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Edit File : intptr_t.h \| Size : 2.77 KB
#ifndef RBIMPL_ARITHMETIC_INTPTR_T_H /--C++--vi:se ft=cpp:/ #define RBIMPL_ARITHMETIC_INTPTR_T_H /** * @file * @author Ruby developers <ruby-core@ruby-lang.org> * @copyright This file is a part of the programming language Ruby. * Permission is hereby granted, to either redistribute and/or * modify this file, provided that the conditions mentioned in the * file COPYING are met. Consult the file for details. * @warning Symbols prefixed with either `RBIMPL` or `rbimpl` are * implementation details. Don't take them as canon. They could * rapidly appear then vanish. The name (path) of this header file * is also an implementation detail. Do not expect it to persist * at the place it is now. Developers are free to move it anywhere * anytime at will. * @note To ruby-core: remember that this header can be possibly * recursively included from extension libraries written in C++. * Do not expect for instance `__VA_ARGS__` is always available. * We assume C99 for ruby itself but we don't assume languages of * extension libraries. They could be written in C++98. * @brief Arithmetic conversion between C's `intptr_t` and Ruby's. / #include "ruby/internal/config.h" #ifdef HAVE_STDINT_H # include <stdint.h> #endif #include "ruby/internal/value.h" #include "ruby/internal/dllexport.h" #define rb_int_new rb_int2inum /< @alias{rb_int2inum} / #define rb_uint_new rb_uint2inum /*< @alias{rb_uint2inum} / RBIMPL_SYMBOL_EXPORT_BEGIN() /** * Converts a C's `intptr_t` into an instance of ::rb_cInteger. * * @param[in] i Arbitrary `intptr_t` value. * @return An instance of ::rb_cInteger. * @note This function always allocates Bignums, even if the given number * is small enough to fit into a Fixnum. / VALUE rb_int2big(intptr_t i); /* * Converts a C's `intptr_t` into an instance of ::rb_cInteger. * * @param[in] i Arbitrary `intptr_t` value. * @return An instance of ::rb_cInteger. / VALUE rb_int2inum(intptr_t i); /* * Converts a C's `intptr_t` into an instance of ::rb_cInteger. * * @param[in] i Arbitrary `intptr_t` value. * @return An instance of ::rb_cInteger. * @note This function always allocates Bignums, even if the given number * is small enough to fit into a Fixnum. / VALUE rb_uint2big(uintptr_t i); /* * Converts a C's `uintptr_t` into an instance of ::rb_cInteger. * * @param[in] i Arbitrary `uintptr_t` value. * @return An instance of ::rb_cInteger. / VALUE rb_uint2inum(uintptr_t i); RBIMPL_SYMBOL_EXPORT_END() #endif / RBIMPL_ARITHMETIC_INTPTR_T_H */ Back

Edit File : intptr_t.h | Size : 2.77 KB

#ifndef RBIMPL_ARITHMETIC_INTPTR_T_H                 /*-*-C++-*-vi:se ft=cpp:*/
#define RBIMPL_ARITHMETIC_INTPTR_T_H
/**
 * @file
 * @author     Ruby developers <ruby-core@ruby-lang.org>
 * @copyright  This  file  is   a  part  of  the   programming  language  Ruby.
 *             Permission  is hereby  granted,  to  either redistribute  and/or
 *             modify this file, provided that  the conditions mentioned in the
 *             file COPYING are met.  Consult the file for details.
 * @warning    Symbols   prefixed  with   either  `RBIMPL`   or  `rbimpl`   are
 *             implementation details.   Don't take  them as canon.  They could
 *             rapidly appear then vanish.  The name (path) of this header file
 *             is also an  implementation detail.  Do not expect  it to persist
 *             at the place it is now.  Developers are free to move it anywhere
 *             anytime at will.
 * @note       To  ruby-core:  remember  that   this  header  can  be  possibly
 *             recursively included  from extension  libraries written  in C++.
 *             Do not  expect for  instance `__VA_ARGS__` is  always available.
 *             We assume C99  for ruby itself but we don't  assume languages of
 *             extension libraries.  They could be written in C++98.
 * @brief      Arithmetic conversion between C's `intptr_t` and Ruby's.
 */
#include "ruby/internal/config.h"

#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif

#include "ruby/internal/value.h"
#include "ruby/internal/dllexport.h"

#define rb_int_new  rb_int2inum  /**< @alias{rb_int2inum} */
#define rb_uint_new rb_uint2inum /**< @alias{rb_uint2inum} */

RBIMPL_SYMBOL_EXPORT_BEGIN()

/**
 * Converts a C's `intptr_t` into an instance of ::rb_cInteger.
 *
 * @param[in]  i  Arbitrary `intptr_t` value.
 * @return     An instance of ::rb_cInteger.
 * @note       This function always allocates Bignums, even if the given number
 *             is small enough to fit into a Fixnum.
 */
VALUE rb_int2big(intptr_t i);

/**
 * Converts a C's `intptr_t` into an instance of ::rb_cInteger.
 *
 * @param[in]  i  Arbitrary `intptr_t` value.
 * @return     An instance of ::rb_cInteger.
 */
VALUE rb_int2inum(intptr_t i);

/**
 * Converts a C's `uintptr_t` into an instance of ::rb_cInteger.
 *
 * @param[in]  i  Arbitrary `uintptr_t` value.
 * @return     An instance of ::rb_cInteger.
 */
VALUE rb_uint2inum(uintptr_t i);
RBIMPL_SYMBOL_EXPORT_END()

#endif /* RBIMPL_ARITHMETIC_INTPTR_T_H */

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