These are my solutions to the Project Euler problems, written in C++, Haskell, Clojure, Julia, and Rust.

Compile with make and then run the bin/test binary. Make sure you have GMP installed in /usr or /usr/local. The GMP header files and library files are necessary for the build. With Homebrew on macOS, this can be accomplished by running brew install gmp.

Compile with ghc Test -O and then run the Test binary.

I use lein-bin to produce the binary for the Clojure solutions. Run lein bin in the Clojure project folder, and then execute target/test. Or just run the solve functions in the REPL, if you prefer.

Invoke the test program with julia test.jl args. When testing solutions, test.jl will execute the solve function twice and timed the second time to avoid including JIT compilation time in the benchmark. This will make testing feel slower, so pay attention to the numbers.

Compile test.rs to get the test binary. Make sure to enable optimizations with -O. To keep the binaries small, enable dynamic linking with -C prefer-dynamic.

(Note: the Rust solutions use outdated syntax and no longer compile with the latest compiler.)

Run j/test.sh.

Run the test program with the -h option to see its usage message:

$ ./test -h
usage: test [-h | problem_number]

Run it with no arguments to test all solutions.

$ ./test
01:       233168 ... ok   (4.270000e-7 s)
02:      4613732 ... ok   (2.670000e-7 s)
...
(20 more test lines)
...
ok. 20 passed; 0 failed

Each line contains the problem number, the result the program produces, the success status, and the time the program took in seconds. The elapsed time is not meant to be an accurate benchmark (it executes the solve function only once), but it is useful for comparing the orders of magnitude of different implementations. At the end, the test program prints a summary of how many passed and how many failed.

Provide an integer argument to test a specific solution:

$ ./test 1
01:       233168 ... ok   (3.290000e-7 s)
$ ./test 42000
error: 42000: out of bounds
$ ./test abc
error: abc: not a uint

I've tried to make the testing programs consistent for all three languages, but there are a few variations.

© 2014 Mitchell Kember

Euler is available under the MIT License; see LICENSE for details.