Function Names
dim, redimDescription
dim defines one or more arrays with specified dimensions and initial values. If the variable is already existing as an array or a structure,
then all member variables will be eliminated and initialized accordingly.
redim will preserve the the existing array contents as long the size is increased. In this case, only the added members will be initialized.
The arrays can also be downsized where the excessive members will be eliminated.
Impact on base variables: The base variable remains unaffected. These functions affect the members only.
Note: B4P supports spontaneous array creation and extension by simply write-accessing a member which does not yet exist. However, only this
designated member will be assigned where the additional members to be initialized contain void values. Example: a[10] = 1; Here, a[0]..a[9] are
initialized with void values.
Call as: procedure
Restrictions
Indirect parameter passing is disabled
Parameter count
3, 6, 9, etc.
Parameters
| No. | Type | Description | ||||
|---|---|---|---|---|---|---|
| 1, 4, 7, ... code |
variable :string |
Variable name The array will be built on the specified variable. Member variables of existing arrays and structures are allowed so you can build more complex data structures. | ||||
| 2, 5, 8, ... input |
numeral set of numerals |
Dimension Following types are supported:
Default value: text | ||||
| 3, 6, 9, ... input |
valid types | Initial value The initial value will be applied for every variable member. |
Examples
a[] = 123; // Will be preserved
dim( a[], 5, Hi, b[], {}, 1, a[2], {2,2}, 0 );
redim( a[], 8, Ho );
see( a[] ); // Nested arrays
see( b[] ); // Void
dim( c[], { 2, 2 }, 1 ); // 2x2 array
redim( c[], { 3, 3}, 3 ); // Extend to 3x3 array
see( c[] );Output
a[] 123 "123" (numeral,full access)
Array [ 0] Hi (softquoted string,full access)
Array [ 1] Hi (softquoted string,full access)
Array [ 2] Hi (softquoted string,full access)
Array [ 0] 0 "0" (numeral,full access)
Array [ 0] 0 "0" (numeral,full access)
Array [ 1] 0 "0" (numeral,full access)
Array [ 1] 0 "0" (numeral,full access)
Array [ 0] 0 "0" (numeral,full access)
Array [ 1] 0 "0" (numeral,full access)
Array [ 3] Hi (softquoted string,full access)
Array [ 4] Hi (softquoted string,full access)
Array [ 5] Ho (softquoted string,full access)
Array [ 6] Ho (softquoted string,full access)
Array [ 7] Ho (softquoted string,full access)
b[] [Void] (void,full access)
c[] [Void] (void,full access)
Array [ 0] 1 "1" (numeral,full access)
Array [ 0] 1 "1" (numeral,full access)
Array [ 1] 1 "1" (numeral,full access)
Array [ 2] 3 "3" (numeral,full access)
Array [ 1] 1 "1" (numeral,full access)
Array [ 0] 1 "1" (numeral,full access)
Array [ 1] 1 "1" (numeral,full access)
Array [ 2] 3 "3" (numeral,full access)
Array [ 2] 3 "3" (numeral,full access)
Array [ 0] 3 "3" (numeral,full access)
Array [ 1] 3 "3" (numeral,full access)
Array [ 2] 3 "3" (numeral,full access)
See also
dim protect
redim protect
array
insert memebers