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### D.14.10 Additional `mpfr` notes

The `eq` and `urandomb` functions depend not only on the `mpfr` library but on the `gmp` library (http://ftp.gnu.org/gnu/gmp). It’s possible for them to be unavailable on a host without `gmp` even if the rest of the `mpfr` library is properly configured.

The file `mpfr.c` in the `avram` source tree exports a couple of functions that may be of use to C hackers interested in further development of `avram` with `mpfr`. The functions `avm_mpfr_of_list` and `avm_list_of_mpfr` convert between the native representation for `mpfr` numbers and the caching list representation used by `avram` (Type Conversions). This conversion is non-trivial because the numbers are not stored contiguously.

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