main.cc File Reference

Program entry point: parse the parameter file and run a SaddlePointProblem<2>. More...

#include "../include/step-6.h"
#include <iostream>

Include dependency graph for main.cc:

Functions
int	main (int argc, char **argv)
	Program entry point.

Detailed Description

Program entry point: parse the parameter file and run a SaddlePointProblem<2>.

The main() function is intentionally short. Its job is to

1. pick the parameter file name from the command line (defaulting to "project.prm" when no argument is given),
2. build a ParameterHandler and let SaddlePointProblem<2>::Parameters declare its entries on it,
3. parse the parameter file and read the values back into the Parameters object,
4. construct a SaddlePointProblem<2> problem and call its run() method, and
5. catch every exception so the program can print a diagnostic message before aborting.

Function Documentation

main()

int main	(	int	argc,
		char **	argv
	)

Program entry point.

Usage:

./step-6 [param-file]

If no parameter file is given on the command line, the default name "project.prm" is used. The chosen file must contain the entries declared by SaddlePointProblem::Parameters::declare_parameters().

The body of main is wrapped in a try/catch block: any std::exception thrown deeper in the program will be reported on std::cerr, and the program will return 1 instead of aborting silently. A second catch-all handler reports unknown exception types.

Parameters

[in]	argc	Number of command-line arguments.
[in]	argv	Command-line argument vector. argv[1], if present, is the path to the parameter file.

Returns

0 on successful execution, 1 on any uncaught exception.