Return the on-disk size of the byte range [first, last)].
Declared in <bdls_fdstreambuf.h>
std::streamoff
getOffset(
char* first,
char* last) const;Return the number of bytes that the data in the range specified by [first, last)] will fill when written to the file descriptor. Note that on Unix, or for a binary file on Windows, this value will be last - first, but for on Windows in text mode, extra bytes are added when `
would be written to the file descriptor as r
`.
the on-disk byte count for the range [first, last)]
| Name | Description |
|---|---|
| first | beginning of the character range |
| last | end of the character range (exclusive) |