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Update inflateBack() comments, since inflate() can be faster.

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Mark Adler 2013-02-23 20:12:20 -08:00
parent 51370f3656
commit 931aa25aea
1 changed files with 6 additions and 5 deletions
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zlib.h
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@ -1031,11 +1031,12 @@ ZEXTERN int ZEXPORT inflateBack OF((z_streamp strm,
out_func out, void FAR *out_desc)); out_func out, void FAR *out_desc));
/* /*
inflateBack() does a raw inflate with a single call using a call-back inflateBack() does a raw inflate with a single call using a call-back
interface for input and output. This is more efficient than inflate() for interface for input and output. This is potentially more efficient than
file i/o applications in that it avoids copying between the output and the inflate() for file i/o applications, in that it avoids copying between the
sliding window by simply making the window itself the output buffer. This output and the sliding window by simply making the window itself the output
function trusts the application to not change the output buffer passed by buffer. inflate() can be faster on modern CPUs when used with large
the output function, at least until inflateBack() returns. buffers. inflateBack() trusts the application to not change the output
buffer passed by the output function, at least until inflateBack() returns.
inflateBackInit() must be called first to allocate the internal state inflateBackInit() must be called first to allocate the internal state
and to initialize the state with the user-provided window buffer. and to initialize the state with the user-provided window buffer.