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// Operand Iterator Example (/src/examples/i2.cpp)
#include <math++/nodes.h>
#include <math++/reader.h>
#include <math++/printer.h>
#include <string>
#include <iostream>
#include <memory>
int main(int argc, char *argv[]) {
std::cout << "Operand Iterator example program (i1)" << std::endl;
try {
std::string exprStr(argc == 2 ? argv[1] : "1*2 + (3 + 4) + 5*1 + 6 + 1*7");
std::auto_ptr<math::TNode<double> >expr(math::TReader<double>::parse(exprStr));
std::cout << "input string: " << exprStr << std::endl
<< "reproduction: "
<< math::TPrinter<double>::print(expr.get())
<< std::endl;
std::cout << "iterating expression tree by operands:" << std::endl;
for (math::TNode<double>::operand_iterator i(expr.get()); i != i.end(); ++i) {
std::cout << "current node: "
<< math::TPrinter<double>::print(i.get())
<< std::endl;
}
} catch (const math::EMath& e) {
std::cout << "exception caught: " << e.reason() << std::endl;
return 1;
} catch (...) {
return 1;
}
return 0;
}
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