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Data-Types.md

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title Data Types
parent Language Syntax
nav_order 1
permalink /Features/Language/Data-Types

New Data Types

twinBASIC introduces several new data types to enhance your programming capabilities. Each has a reference page of its own, linked below.

LongPtr

Meant primarily to handle pointers, LongPtr is a 4-byte (32 bits) signed integer in 32bit mode, and a signed 8-byte integer (64 bits) in 64bit mode. See LongPtr.

LongLong

A signed 8-byte (64 bits) integer, ranging from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807. Note that this type is available in both 32bit and 64bit mode (VBA restricts it to 64bit mode). See LongLong.

Decimal

In twinBASIC, Decimal is implemented as a full, regular data type, in addition to use within a Variant. This is a 16-byte (128 bits) type which holds a 12-byte (96 bits) integer with variable decimal point scaling and sign bit information. Values range from -79,228,162,514,264,337,593,543,950,335 to 79,228,162,514,264,337,593,543,950,335. See Decimal.

Type Support

All of the datatype management features also exist for these types:

  • DefDec/DefLngLng/DefLngPtr - Default type declarations
  • CDec/CLngLng/CLngPtr - Type conversion functions
  • vbDecimal/vbLongLong - Type check constants. VarType of a LongPtr gives vbLong in a 32bit build and vbLongLong in a 64bit build.