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Diffstat (limited to 'include/ruby/missing.h')
| -rw-r--r-- | include/ruby/missing.h | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/include/ruby/missing.h b/include/ruby/missing.h new file mode 100644 index 0000000000..f83f1b695c --- /dev/null +++ b/include/ruby/missing.h @@ -0,0 +1,266 @@ +#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) +# include <cmath> +#else +# include <math.h> /* for INFINITY and NAN */ +#endif + +#ifdef RUBY_ALTERNATIVE_MALLOC_HEADER +# include RUBY_ALTERNATIVE_MALLOC_HEADER +#endif + +#if defined(HAVE_TIME_H) +# include <time.h> +#endif + +#if defined(HAVE_SYS_TIME_H) +# 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 /* 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 */ +}; +#endif + +#if !defined(HAVE_STRUCT_TIMEZONE) +struct timezone { + int tz_minuteswest; + int tz_dsttime; +}; +#endif + +RBIMPL_SYMBOL_EXPORT_BEGIN() + +#ifndef HAVE_ACOSH +RUBY_EXTERN double acosh(double); +RUBY_EXTERN double asinh(double); +RUBY_EXTERN double atanh(double); +#endif + +#ifndef HAVE_CRYPT +RUBY_EXTERN char *crypt(const char *, const char *); +#endif + +#ifndef HAVE_DUP2 +RUBY_EXTERN int dup2(int, int); +#endif + +#ifndef HAVE_EACCESS +RUBY_EXTERN int eaccess(const char*, int); +#endif + +#ifndef HAVE_ROUND +RUBY_EXTERN double round(double); /* numeric.c */ +#endif + +#ifndef HAVE_FINITE +RUBY_EXTERN int finite(double); +#endif + +#ifndef HAVE_FLOCK +RUBY_EXTERN int flock(int, int); +#endif + +/* +#ifndef HAVE_FREXP +RUBY_EXTERN double frexp(double, int *); +#endif +*/ + +#ifndef HAVE_HYPOT +RUBY_EXTERN double hypot(double, double); +#endif + +#ifndef HAVE_ERF +RUBY_EXTERN double erf(double); +RUBY_EXTERN double erfc(double); +#endif + +#ifndef HAVE_TGAMMA +RUBY_EXTERN double tgamma(double); +#endif + +#ifndef HAVE_LGAMMA_R +RUBY_EXTERN double lgamma_r(double, int *); +#endif + +#ifndef HAVE_CBRT +RUBY_EXTERN double cbrt(double); +#endif + +#if !defined(INFINITY) || !defined(NAN) +union bytesequence4_or_float { + unsigned char bytesequence[4]; + float float_value; +}; +#endif + +#ifndef INFINITY +/** @internal */ +RUBY_EXTERN const union bytesequence4_or_float rb_infinity; +# define INFINITY (rb_infinity.float_value) +# define USE_RB_INFINITY 1 +#endif + +#ifndef NAN +/** @internal */ +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 + +#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 + +#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 + +/* +#ifndef HAVE_MEMCMP +RUBY_EXTERN int memcmp(const void *, const void *, size_t); +#endif +*/ + +#ifndef HAVE_MEMMOVE +RUBY_EXTERN void *memmove(void *, const void *, size_t); +#endif + +/* +#ifndef HAVE_MODF +RUBY_EXTERN double modf(double, double *); +#endif +*/ + +#ifndef HAVE_STRCHR +RUBY_EXTERN char *strchr(const char *, int); +RUBY_EXTERN char *strrchr(const char *, int); +#endif + +#ifndef HAVE_STRERROR +RUBY_EXTERN char *strerror(int); +#endif + +#ifndef HAVE_STRSTR +RUBY_EXTERN char *strstr(const char *, const char *); +#endif + +#ifndef HAVE_STRLCPY +RUBY_EXTERN size_t strlcpy(char *, const char*, size_t); +#endif + +#ifndef HAVE_STRLCAT +RUBY_EXTERN size_t strlcat(char *, const char*, size_t); +#endif + +#ifndef HAVE_SIGNBIT +RUBY_EXTERN int signbit(double x); +#endif + +#ifndef HAVE_FFS +RUBY_EXTERN int ffs(int); +#endif + +#ifdef BROKEN_CLOSE +# 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); +RUBY_EXTERN int ruby_close(int); +#endif + +#ifndef HAVE_SETPROCTITLE +RUBY_EXTERN void setproctitle(const char *fmt, ...); +#endif + +#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 + +RBIMPL_SYMBOL_EXPORT_END() + +#endif /* RUBY_MISSING_H */ |