NAME¶

std::ostrstream::pcount - std::ostrstream::pcount

Synopsis¶

int pcount() const;

Returns the number of characters that were output in the put area of the associated
std::strstreambuf. Effectively calls rdbuf()->pcount()

Parameters¶

(none)

Return value¶

The number of characters in the put area, or zero if nothing was output.

Example¶

// Run this code

#include <strstream>
#include <iostream>

int main()
{
std::ostrstream dyn; // dynamically-allocated output buffer
dyn << "Test: " << 1.23 << std::ends;
std::cout << "The size of the output is " << dyn.pcount()
<< " and it holds \"" << dyn.str() << "\"\n";
dyn.freeze(false);

char buf[10];
std::ostrstream user(buf, 10); // user-provided output buffer
user << 1.23; // note: no std::ends
std::cout.write(buf, user.pcount());
std::cout << '\n';
}

Output:¶

The size of the output is 11 and it holds "Test: 1.23"
1.23

See also¶

returns the next pointer minus the beginning pointer in the output sequence:
pcount the number of characters written
(public member function of std::strstreambuf)