Ruby: include/ruby/util.h Source File

Ruby 3.2.5p208 (2024-07-26 revision 31d0f1a2e7dbfb60731d1f05b868e1d578cda493)

util.h
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1#ifndef RUBY_UTIL_H /*-*-C++-*-vi:se ft=cpp:*/
2#define RUBY_UTIL_H 1
16#include "ruby/internal/config.h"
17
18#ifdef STDC_HEADERS
19# include <stddef.h> /* size_t */
20#endif
21
22#ifdef HAVE_SYS_TYPES_H
23# include <sys/types.h> /* ssize_t */
24#endif
25
26#include "ruby/internal/attr/noalias.h"
27#include "ruby/internal/attr/nodiscard.h"
28#include "ruby/internal/attr/nonnull.h"
29#include "ruby/internal/attr/restrict.h"
30#include "ruby/internal/attr/returns_nonnull.h"
31#include "ruby/internal/dllexport.h"
32#include "ruby/defines.h"
33
34 RBIMPL_SYMBOL_EXPORT_BEGIN()
35
36
37#define DECIMAL_SIZE_OF_BITS(n) (((n) * 3010 + 9998) / 9999)
38
44 RUBY_EXTERN const signed char ruby_digit36_to_number_table[];
45
50 RUBY_EXTERN const char ruby_hexdigits[];
51
71unsigned long ruby_scan_digits(const char *str, ssize_t len, int base, size_t *retlen, int *overflow);
72
74#define scan_oct(s,l,e) ((int)ruby_scan_oct((s),(l),(e)))
75
76 RBIMPL_ATTR_NOALIAS()
77 RBIMPL_ATTR_NONNULL(())
94unsigned long ruby_scan_oct(const char *str, size_t len, size_t *consumed);
95
97#define scan_hex(s,l,e) ((int)ruby_scan_hex((s),(l),(e)))
98
99 RBIMPL_ATTR_NONNULL(())
116unsigned long ruby_scan_hex(const char *str, size_t len, size_t *ret);
117
123#ifdef HAVE_GNU_QSORT_R
124# define ruby_qsort qsort_r
125#else
126 void ruby_qsort(void *, const size_t, const size_t,
127 int (*)(const void *, const void *, void *), void *);
128#endif
129
130 RBIMPL_ATTR_NONNULL((1))
141void ruby_setenv(const char *key, const char *val);
142
143 RBIMPL_ATTR_NONNULL(())
151void ruby_unsetenv(const char *key);
152
153 RBIMPL_ATTR_NODISCARD()
154 RBIMPL_ATTR_RESTRICT()
155 RBIMPL_ATTR_RETURNS_NONNULL()
156 RBIMPL_ATTR_NONNULL(())
165char *ruby_strdup(const char *str);
166
167#undef strdup
176#define strdup(s) ruby_strdup(s)
177
178 RBIMPL_ATTR_NODISCARD()
179 RBIMPL_ATTR_RESTRICT()
180 RBIMPL_ATTR_RETURNS_NONNULL()
188char *ruby_getcwd(void);
189
190 RBIMPL_ATTR_NONNULL((1))
208 double ruby_strtod(const char *str, char **endptr);
209
210#undef strtod
212#define strtod(s,e) ruby_strtod((s),(e))
213
214 RBIMPL_ATTR_NONNULL((2))
224void ruby_each_words(const char *str, void (*func)(const char *word, int len, void *argv), void *argv);
225
226 RBIMPL_SYMBOL_EXPORT_END()
227
228#endif /* RUBY_UTIL_H */
defines.h
dllexport.h
Tweaking visibility of C variables/functions.
RUBY_EXTERN
#define RUBY_EXTERN
Declaration of externally visible global variables.
Definition dllexport.h:47
RBIMPL_SYMBOL_EXPORT_END
#define RBIMPL_SYMBOL_EXPORT_END()
Counterpart of RBIMPL_SYMBOL_EXPORT_BEGIN.
Definition dllexport.h:106
RBIMPL_SYMBOL_EXPORT_BEGIN
#define RBIMPL_SYMBOL_EXPORT_BEGIN()
Shortcut macro equivalent to RUBY_SYMBOL_EXPORT_BEGIN extern "C" {.
Definition dllexport.h:97
ruby_setenv
void ruby_setenv(const char *key, const char *val)
Sets an environment variable.
Definition hash.c:5189
ruby_scan_hex
unsigned long ruby_scan_hex(const char *str, size_t len, size_t *ret)
Interprets the passed string a hexadecimal unsigned integer.
Definition util.c:56
ruby_digit36_to_number_table
const signed char ruby_digit36_to_number_table[]
Character to number mapping like ‘'a’->10,'b'->11etc.
Definition util.c:76
ruby_strdup
char * ruby_strdup(const char *str)
This is our own version of strdup(3) that uses ruby_xmalloc() instead of system malloc (benefits our ...
Definition util.c:538
ruby_unsetenv
void ruby_unsetenv(const char *key)
Deletes the passed environment variable, if any.
Definition hash.c:5371
ruby_each_words
void ruby_each_words(const char *str, void(*func)(const char *word, int len, void *argv), void *argv)
Scans the passed string, with calling the callback function every time it encounters a "word".
Definition util.c:596
ruby_strtod
double ruby_strtod(const char *str, char **endptr)
Our own locale-insensitive version of strtod(3).
ruby_qsort
void ruby_qsort(void *, const size_t, const size_t, int(*)(const void *, const void *, void *), void *)
Reentrant implementation of quick sort.
ruby_getcwd
char * ruby_getcwd(void)
This is our own version of getcwd(3) that uses ruby_xmalloc() instead of system malloc (benefits our ...
Definition util.c:550
ruby_hexdigits
const char ruby_hexdigits[]
Characters that Ruby accepts as hexadecimal digits.
Definition util.c:34
ruby_scan_oct
unsigned long ruby_scan_oct(const char *str, size_t len, size_t *consumed)
Interprets the passed string as an octal unsigned integer.
Definition util.c:38
ruby_scan_digits
unsigned long ruby_scan_digits(const char *str, ssize_t len, int base, size_t *retlen, int *overflow)
Scans the passed string, assuming the string is a textual representation of an integer.
Definition util.c:98
noalias.h
Defines RBIMPL_ATTR_NOALIAS.
RBIMPL_ATTR_NOALIAS
#define RBIMPL_ATTR_NOALIAS()
Wraps (or simulates) __declspec((noalias))
Definition noalias.h:66
nodiscard.h
Defines RBIMPL_ATTR_NODISCARD.
RBIMPL_ATTR_NODISCARD
#define RBIMPL_ATTR_NODISCARD()
Wraps (or simulates) [[nodiscard]].
Definition nodiscard.h:42
nonnull.h
Defines RBIMPL_ATTR_NONNULL.
RBIMPL_ATTR_NONNULL
#define RBIMPL_ATTR_NONNULL(list)
Wraps (or simulates) __attribute__((nonnull))
Definition nonnull.h:30
restrict.h
Defines RBIMPL_ATTR_RESTRICT.
RBIMPL_ATTR_RESTRICT
#define RBIMPL_ATTR_RESTRICT()
Wraps (or simulates) __declspec(restrict)
Definition restrict.h:41
returns_nonnull.h
Defines RBIMPL_ATTR_RETURNS_NONNULL.
RBIMPL_ATTR_RETURNS_NONNULL
#define RBIMPL_ATTR_RETURNS_NONNULL()
Wraps (or simulates) __attribute__((returns_nonnull))
Definition returns_nonnull.h:34