As In the data from the indicator to indicators work Is not allowed in C89, C99, what about C ++?
short answer: Implementation is not necessary to support such artists.
It may allow a reinterpret_cast
subject to certain rules (essentially: to change the object pointer and return the original pointers).
standard, [expr.reinterpret.cast] / 8:
Converting function pointer to object pointer type or vice versa is conditionally supported. The meaning of such a conversion is implementation-defined, except that if an implementation supports conversions in both directions, then one type of one type can be converted to another type and back, possibly with various CV-qualifications , The original indicator will receive the price. / P>
Non-embedded implementations generally allow the purposes of dynamic linking (like dlsym ()
). Strictly speaking, however, it is not necessary to work.
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