// input.txt:
"A nice string"
"Another nice string" "string 3"
// blah.cpp:
void some_func()
{
std::string temp;
std::ifstream file("input.txt");
while(file >> temp)
std::cout << temp << std::endl;
}
std::ifstream using other separating character than space (' ')
Author
Is it possible to use another character than whitespace as a separating character?
Like this:
So this would print:
A nice string
Another nice string
string 3
Is this possible?
You cannot change the delimiter used by the built-in operator>>, to the best of my knowledge.
You might want std::getline, which gets up until a delimiter.
That or you could make your own function, perhaps something along the lines of the following:
Of course a robust version would handle \ as an escape sequence, allow ' as an alternate delimiter, ...
You might want std::getline, which gets up until a delimiter.
That or you could make your own function, perhaps something along the lines of the following:
std::istream &get_quoted(std::istream &source, std::string &str) { char c = 0; source >> c; // >> to skip whitespace if ( c == '"' ) { // if we read a ", store up to the next " in str std::getline( source, str, '"' ); } else { // if we read something that's not a ", // put back whatever we read and read until whitespace source.unget(); source >> str; } return source;}Of course a robust version would handle \ as an escape sequence, allow ' as an alternate delimiter, ...
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