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+Equivalent to C's `signed long` (`long`) type.
+
+This type will always be [`i32`] or [`i64`]. Most notably, many Linux-based systems assume an `i64`, but Windows assumes `i32`. The C standard technically only requires that this type be a signed integer that is at least 32 bits and at least the size of an [`int`], although in practice, no system would have a `long` that is neither an `i32` nor `i64`.
+
+[`int`]: type.c_int.html
+[`i32`]: ../../primitive.i32.html
+[`i64`]: ../../primitive.i64.html