check_sizeof

check_sizeof(type, headers = nil, opts = "", &b)
Instance Public methods

Returns the size of the given type. You may optionally specify additional headers to search in for the type.

If found, a macro is passed as a preprocessor constant to the compiler using the type name, in uppercase, prepended with SIZEOF_, followed by the type name, followed by =X where âXâ is the actual size.

For example, if check_sizeof('mystruct') returned 12, then the SIZEOF_MYSTRUCT=12 preprocessor macro would be passed to the compiler.

doc_ruby_on_rails
2015-04-17 21:05:48
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