BloombergLP::bdlsb::FixedMemInStreamBuf

Name

Description

std::streambuf

Name

Description

FixedMemInStreamBuf [constructor]

Create a FixedMemInStreamBuf that provides access to the character sequence in the specified buffer of the specified length. The behavior is undefined unless buffer != 0 && length > 0 or length == 0.

~FixedMemInStreamBuf [destructor] [virtual]

Destroy this stream buffer.

data

Return the address of the non‐modifiable character buffer held by this stream buffer.

length

Return the number of characters from the current input position to the end of the stream buffer. The function returns the same value as seekoff(0, bsl::ios_base::beg). The length is modified by a call to seekpos, seekoff or by reading characters from the buffer.

pubsetbuf

Reinitialize this stream buffer to use the specified character buffer having the specified length. Return the address of this modifiable stream buffer. The behavior is undefined unless buffer != 0 && length > 0 or length == 0. Upon reinitialization for use of the new buffer, neither the content nor the next input position indicator is preserved. Note that buffer is held but not owned.

pubsetbuf

Reinitialize this stream buffer to use the specified read‐only character buffer having the specified length.

Name

Description

seekoff [virtual]

Set the position indicator to the relative specified offset from the base position indicated by the specified way and return the resulting absolute position on success or pos_type(‐1) on failure. Optionally specify which area of the stream buffer. The seek operation will fail if which does not include the flag bsl::ios_base::in or if the resulting absolute position is less than zero or greater than the value returned by length.

seekpos [virtual]

Set the position indicator to the specified position and return the resulting absolute position on success or pos_type(‐1) on failure. Optionally specify which area of the stream buffer. The seekpos operation will fail if which does not include the flag bsl::ios_base::in or if position is less then zero or greater than the value returned by length.

setbuf [virtual]

Reinitialize this stream buffer to use the specified character buffer having the specified length. Return the pointer providing modifiable access to this stream buffer.

setbuf

Reinitialize this stream buffer to use the specified character buffer having the specified length. Return the pointer providing modifiable access to this stream buffer. The behavior is undefined unless `buffer != 0 && length > 0` or length == 0`. Upon re‐initialization for use of the new buffer, neither the content nor the next input position indicator are preserved. Note that `buffer is held but not owned.

showmanyc [virtual]

Return the number of characters currently available for reading from this stream buffer, or ‐1 if there are none.

xsgetn [virtual]

Read the specified length number of characters into the specified destination. Return the number of characters successfully read. The behavior is undefined unless 0 <= length.