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52c00e59ba
CODE11/CODE39/EXCODE39/CODE93/PZN/CHANNEL/VIN/DBAR/UPCEAN: fuller error messages DATAMATRIX: look_ahead_test debug counts DBAR: consolidate option_2 cols_per_row CMakeLists.txt: restore -fno-var-tracking-assignments for gcc no DEBUG overall: suppress various warnings on various configs testcommon.c: clean-up
49 lines
2.0 KiB
C
49 lines
2.0 KiB
C
/* gs1.h - Verifies GS1 data */
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/*
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libzint - the open source barcode library
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Copyright (C) 2009 - 2020 Robin Stuart <rstuart114@gmail.com>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the project nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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/* vim: set ts=4 sw=4 et : */
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#ifndef __GS1_H
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#define __GS1_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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INTERNAL int gs1_verify(struct zint_symbol *symbol, const unsigned char source[], const int src_len,
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unsigned char reduced[]);
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INTERNAL char gs1_check_digit(const unsigned char source[], const int src_len);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GS1_H */
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