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I have this constant:
#define MAX_DATE 2958465L What does the L mean in this sense?
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The C Programming Language says: An integer constant like 1234 is an int . A long constant is written with a terminal l (ell) or L , as in 123456789L ; an integer constant too big to fit into an int will also be taken as a long .
Because R's integers are 32-bit long integers and "L" therefore appears to be sensible shorthand for referring to this data type.
The l-value expression designates (refers to) an object. A non-modifiable l-value is addressable, but not assignable. A modifiable l-value allows the designated object to be changed as well as examined.
Integer literals are numbers that do not have a decimal point or an exponential part. They can be represented as: Decimal integer literals. Hexadecimal integer literals. Octal integer literals.
It is a long integer literal.
Integer literals have a type of int by default; the L suffix gives it a type of long (Note that if the value cannot be represented by an int, then the literal will have a type of long even without the suffix).
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In this scenario the Ldoes nothing.
The L after a number gives the constant the long type, but because in this scenario the constant is immediately assigned to an int variable nothing is changed.
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