62 lines
1.8 KiB
Ruby
62 lines
1.8 KiB
Ruby
class Muparser < Formula
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desc "C++ math expression parser library"
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homepage "https://beltoforion.de/article.php?a=muparser"
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url "https://github.com/beltoforion/muparser/archive/v2.2.6.1.tar.gz"
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sha256 "d2562853d972b6ddb07af47ce8a1cdeeb8bb3fa9e8da308746de391db67897b3"
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head "https://github.com/beltoforion/muparser.git"
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bottle do
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cellar :any
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sha256 "2a87b69702d3acb7f1e97cb090c891189465c8dc3692714361057dd8e586c4de" => :catalina
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sha256 "c0feb51e0b10602b323d46f49d898ebb4cb36e00dcee42963d61b6c7ca27c23a" => :mojave
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sha256 "611da2016012d77dbe1e5a9c85872cc8f8de23967b019ec039177b49fad2a0d1" => :high_sierra
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sha256 "d5d3fd87e54d300578836ed61e066ef08b665050d7986e46ed6995eeee819088" => :sierra
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end
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def install
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system "./configure", "--disable-debug",
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"--disable-dependency-tracking",
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"--prefix=#{prefix}"
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system "make", "install"
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end
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test do
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(testpath/"test.cpp").write <<~EOS
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#include <iostream>
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#include "muParser.h"
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double MySqr(double a_fVal)
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{
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return a_fVal*a_fVal;
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}
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int main(int argc, char* argv[])
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{
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using namespace mu;
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try
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{
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double fVal = 1;
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Parser p;
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p.DefineVar("a", &fVal);
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p.DefineFun("MySqr", MySqr);
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p.SetExpr("MySqr(a)*_pi+min(10,a)");
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for (std::size_t a=0; a<100; ++a)
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{
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fVal = a; // Change value of variable a
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std::cout << p.Eval() << std::endl;
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}
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}
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catch (Parser::exception_type &e)
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{
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std::cout << e.GetMsg() << std::endl;
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}
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return 0;
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}
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EOS
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system ENV.cxx, "-I#{include}", "-L#{lib}", "-lmuparser",
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testpath/"test.cpp", "-o", testpath/"test"
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system "./test"
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end
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end
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