JManip.cc File Reference

Example program to test I/O manipulators. More...

#include <string>
#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include "JLang/JManip.hh"
#include "Jeep/JParser.hh"
#include "Jeep/JMessage.hh"

Go to the source code of this file.

Functions
int	main (int argc, char *argv[])

Detailed Description

Example program to test I/O manipulators.

Author

mdejong

Definition in file JManip.cc.

Function Documentation

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 77 of file JManip.cc.

{
  using namespace std;
  using namespace JPP;

  int     debug;

  try {

    JParser<> zap;

    zap['d'] = make_field(debug)           = 1;

    zap(argc, argv);
  }
  catch(const exception &error) {
    FATAL(error.what() << endl);
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "CENTER <" << CENTER(12)   << value << ">" << endl;
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "FILL   <" << FILL(12,'.') << value << ">" << FILL() << endl;
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "RIGHT  <" << RIGHT(12)    << value << ">" << endl;
  }

  for (int value = 1; value < 1000000000; value *= 10) {
    cout << "LEFT   <" << LEFT(12)     << value << ">" << endl;
  }

  for (double value = 0.123456; value < 100000; value *= 10) {
    cout << "FIXED  <" << FIXED(12,6)  << value << ">" << endl;
  }


  {
    const double c = 12.34;

    const A a(c);
    const B b(c);

    cout << setprecision(3);

    cout << "A <" << a << ">" << endl;
    cout << "c <" << c << ">" << endl;
    cout << "B <" << b << ">" << endl;
    cout << "c <" << c << ">" << endl;

    setFormat<A>(JFormat_t(12, 3, std::ios::scientific));
    setFormat<B>(JFormat_t( 5, 2, std::ios::fixed));

    cout << "A <" << a << ">" << endl;
    cout << "c <" << c << ">" << endl;
    cout << "B <" << b << ">" << endl;
    cout << "c <" << c << ">" << endl;
  }
  {
    C c;

    cout << shortprint  << c << endl;
    cout << mediumprint << c << endl;
    cout << longprint   << c << endl;
  }
  {
    ostringstream os[2];
    
    const int i = 123456;
    
    os[0] << setw(12) << left << i;
    os[1] << LEFT(12) << i;

    ASSERT(os[0].str() == os[1].str(), "<" << os[0].str() << "> == <" << os[1].str() << ">");
  }
  {
    ostringstream os[2];
    
    const int i = 123456;
    
    os[0] << setw(12) << right << i;
    os[1] << RIGHT(12) << i;

    ASSERT(os[0].str() == os[1].str(), "<" << os[0].str() << "> == <" << os[1].str() << ">");
  }
  {
    ostringstream os[2];
    
    const int i = 123456;
    
    os[0] << setw(12) << setfill('0') << i;
    os[1] << FILL(12, '0') << i;

    ASSERT(os[0].str() == os[1].str(), "<" << os[0].str() << "> == <" << os[1].str() << ">");
  }
  {
    ostringstream os[2];
    
    const double x = 123.456;
    
    os[0] << setw(12) << setprecision(5) << fixed << x;
    os[1] << FIXED(12,5) << x;

    ASSERT(os[0].str() == os[1].str(), "<" << os[0].str() << "> == <" << os[1].str() << ">");
  }
  {
    ostringstream os[2];
    
    const double x = 123.456;
    
    os[0] << setw(12) << setprecision(2) << scientific << x;
    os[1] << SCIENTIFIC(12,2) << x;

    ASSERT(os[0].str() == os[1].str(), "<" << os[0].str() << "> == <" << os[1].str() << ">");
  }

  {
    vector<int> V = { 1, 2, 3, 4};

    cout << LAMBDA([v = V](ostream& out) { for (const auto& i : v) { out << " " << i; } }) << endl;
  }

  return 0;
}