Add FFI::offsetof() #17102
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Add FFI::offsetof() #17102
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This is useful for a couple of different applications: - Some object oriented / generic features are implemented by using field offsets (e.g. container_of like in the Linux kernel). - Tracking extra allocation data, this is where the first "offsetof()" feature request comes from: https://bugs.php.net/bug.php?id=79066 - Serialization/deserialization purposes with direct pointer arithmetic
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Technically already possible with getStructFieldOffset... but I missed this |
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I don't know if you think this is useful too.
I think it is useful for a couple of different applications:
offsets (e.g. container_of like in the Linux kernel).
feature request comes from: https://bugs.php.net/bug.php?id=79066
Would resolve https://bugs.php.net/bug.php?id=79066