C++

Reference

<streambuf>

basic_streambuf

protected member function
<streambuf> <iostream>

std::basic_streambuf::gbump

void gbump (int n);
Advance get pointer
Adds n to the get pointer.

The get pointer (gptr) is the internal pointer that points to the current location in the array with the buffered portion of the controlled input sequence.

Parameters

n
Value by which to increase the get pointer.
This shall be a value such that gptr()+n is in the range between eback and egptr.

Return Value

none

Data races

Modifies the stream buffer object.
Concurrent access to the same stream buffer object may cause data races.

Exception safety

Basic guarantee: if an exception is thrown, the stream buffer is in a valid state.

Invalid arguments cause undefined behavior.

See also

basic_streambuf::setg
Set input sequence pointers (protected member function)
basic_streambuf::gptr
Pointer to current position of input sequence (protected member function)