Sinclair QL - Page 145

DIM
arrays
DIMN
Defines an array to SuperBASIC. String, integer and floating point arrays can be defined.
String
arrays handle fixed length strings and the final index is taken to be the stnng length.
Array Indices
run from 0 up to the maximum index specified in the DIM statement; thus
DIM
will generate an array with one more element in each dimension than is actually
specified.
When
an array is specified it IS initialised to zero for a numeric array and zero length
strings
for a stnng array.
syntax: index: ~ numenc_expresslon
array: ~ indentifier(index * [, Indexl *)
DIM array *[. array] *
example: I. DIM string array$(10,10,50)
ii. DIM matrix(100,100)
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arrays DIMN IS a function which will return the maximum size of a specified dimension of a
specified
array. If a dimension is not specified then the first dimension is assumed. If
the speCified dimension does not exist or the identifier is not an array then zero is returned.
syntax: array: = identifier
index:
~ numeric_expression [1 for dimension 1, etc.]
DIMN(array [, dimension] )
example: consider the array defined
by: DIM a (2 ,3 ,4)
i. PRINT DIMN(A,1) [will print 2]
ii. PRINT DIMN(A,2) [Will print 3]
iii. PRINT DIMN(A,3) [will print 4]
IV PRINTDIMN(A) [will print 2]
v. PRINT DIMN(A,4) [will print 0]
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