Mercurial > projects > ldc
diff dmd/root/port.c @ 1195:e961851fb8be
Merged DMD 1.042.
author | Tomas Lindquist Olsen <tomas.l.olsen gmail.com> |
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date | Fri, 03 Apr 2009 17:59:34 +0200 |
parents | |
children | 8026319762be |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dmd/root/port.c Fri Apr 03 17:59:34 2009 +0200 @@ -0,0 +1,754 @@ + +// Copyright (c) 1999-2009 by Digital Mars +// All Rights Reserved +// written by Walter Bright +// http://www.digitalmars.com + +#include "port.h" + +#if __DMC__ +#include <math.h> +#include <float.h> +#include <fp.h> +#include <time.h> +#include <stdlib.h> +#include <string.h> + +double Port::nan = NAN; +double Port::infinity = INFINITY; +double Port::dbl_max = DBL_MAX; +double Port::dbl_min = DBL_MIN; + +int Port::isNan(double r) +{ + return ::isnan(r); +} + +int Port::isNan(long double r) +{ + return ::isnan(r); +} + +int Port::isSignallingNan(double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 51 of 0..63 for 64 bit doubles. + */ + return isNan(r) && !((((unsigned char*)&r)[6]) & 8); +} + +int Port::isSignallingNan(long double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 62 of 0..79 for 80 bit reals. + */ + return isNan(r) && !((((unsigned char*)&r)[7]) & 0x40); +} + +int Port::isFinite(double r) +{ + return ::isfinite(r); +} + +int Port::isInfinity(double r) +{ + return (::fpclassify(r) == FP_INFINITE); +} + +int Port::Signbit(double r) +{ + return ::signbit(r); +} + +double Port::floor(double d) +{ + return ::floor(d); +} + +double Port::pow(double x, double y) +{ + return ::pow(x, y); +} + +unsigned long long Port::strtoull(const char *p, char **pend, int base) +{ + return ::strtoull(p, pend, base); +} + +char *Port::ull_to_string(char *buffer, ulonglong ull) +{ + sprintf(buffer, "%llu", ull); + return buffer; +} + +wchar_t *Port::ull_to_string(wchar_t *buffer, ulonglong ull) +{ + swprintf(buffer, sizeof(ulonglong) * 3 + 1, L"%llu", ull); + return buffer; +} + +double Port::ull_to_double(ulonglong ull) +{ + return (double) ull; +} + +const char *Port::list_separator() +{ + // LOCALE_SLIST for Windows + return ","; +} + +const wchar_t *Port::wlist_separator() +{ + // LOCALE_SLIST for Windows + return L","; +} + +char *Port::strupr(char *s) +{ + return ::strupr(s); +} + +#endif + +#if _MSC_VER + +// Disable useless warnings about unreferenced functions +#pragma warning (disable : 4514) + +#include <math.h> +#include <float.h> +#include <time.h> +#include <errno.h> +#include <string.h> +#include <ctype.h> +#include <stdlib.h> + +static unsigned long nanarray[2]= { 0xFFFFFFFF, 0x7FFFFFFF }; +//static unsigned long nanarray[2] = {0,0x7FF80000 }; +double Port::nan = (*(double *)nanarray); + +//static unsigned long infinityarray[2] = {0,0x7FF00000 }; +static double zero = 0; +double Port::infinity = 1 / zero; + +double Port::dbl_max = DBL_MAX; +double Port::dbl_min = DBL_MIN; + +struct PortInitializer +{ + PortInitializer(); +}; + +static PortInitializer portinitializer; + +PortInitializer::PortInitializer() +{ + Port::infinity = std::numeric_limits<long double>::infinity(); +} + +int Port::isNan(double r) +{ + return ::_isnan(r); +} + +int Port::isNan(long double r) +{ + return ::_isnan(r); +} + +int Port::isSignallingNan(double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 51 of 0..63 for 64 bit doubles. + */ + return isNan(r) && !((((unsigned char*)&r)[6]) & 8); +} + +int Port::isSignallingNan(long double r) +{ + /* MSVC doesn't have 80 bit long doubles + */ + return isSignallingNan((double) r); +} + +int Port::isFinite(double r) +{ + return ::_finite(r); +} + +int Port::isInfinity(double r) +{ + return (::_fpclass(r) & (_FPCLASS_NINF | _FPCLASS_PINF)); +} + +int Port::Signbit(double r) +{ + return (long)(((long *)&(r))[1] & 0x80000000); +} + +double Port::floor(double d) +{ + return ::floor(d); +} + +double Port::pow(double x, double y) +{ + if (y == 0) + return 1; // even if x is NAN + return ::pow(x, y); +} + +unsigned _int64 Port::strtoull(const char *p, char **pend, int base) +{ + unsigned _int64 number = 0; + int c; + int error; + #define ULLONG_MAX ((unsigned _int64)~0I64) + + while (isspace(*p)) /* skip leading white space */ + p++; + if (*p == '+') + p++; + switch (base) + { case 0: + base = 10; /* assume decimal base */ + if (*p == '0') + { base = 8; /* could be octal */ + p++; + switch (*p) + { case 'x': + case 'X': + base = 16; /* hex */ + p++; + break; +#if BINARY + case 'b': + case 'B': + base = 2; /* binary */ + p++; + break; +#endif + } + } + break; + case 16: /* skip over '0x' and '0X' */ + if (*p == '0' && (p[1] == 'x' || p[1] == 'X')) + p += 