eyepopslikeamosquito

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