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5e9b7bacc3
* include/ruby/util.h (DECIMAL_SIZE_OF_BITS): a preprocessor constant macro to approximate decimal representation size of n-bits integer. * iseq.c (register_label): use DECIMAL_SIZE_OF_BITS for better approximation. * ext/bigdecimal/bigdecimal.c (BigMath_s_log): ditto. * common.mk (iseq.o), ext/bigdecimal/depend (bigdecimal.o): add dependency to ruby/util.h for DECIMAL_SIZE_OF_BITS. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44562 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
98 lines
2.1 KiB
C
98 lines
2.1 KiB
C
/**********************************************************************
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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)), upto 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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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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void ruby_setenv(const char *, const char *);
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void ruby_unsetenv(const char *);
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#undef setenv
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#undef unsetenv
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#define setenv(name,val) ruby_setenv((name),(val))
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#define unsetenv(name,val) ruby_unsetenv(name)
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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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#define my_getcwd() ruby_getcwd()
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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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#if defined _MSC_VER && _MSC_VER >= 1300
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#pragma warning(push)
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#pragma warning(disable:4723)
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#endif
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#if defined _MSC_VER && _MSC_VER >= 1300
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#pragma warning(pop)
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#endif
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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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