zlib::deflate_stream::upper

zlib::deflate_stream::upper_bound

Returns the upper limit on the size of a compressed block.

Synopsis

std::size_t
upper_bound(
    std::size_t sourceLen) const;

Description

This function makes a conservative estimate of the maximum number of bytes needed to store the result of compressing a block of data based on the current compression level and strategy.

Parameters

Name	Description
`sourceLen`	The size of the uncompressed data.

Return Value

The maximum number of resulting compressed bytes.