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#include "tclap/CmdLine.h"
#include <iterator>
#include <algorithm>
// Define a simple 3D vector type
template<typename T, size_t LEN>
struct Vect : public TCLAP::StringLikeTrait {
//typedef TCLAP::StringLike ValueCategory;
T v[LEN];
// operator= will be used to assign to the vector
Vect& operator=(const std::string &str)
{
std::istringstream iss(str);
for (size_t n = 0; n < LEN; n++) {
if (!(iss >> v[n])) {
std::ostringstream oss;
oss << " is not a vector of size " << LEN;
throw TCLAP::ArgParseException(str + oss.str());
}
}
if (!iss.eof()) {
std::ostringstream oss;
oss << " is not a vector of size " << LEN;
throw TCLAP::ArgParseException(str + oss.str());
}
return *this;
}
std::ostream& print(std::ostream &os) const
{
std::copy(v, v + LEN, std::ostream_iterator<T>(os, " "));
return os;
}
};
int main(int argc, char *argv[])
{
TCLAP::CmdLine cmd("Command description message", ' ', "0.9");
TCLAP::ValueArg< Vect<double, 3> > vec("v", "vect", "vector",
true, Vect<double, 3>(),
"3D vector", cmd);
try {
cmd.parse(argc, argv);
} catch(std::exception &e) {
std::cout << e.what() << std::endl;
return EXIT_FAILURE;
}
vec.getValue().print(std::cout);
std::cout << std::endl;
}
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