Daviddoria: Created page with '==DoWhile.cpp== #include #include #include #include #include int main(int argc, char *argv[]) { if(argc !…'

2010-06-23T12:08:56Z

Created page with '==DoWhile.cpp== <source lang="cpp"> #include <iostream> #include <string> #include <cstdlib> #include <sstream> #include <fstream> int main(int argc, char *argv[]) { if(argc !…'

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==DoWhile.cpp==
<source lang="cpp">
#include <iostream>
#include <string>
#include <cstdlib>
#include <sstream>
#include <fstream>

int main(int argc, char *argv[])
{
if(argc != 2)
{
std::cout << "Required parameters: InputFilename" << std::endl;
exit(-1);
}

std::string InputFilename = argv[1];

std::ifstream in(InputFilename.c_str());

if (!in)
{
std::cout << "File " << InputFilename << " not found" << std::endl;
exit(-1);
}

#if 0 //bad way
std::string line;
while(getline(in, line))
{
if(line[0] == '#') //we found the first line we were looking for, need to switch to the next loop
{
break;
}
}

//start reading data - //woops - we missed the first line of interests (here the line starting with #)
while(getline(in, line))
{
std::cout << line << std::endl;
}
#else
std::string line;

while(getline(in, line))
{
if(line[0] == '#') //we found the first line we were looking for, need to switch to the next loop
{
break;
}
}

//start reading data - //woops - we missed the first line of interests (here the line starting with #)
do
{
std::cout << line << std::endl;
}while(getline(in, line));
#endif

return 0;
}

</source>

CPP/Loops/DoWhile - Revision history

Daviddoria: Created page with '==DoWhile.cpp== #include #include #include #include #include int main(int argc, char *argv[]) { if(argc !…'