DECIMAL |
Decimal is used to declare Decimal type variables, that is numbers in C-Isam BCD (binary coded decimal) format.
[ Local | Global | Extern ] Decimal list_var_dim
|
Element |
Description |
Restrictions |
|
list_var_dim |
List ofvar_dim separated by the character ','. |
None. |
|
var_dim |
Name of a variable expressed
in one of the following forms: |
None. |
|
nom_var |
nom_de_variable. |
None. |
|
list_dim |
List ofexp_dim separated by the character ','. |
number limited to 4. |
|
exp_dim |
Integer expression representing the number of elements of the variable (from 0 to exp_dim-1) or 2 integer expressions separated by the 2 characters '..' representing the range of possible indices for the variable |
The number of elements must belong to [1,65535]. If a range is given the starting index must belong to [-32768,32767]. |
# Declaration of local variable
Local
Decimal LOCDCB
# Declaration of an external 8 element table (numbered 0
to 7)
Extern
Decimal TABDCB( 8 )
# Declaration of an 8 element table (numbered I to I+7)
I
= 3
Decimal TABDCB( I ..
I+7 )
# Declaration of a 4-dimensional matrix
Decimal HYPER( X, Y,
Z, T)
Decimal is used to declare decimal type variables to an accuracy of 32 significant digits maximum, scaling them if necessary.
If Local is used, the variables will be local to the routine or sub-programme, and deleted when the sub-programme or routine is completed.
If
Extern is used, the variable is not created, but its existence and type are
checked.
If Extern is not used, a declaration of a variable already existing in class
[V] or [L] will cause this variable to be deleted, followed by its recreation
with the dimensions and type given. After a declaration, the variable is always
initialised (that is, set to 0 for a variable of type Decimal, for all indices of the variable).
Values for Decimal type variables are between –1E80 and +1E80; giving an accuracy of 32 significant digits maximum.
|
Error |
Description |
|
ERDIM (55) |
Too many dimensions are given (>4). |
|
ERVARI ( 6) |
Non-existent variable (Extern). |
|
ERMODE (10) |
- The dimensions given are not
numerical. |
|
ERCLAS ( 7) |
Non-existent or prohibited class (for example: declaration of a variable in a mask). |
|
ERINDI ( 8) |
One of the dimensions is null. |
|
ERDOM (50) |
The dimensions are not between -32768 and +32767. |
SHORTINT - DATE - INTEGER - LIBELLE - CHAR - GLOBAL - LOCAL - EXTERN
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