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This makes it match sdssplitlen
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Because a char* and struct sdshdr pointer have a different alignment you
get the following warning when try to cast it directly:
warning: cast from 'sds' (aka 'char *') to 'struct sdshdr *' increases
required alignment from 1 to 8 [-Wcast-align]
To silence the warning we cast it to a void pointer first.
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An sds string can hold a much bigger value than an int can hold, but
since size_t is unsigned it can’t be used for this function. Using
ptrdiff_t limits the function to work on roughly 1 Exabyte long strings,
but if you need to work with longer ones you probably will have your
custom string library already.
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Use the returned value of sdsheader directly in the return call instead
of using a temporary variable since we’re not doing pointer arithmetic
directly in the sdslen and sdsavail functions anymore.
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All source code should be indented with tabs and aligned with spaces.
When talking about line length a tab equals 4 spaces.
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Remove the unnecessary casting of the pointer arithmetic result in
sdslen and sdsavail to a void pointer since it will already be an
sdshdr struct.
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This reverts commit c636fc6cd25e455a75dca24ac08ba736f62db6c8.
This commit was just utterly senseless, all it does is make the code
less clear for literally nothing.
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It’s reserved for the implementation and shouldn’t be used.
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