Return a modifiable character buffer
Synopsis
Declared in header <boost/url/grammar/string_token.hpp>
virtual
char*
prepare(std::size_t n) = 0;Description
This function attempts to obtain a
character buffer with space for at
least n characters. Upon success,
a pointer to the beginning of the
buffer is returned. Ownership is not
transferred; the caller should not
attempt to free the storage. The
buffer shall remain valid until
this is destroyed.
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Note
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This function may only be called once. After invoking the function, the only valid operation is destruction. |