public member function
<fstream>
Get the associated filebuf object
Return Value
A pointer to the internal filebuf object.
Example
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// copy a file using file stream buffers
#include <fstream> // std::filebuf, std::fstream
#include <cstdio> // EOF
int main () {
std::fstream src,dest;
src.open ("test.txt");
dest.open ("copy.txt");
std::filebuf* inbuf = src.rdbuf();
std::filebuf* outbuf = dest.rdbuf();
char c = inbuf->sbumpc();
while (c != EOF)
{
outbuf->sputc (c);
c = inbuf->sbumpc();
}
dest.close();
src.close();
return 0;
}
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Data races
Accesses the stream object.
Concurrent access to the same stream object may cause data races.
Exception safety
Strong guarantee: if an exception is thrown, there are no changes in the stream buffer.
See also
- filebuf
- File stream buffer (class)
- ios::rdbuf
- Get/set stream buffer (public member function)