std::basic_istream::gcount() in C++ with Examples
The std::basic_istream::gcount() is used to count the characters in the given string. It returns the number of characters extracted by the last unformatted input operation. The unformatted input operation is returned by these function: get(), getline(), ignore(), peek(), read(), etc.
Header File:
<iostream>
Syntax:
streamsize gcount() const
Parameter: This method doesn’t accepts any parameter.
Return Value: It returns the number of characters extracted by the last unformatted input operation.
Below is the program to illustrate std::basic_istream::gcount():
Program 1:
// C++ code to illustrate std::gcount() #include <bits/stdc++.h> using namespace std; // Driver Code int main() { // Initialise array of characters char arr[20]; // Declare string stream istringstream stream("w3wiki"); // Read the string in string stream stream.read(arr, sizeof arr); // Print the count of characters in // string "w3wiki" cout << "The count of characters" << " in the string " << " is " << stream.gcount() << endl; return 0; } |
Output:
The count of characters in the string is 13
References: http://www.cplusplus.com/reference/istream/basic_istream/gcount/