Use the specified buffer of the specified numBytes capacity as the input/output buffer for this streambuf. If buffer == 0, the buffer is dynamically allocated with a default size. If both buffer and numBytes are zero a 1‐byte buffer is dynamically allocated. The behavior is undefined if any I/O has preceded this call, and unless the buffer is uninitialized before this call.

Synopsis

Declared in <bdls_fdstreambuf.h>

virtual
FdStreamBuf*
setbuf(
    char_type* buffer,
    std::streamsize numBytes) override;

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