# Boost.Preprocessor - Reference

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# Boost.Preprocessor

## Reference

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# #include <boost/preprocessor/arithmetic/mul.hpp>

## #define BOOST_PP_MUL(X,Y)

Expands to the product of `X` and `Y`.

Both `X` and `Y` must expand to integer literals in the range [0, BOOST_PP_LIMIT_MAG].

For example, `BOOST_PP_MUL(4,3)` expands to `12` (a single token).

### Uses

- BOOST_PP_WHILE()

### Test

- arithmetic_test.cpp

## #define BOOST_PP_MUL_D(D,X,Y)

Can be used inside BOOST_PP_WHILE().

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Revised

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