diff options
Diffstat (limited to 'include/ruby/missing.h')
| -rw-r--r-- | include/ruby/missing.h | 191 |
1 files changed, 110 insertions, 81 deletions
diff --git a/include/ruby/missing.h b/include/ruby/missing.h index bded5521d1..f83f1b695c 100644 --- a/include/ruby/missing.h +++ b/include/ruby/missing.h @@ -1,43 +1,64 @@ -/************************************************ - - missing.h - prototype for *.c in ./missing, and - for missing timeval struct - - $Author$ - created at: Sat May 11 23:46:03 JST 2002 - -************************************************/ - -#ifndef RUBY_MISSING_H +#ifndef RUBY_MISSING_H /*-*-C++-*-vi:se ft=cpp:*/ #define RUBY_MISSING_H 1 +/** + * @file + * @author $Author$ + * @date Sat May 11 23:46:03 JST 2002 + * @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. + * @brief Prototype for *.c in ./missing, and for missing timeval struct. + */ +#include "ruby/internal/config.h" + +#ifdef STDC_HEADERS +# include <stddef.h> +#endif #if defined(__cplusplus) -extern "C" { -#if 0 -} /* satisfy cc-mode */ +# include <cmath> +#else +# include <math.h> /* for INFINITY and NAN */ #endif + +#ifdef RUBY_ALTERNATIVE_MALLOC_HEADER +# include RUBY_ALTERNATIVE_MALLOC_HEADER #endif -#include "ruby/config.h" -#include <stddef.h> -#ifdef RUBY_EXTCONF_H -#include RUBY_EXTCONF_H +#if defined(HAVE_TIME_H) +# include <time.h> #endif #if defined(HAVE_SYS_TIME_H) -# include <sys/time.h> -#elif !defined(_WIN32) -# define time_t long +# include <sys/time.h> +#endif + +#ifdef HAVE_IEEEFP_H +# include <ieeefp.h> +#endif + +#include "ruby/internal/dllexport.h" + +#ifndef M_PI +# define M_PI 3.14159265358979323846 +#endif +#ifndef M_PI_2 +# define M_PI_2 (M_PI/2) +#endif + +#if !defined(HAVE_STRUCT_TIMEVAL) struct timeval { time_t tv_sec; /* seconds */ long tv_usec; /* microseconds */ }; -#endif -#if defined(HAVE_SYS_TYPES_H) -# include <sys/types.h> -#endif +#endif /* HAVE_STRUCT_TIMEVAL */ #if !defined(HAVE_STRUCT_TIMESPEC) +/* :BEWARE: @shyouhei warns that IT IS A WRONG IDEA to define our own version + * of struct timespec here. `clock_gettime` is a system call, and your kernel + * could expect something other than just `long` (results stack smashing if + * that happens). See also https://ewontfix.com/19/ */ struct timespec { time_t tv_sec; /* seconds */ long tv_nsec; /* nanoseconds */ @@ -51,21 +72,7 @@ struct timezone { }; #endif -#if defined(HAVE___SYSCALL) && defined(__APPLE__) -/* Mac OS X has __syscall but doen't defined in headers */ -off_t __syscall(quad_t number, ...); -#endif - -#ifdef RUBY_EXPORT -#undef RUBY_EXTERN -#endif -#ifndef RUBY_EXTERN -#define RUBY_EXTERN extern -#endif - -#if defined __GNUC__ && __GNUC__ >= 4 -#pragma GCC visibility push(default) -#endif +RBIMPL_SYMBOL_EXPORT_BEGIN() #ifndef HAVE_ACOSH RUBY_EXTERN double acosh(double); @@ -124,39 +131,68 @@ RUBY_EXTERN double lgamma_r(double, int *); RUBY_EXTERN double cbrt(double); #endif -#ifdef INFINITY -# define HAVE_INFINITY -#else +#if !defined(INFINITY) || !defined(NAN) +union bytesequence4_or_float { + unsigned char bytesequence[4]; + float float_value; +}; +#endif + +#ifndef INFINITY /** @internal */ -RUBY_EXTERN const unsigned char rb_infinity[]; -# define INFINITY (*(float *)rb_infinity) +RUBY_EXTERN const union bytesequence4_or_float rb_infinity; +# define INFINITY (rb_infinity.float_value) +# define USE_RB_INFINITY 1 #endif -#ifdef NAN -# define HAVE_NAN -#else +#ifndef NAN /** @internal */ -RUBY_EXTERN const unsigned char rb_nan[]; -# define NAN (*(float *)rb_nan) -#endif - -#ifndef isinf -# ifndef HAVE_ISINF -# if defined(HAVE_FINITE) && defined(HAVE_ISNAN) -# ifdef HAVE_IEEEFP_H -# include <ieeefp.h> -# endif -# define isinf(x) (!finite(x) && !isnan(x)) -# else +RUBY_EXTERN const union bytesequence4_or_float rb_nan; +# define NAN (rb_nan.float_value) +# define USE_RB_NAN 1 +#endif + +#ifndef HUGE_VAL +# define HUGE_VAL ((double)INFINITY) +#endif + +#if defined(isinf) +# /* Take that. */ +#elif defined(HAVE_ISINF) +# /* Take that. */ +#elif defined(HAVE_FINITE) && defined(HAVE_ISNAN) +# define isinf(x) (!finite(x) && !isnan(x)) +#elif defined(__cplusplus) && __cplusplus >= 201103L +# // <cmath> must include constexpr bool isinf(double); +#else RUBY_EXTERN int isinf(double); -# endif -# endif #endif -#ifndef isnan -# ifndef HAVE_ISNAN +#if defined(isnan) +# /* Take that. */ +#elif defined(HAVE_ISNAN) +# /* Take that. */ +#elif defined(__cplusplus) && __cplusplus >= 201103L +# // <cmath> must include constexpr bool isnan(double); +#else RUBY_EXTERN int isnan(double); -# endif +#endif + +#if defined(isfinite) +# /* Take that. */ +#elif defined(HAVE_ISFINITE) +# /* Take that. */ +#else +# define HAVE_ISFINITE 1 +# define isfinite(x) finite(x) +#endif + +#ifndef HAVE_NAN +RUBY_EXTERN double nan(const char *); +#endif + +#ifndef HAVE_NEXTAFTER +RUBY_EXTERN double nextafter(double x, double y); #endif /* @@ -188,12 +224,6 @@ RUBY_EXTERN char *strerror(int); RUBY_EXTERN char *strstr(const char *, const char *); #endif -/* -#ifndef HAVE_STRTOL -RUBY_EXTERN long strtol(const char *, char **, int); -#endif -*/ - #ifndef HAVE_STRLCPY RUBY_EXTERN size_t strlcpy(char *, const char*, size_t); #endif @@ -211,8 +241,8 @@ RUBY_EXTERN int ffs(int); #endif #ifdef BROKEN_CLOSE -#include <sys/types.h> -#include <sys/socket.h> +# include <sys/types.h> +# include <sys/socket.h> RUBY_EXTERN int ruby_getpeername(int, struct sockaddr *, socklen_t *); RUBY_EXTERN int ruby_getsockname(int, struct sockaddr *, socklen_t *); RUBY_EXTERN int ruby_shutdown(int, int); @@ -223,15 +253,14 @@ RUBY_EXTERN int ruby_close(int); RUBY_EXTERN void setproctitle(const char *fmt, ...); #endif -#if defined __GNUC__ && __GNUC__ >= 4 -#pragma GCC visibility pop +#ifdef HAVE_EXPLICIT_BZERO +# /* Take that. */ +#elif defined(SecureZeroMemory) +# define explicit_bzero(b, len) SecureZeroMemory(b, len) +#else +RUBY_EXTERN void explicit_bzero(void *b, size_t len); #endif -#if defined(__cplusplus) -#if 0 -{ /* satisfy cc-mode */ -#endif -} /* extern "C" { */ -#endif +RBIMPL_SYMBOL_EXPORT_END() #endif /* RUBY_MISSING_H */ |