The different integer types designate their width in bits. They are not declared as signed or unsigned. Instead their value is the result of either signed or unsigned operations.
byte - 8 bits word - 32 bits parcel - 16 bits cell - 64 bits
Integer constants can be decimal, hexadecimal, octal, or binary. The latter three formats respectively use prefixes "#", "8#", and "2#". They can also have a lead plus or minus sign or a tilde which denotes a logical complement. Underscores can be used within constants for formatting.
44 -3 ~#F 2#1001_0011 8#555
Floating Point types are either signed single or double precision.
single - 32 bits double - 64 bits
Floating point constants can be written as decimal or hexadecimal values. A pound sign prefix denotes a hexadecimal value. A lead plus or minus sign may also be used. They can also be written in scientific notation.
3.14159 1e-10 #1.234p3
Strings consist of a sequence of 8 bit characters and thier length may vary. Memory for strings is allocated as needed and is automatically managed. The null (value zero) character may be included in a string. String constants can be enclosed in single or double quotes. An integer value can also be set to a single quoted character.
"alpha" 'c' "" "don't"
The internal String encoding is devised to optimize performance. The Gilda Run Time system includes a high performance memory manager for strings.
Numeric variables can be initialized to a given value or else they default to zero. You can use a question mark to denote an unknown value; in which case the memory will be unitinitialized. This intended for use in performance sensitive procedures, particularly when using arrays. Strings always contain a value and default to an empty string.
This is an example of various primitive type declarations. It declares variables that are local to a method.
local I = 1 word, &Initialized to 1. D double, &Initialized to 0. A = ? parcel, &Uninitialized array of 16 bit values. S string, &Initialized to an empty string. T = "!" string :Initialized to an exclamation point.