[ < ] | [ > ] |  | [ << ] | [ Up ] | [ >> ] |  |  |  |  | [Top] | [Contents] | [Index] | [ ? ]

### 6.2.5 Real type

GPC does not support BP's 6-byte ``Real'` type. It supports ``Single'`, ``Double'` and ``Extended'` which, at least on the IA32 and some other processors, are compatible to BP.

For BP's 6-byte ``Real'` type, GPC's ``System'` unit provides an emulation, called ``BPReal'`, as well as conversion routines to GPC's ``Real'` type (which is the same as ``Double'`), called ``RealToBPReal'` and ``BPRealToReal'`. You'll probably only need them when reading or writing binary files containing values of the BP 6-byte real type. There are no operators (e.g., ``+'`) available for ``BPReal'`, but since GPC supports operator overloading, you could define them yourself (e.g., convert to ``Real'`, do the operation, and convert back). Needless to say that this is very inefficient and should not be done for any serious computations. Better convert your data after reading them from the file and before writing them back, or simply convert your data files once (the other types are more efficient even with BP on any non-prehistoric processor, anyway).

This document was generated by Frank Heckenbach on May, 10 2002 using texi2html