I have an irregular list where the data look like this:
[Number] [Number]
[Number] [Number] [Number]
[Number] [Number] [Number]
[Number] [Number] [Number]
[Number] [Number] [Number]
[...]
Notice that some lines have 2 numbers, some have 3 numbers. Currently I have my input code look like these
inputFile >> a >> b >> c;
However, I want to it ignore lines with only 2 numbers, is there a simple work around for this? (preferably without using string manipulations and conversions)
Thanks
Use getline and then parse each line seprately:
#include <iostream>
#include <sstream>
#include <string>
int main()
{
std::string line;
while(std::getline(std::cin, line))
{
std::stringstream linestream(line);
int a;
int b;
int c;
if (linestream >> a >> b >> c)
{
// Three values have been read from the line
}
}
}