/*
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* Copyright 2012 ZXing authors
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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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*/
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@class ZXModulusPoly;
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/**
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* A field based on powers of a generator integer, modulo some modulus.
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*/
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@interface ZXModulusGF : NSObject
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@property (nonatomic, strong, readonly) ZXModulusPoly *one;
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@property (nonatomic, strong, readonly) ZXModulusPoly *zero;
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+ (ZXModulusGF *)PDF417_GF;
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- (id)initWithModulus:(int)modulus generator:(int)generator;
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- (ZXModulusPoly *)buildMonomial:(int)degree coefficient:(int)coefficient;
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- (int)add:(int)a b:(int)b;
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- (int)subtract:(int)a b:(int)b;
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- (int)exp:(int)a;
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- (int)log:(int)a;
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- (int)inverse:(int)a;
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- (int)multiply:(int)a b:(int)b;
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- (int)size;
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@end
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