/usr/include/libguile/chars.h is in guile-1.8-dev 1.8.8+1-8ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#ifndef SCM_CHARS_H
#define SCM_CHARS_H
/* Copyright (C) 1995,1996,2000,2001,2004, 2006 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libguile/__scm.h"
/* Immediate Characters
*/
#define SCM_CHARP(x) (SCM_ITAG8(x) == scm_tc8_char)
#define SCM_CHAR(x) ((unsigned int)SCM_ITAG8_DATA(x))
#define SCM_MAKE_CHAR(x) SCM_MAKE_ITAG8((scm_t_bits) (unsigned char) (x), scm_tc8_char)
SCM_API char *const scm_charnames[];
SCM_API int scm_n_charnames;
SCM_API const char scm_charnums[];
SCM_API SCM scm_char_p (SCM x);
SCM_API SCM scm_char_eq_p (SCM x, SCM y);
SCM_API SCM scm_char_less_p (SCM x, SCM y);
SCM_API SCM scm_char_leq_p (SCM x, SCM y);
SCM_API SCM scm_char_gr_p (SCM x, SCM y);
SCM_API SCM scm_char_geq_p (SCM x, SCM y);
SCM_API SCM scm_char_ci_eq_p (SCM x, SCM y);
SCM_API SCM scm_char_ci_less_p (SCM x, SCM y);
SCM_API SCM scm_char_ci_leq_p (SCM x, SCM y);
SCM_API SCM scm_char_ci_gr_p (SCM x, SCM y);
SCM_API SCM scm_char_ci_geq_p (SCM x, SCM y);
SCM_API SCM scm_char_alphabetic_p (SCM chr);
SCM_API SCM scm_char_numeric_p (SCM chr);
SCM_API SCM scm_char_whitespace_p (SCM chr);
SCM_API SCM scm_char_upper_case_p (SCM chr);
SCM_API SCM scm_char_lower_case_p (SCM chr);
SCM_API SCM scm_char_is_both_p (SCM chr);
SCM_API SCM scm_char_to_integer (SCM chr);
SCM_API SCM scm_integer_to_char (SCM n);
SCM_API SCM scm_char_upcase (SCM chr);
SCM_API SCM scm_char_downcase (SCM chr);
SCM_API int scm_c_upcase (unsigned int c);
SCM_API int scm_c_downcase (unsigned int c);
SCM_API void scm_init_chars (void);
#endif /* SCM_CHARS_H */
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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