32 lines
1.1 KiB
Forth
32 lines
1.1 KiB
Forth
\ Copyright 2023 Bradley D. Nelson
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\
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\ Licensed under the Apache License, Version 2.0 (the "License");
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\ you may not use this file except in compliance with the License.
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\ You may obtain a copy of the License at
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\
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\ http://www.apache.org/licenses/LICENSE-2.0
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\
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\ Unless required by applicable law or agreed to in writing, software
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\ distributed under the License is distributed on an "AS IS" BASIS,
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\ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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\ See the License for the specific language governing permissions and
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\ limitations under the License.
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needs ../oofda.fs
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class Array
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value data
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value length
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value capacity
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: .construct ( n -- ) to capacity
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here to data capacity cells allot
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0 to length ;
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: .get ( n -- n ) cells data + @ ;
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: .set ( n n -- ) cells data + ! ;
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: .length ( -- n ) length ;
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: .capacity ( -- n ) capacity ;
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: .append ( n -- ) this .length this .capacity >= throw
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this .length this .set 1 +to length ;
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: .length ( -- n ) length ;
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end-class
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