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//----------------------------------------------------------------------------------------------------
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//$Header: /home/dashley/cvsrep/e3ft_gpl01/e3ft_gpl01/dtaipubs/cron/2010/blackjack_201010/source/bjcceval/charfunc.h,v 1.7 2012/03/30 00:58:36 dashley Exp $
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//----------------------------------------------------------------------------------------------------
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//Copyright (C) 2012, David T. Ashley.
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//
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//This file is part of BJCCEVAL, a program that evaluates by simulation
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//the best basic strategy, card-counting, and other playing strategies
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//for several variants of the game of Blackjack.
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//
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//BJCCEVAL is free software: you can redistribute it and/or modify
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//it under the terms of the GNU General Public License as published by
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//the Free Software Foundation, either version 3 of the License, or
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//(at your option) any later version.
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//
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//BJCCEVAL is distributed in the hope that it will be useful,
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//but WITHOUT ANY WARRANTY; without even the implied warranty of
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//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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//GNU General Public License for more details.
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//
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//You should have received a copy of the GNU General Public License
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//along with this program. If not, see <http://www.gnu.org/licenses/>.
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//(A copy of the GNU General Public License, Version 3 is provided in
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//the file "COPYING" distributed with BJCCEVAL.)
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//
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//David T. Ashley can be contacted at DASHLEY@GMAIL.COM and/or at
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//P.O. Box 918, Marshall MI 49068.
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//----------------------------------------------------------------------------------------------------
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#ifndef CHARFUNC_H_INCLUDED
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#define CHARFUNC_H_INCLUDED
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#ifdef MODULE_CHARFUNC
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#define DECMOD_CHARFUNC
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#else
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#define DECMOD_CHARFUNC extern
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#endif
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#include <stdlib.h>
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//Character classification functions --------------------------
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//
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//!=0 if digit, 0 otherwise.
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DECMOD_CHARFUNC int CHARFUNC_is_digit(char c);
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//
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//!=0 if lower-case letter, 0 otherwise.
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DECMOD_CHARFUNC int CHARFUNC_is_letter_lc(char c);
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//
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//!=0 if upper-case letter, 0 otherwise.
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DECMOD_CHARFUNC int CHARFUNC_is_letter_uc(char c);
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//
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//!=0 if whitespace, 0 otherwise. Whitespace is defined as space,
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//tab, or newline.
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DECMOD_CHARFUNC int CHARFUNC_is_whitespace(char c);
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//Hexadecimal arithmetic/presentation functions --------------------------
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//
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//Returns the value of a digit (0-9), or -1 if the
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//passed character is not a digit.
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DECMOD_CHARFUNC int CHARFUNC_digit_to_val(char digit);
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//Returns a lower-case character corresponding to the
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//lowest nibble of the argument.
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DECMOD_CHARFUNC char CHARFUNC_nibble_to_lc_hex_digit(int nibble);
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//Converts a passed integer to 8 hex digits, lower case letters,
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//in reverse order (LSB first), with no terminator. s may not
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//be null, and caller must provide space for s[0] through s[7].
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//s[8] is not necessary (no terminator is appended.
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DECMOD_CHARFUNC void CHARFUNC_int_to_lc_hex_rev(int arg, char *s);
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//Character case conversion functions --------------------------
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//
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//If the character is a lower-case letter, converts it to an upper-case
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//letter. All other characters are passed through unchanged.
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DECMOD_CHARFUNC char CHARFUNC_to_upper(char c);
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//If the character is an upper-case letter, converts it to a lower-case
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//letter. All other characters are passed through unchanged.
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DECMOD_CHARFUNC char CHARFUNC_to_lower(char c);
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//Returns lower-case letter corresponding to integer [0..25]. If out of
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//range returns '?'.
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DECMOD_CHARFUNC char CHARFUNC_int_to_lower(int arg);
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DECMOD_CHARFUNC const char *CHARFUNC_Vcinfo_C(void);
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DECMOD_CHARFUNC const char *CHARFUNC_Vcinfo_H(void);
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#define CHARFUNC_VCINFO_H "$Revision: 1.7 $"
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#endif
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//----------------------------------------------------------------------------------------------------
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//$Log: charfunc.h,v $
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//Revision 1.7 2012/03/30 00:58:36 dashley
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//Edits.
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//
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//Revision 1.6 2012/03/30 00:20:14 dashley
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//Edits.
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//
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//Revision 1.5 2012/03/29 23:44:00 dashley
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//Edits.
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//
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//Revision 1.4 2012/03/29 00:42:06 dashley
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//Edits.
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//
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//Revision 1.3 2012/03/28 23:58:42 dashley
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//Edits.
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//
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//Revision 1.2 2012/03/15 23:38:08 dashley
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//License text enhanced.
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//
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//Revision 1.1 2012/03/12 02:54:25 dashley
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//Initial checkin.
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//----------------------------------------------------------------------------------------------------
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//End of $RCSfile: charfunc.h,v $
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//----------------------------------------------------------------------------------------------------
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