/**********************************************************************

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util.h -

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$Author$

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created at: Thu Mar 9 11:55:53 JST 1995

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Copyright (C) 1993-2007 Yukihiro Matsumoto

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**********************************************************************/

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#ifndef RUBY_UTIL_H

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#define RUBY_UTIL_H 1

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#if defined(__cplusplus)

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extern "C" {

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#if 0

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} /* satisfy cc-mode */

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#endif

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#endif

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#include "ruby/defines.h"

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#ifdef RUBY_EXTCONF_H

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#include RUBY_EXTCONF_H

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#endif

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#ifndef _

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#ifdef __cplusplus

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# ifndef HAVE_PROTOTYPES

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# define HAVE_PROTOTYPES 1

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# endif

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# ifndef HAVE_STDARG_PROTOTYPES

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# define HAVE_STDARG_PROTOTYPES 1

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# endif

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#endif

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#ifdef HAVE_PROTOTYPES

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# define _(args) args

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#else

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# define _(args) ()

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#endif

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#ifdef HAVE_STDARG_PROTOTYPES

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# define __(args) args

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#else

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# define __(args) ()

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#endif

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#endif

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RUBY_SYMBOL_EXPORT_BEGIN

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#define DECIMAL_SIZE_OF_BITS(n) (((n) * 3010 + 9998) / 9999)

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/* an approximation of ceil(n * log10(2)), up to 65536 at least */

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#define scan_oct(s,l,e) ((int)ruby_scan_oct((s),(l),(e)))

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unsigned long ruby_scan_oct(const char *, size_t, size_t *);

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#define scan_hex(s,l,e) ((int)ruby_scan_hex((s),(l),(e)))

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unsigned long ruby_scan_hex(const char *, size_t, size_t *);

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#ifdef HAVE_GNU_QSORT_R

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# define ruby_qsort qsort_r

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#else

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void ruby_qsort(void *, const size_t, const size_t,

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int (*)(const void *, const void *, void *), void *);

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#endif

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void ruby_setenv(const char *, const char *);

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void ruby_unsetenv(const char *);

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char *ruby_strdup(const char *);

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#undef strdup

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#define strdup(s) ruby_strdup(s)

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char *ruby_getcwd(void);

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double ruby_strtod(const char *, char **);

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#undef strtod

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#define strtod(s,e) ruby_strtod((s),(e))

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void ruby_each_words(const char *, void (*)(const char*, int, void*), void *);

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RUBY_SYMBOL_EXPORT_END

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#if defined(__cplusplus)

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#if 0

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{ /* satisfy cc-mode */

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#endif

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} /* extern "C" { */

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#endif

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#endif /* RUBY_UTIL_H */

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