std::basic_istream::peek
From cppreference.com
< cpp | io | basic istream
| int_type peek(); |
||
After constructing an std::basic_istream::sentry object with noskipws set to true, reads the next character from the input stream without extracting it.
Contents |
[edit] Parameters
(none)
[edit] Return value
If good() == true, returns the next character as obtained by rdbuf()->sgetc()
Otherwise, returns Traits::eof().
[edit] Example
#include <sstream> #include <iostream> int main() { std::istringstream s1("Hello, world."); char c1 = s1.peek(); char c2 = s1.get(); std::cout << "Peeked: " << c1 << " got: " << c2 << '\n'; }
Output:
Peeked: H got: H
[edit] See also
| extracts characters (public member function) | |
| unextracts a character (public member function) | |
