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*rwb-isam* is a sophisticated base-table implementation built on
WB and SCM which uses binary numerical formats for keys and non-key
fields. It supports IEEE floating-point and fixed-precision integer
keys with the correct numerical collation order.

In addition to the types described for wb-table, rwb-isam supports the following types for keys and values:

r64 | Real represented by one IEEE 64.bit number. |

r32 | Real represented by one IEEE 32.bit number. |

s64 | Signed 64.bit integer. |

s32 | Signed 32.bit integer. |

s16 | Signed 16.bit integer. |

s8 | Signed 8.bit integer. |

u64 | Nonnegative 64.bit integer. |

u32 | Nonnegative 32.bit integer. |

u16 | Nonnegative 16.bit integer. |

u8 | Nonnegative 8.bit integer. |

Complex numbers are supported for non-key fields:

c64 | Complex represented by two IEEE 64.bit numbers. |

c32 | Complex represented by two IEEE 32.bit numbers. |