2; + break; +#if BINARY + case 2: /* skip over '0b' and '0B' */ + if (*p == '0' && (p[1] == 'b' || p[1] == 'B')) + p += 2; + break; +#endif + } + error = 0; + for (;;) + { c = *p; + if (isdigit(c)) + c -= '0'; + else if (isalpha(c)) + c = (c & ~0x20) - ('A' - 10); + else /* unrecognized character */ + break; + if (c >= base) /* not in number base */ + break; + if ((ULLONG_MAX - c) / base < number) + error = 1; + number = number * base + c; + p++; + } + if (pend) + *pend = (char *)p; + if (error) + { number = ULLONG_MAX; + errno = ERANGE; + } + return number; +} + +char *Port::ull_to_string(char *buffer, ulonglong ull) +{ + _ui64toa(ull, buffer, 10); + return buffer; +} + +wchar_t *Port::ull_to_string(wchar_t *buffer, ulonglong ull) +{ + _ui64tow(ull, buffer, 10); + return buffer; +} + +double Port::ull_to_double(ulonglong ull) +{ double d; + + if ((__int64) ull < 0) + { + // MSVC doesn't implement the conversion + d = (double) (__int64)(ull - 0x8000000000000000i64); + d += (double)(signed __int64)(0x7FFFFFFFFFFFFFFFi64) + 1.0; + } + else + d = (double)(__int64)ull; + return d; +} + +const char *Port::list_separator() +{ + // LOCALE_SLIST for Windows + return ","; +} + +const wchar_t *Port::wlist_separator() +{ + // LOCALE_SLIST for Windows + return L","; +} + +char *Port::strupr(char *s) +{ + return ::strupr(s); +} + +#endif + +#if linux || __APPLE__ || __FreeBSD__ + +#include <math.h> +#if linux +#include <bits/nan.h> +#include <bits/mathdef.h> +#endif +#include <time.h> +#include <sys/time.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <ctype.h> + +static double zero = 0; +double Port::nan = NAN; +double Port::infinity = 1 / zero; +double Port::dbl_max = 1.7976931348623157e308; +double Port::dbl_min = 5e-324; + +struct PortInitializer +{ + PortInitializer(); +}; + +static PortInitializer portinitializer; + +PortInitializer::PortInitializer() +{ + // gcc nan's have the sign bit set by default, so turn it off + // Need the volatile to prevent gcc from doing incorrect + // constant folding. + volatile long double foo; + foo = NAN; + if (signbit(foo)) // signbit sometimes, not always, set + foo = -foo; // turn off sign bit + Port::nan = foo; +} + +#undef isnan +int Port::isNan(double r) +{ +#if __APPLE__ + return __inline_isnan(r); +#else + return ::isnan(r); +#endif +} + +int Port::isNan(long double r) +{ +#if __APPLE__ + return __inline_isnan(r); +#else + return ::isnan(r); +#endif +} + +int Port::isSignallingNan(double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 51 of 0..63 for 64 bit doubles. + */ + return isNan(r) && !((((unsigned char*)&r)[6]) & 8); +} + +int Port::isSignallingNan(long double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 62 of 0..79 for 80 bit reals. + */ + return isNan(r) && !((((unsigned char*)&r)[7]) & 0x40); +} + +#undef isfinite +int Port::isFinite(double r) +{ + return ::finite(r); +} + +#undef isinf +int Port::isInfinity(double r) +{ +#if __APPLE__ + return fpclassify(r) == FP_INFINITE; +#else + return ::isinf(r); +#endif +} + +#undef signbit +int Port::Signbit(double r) +{ + return (long)(((long *)&r)[1] & 0x80000000); +} + +double Port::floor(double d) +{ + return ::floor(d); +} + +double Port::pow(double x, double y) +{ + return ::pow(x, y); +} + +unsigned long long Port::strtoull(const char *p, char **pend, int base) +{ + return ::strtoull(p, pend, base); +} + +char *Port::ull_to_string(char *buffer, ulonglong ull) +{ + sprintf(buffer, "%llu", ull); + return buffer; +} + +wchar_t *Port::ull_to_string(wchar_t *buffer, ulonglong ull) +{ + swprintf(buffer, sizeof(ulonglong) * 3 + 1, L"%llu", ull); + return buffer; +} + +double Port::ull_to_double(ulonglong ull) +{ + return (double) ull; +} + +const char *Port::list_separator() +{ + return ","; +} + +const wchar_t *Port::wlist_separator() +{ + return L","; +} + +char *Port::strupr(char *s) +{ + char *t = s; + + while (*s) + { + *s = toupper(*s); + s++; + } + + return t; +} + +#endif + +#if defined (__SVR4) && defined (__sun) + +#define __C99FEATURES__ 1 // Needed on Solaris for NaN and more +#include <math.h> +#include <time.h> +#include <sys/time.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <ctype.h> + +static double zero = 0; +double Port::nan = NAN; +double Port::infinity = 1 / zero; +double Port::dbl_max = 1.7976931348623157e308; +double Port::dbl_min = 5e-324; + +struct PortInitializer +{ + PortInitializer(); +}; + +static PortInitializer portinitializer; + +PortInitializer::PortInitializer() +{ + // gcc nan's have the sign bit set by default, so turn it off + // Need the volatile to prevent gcc from doing incorrect + // constant folding. + volatile long double foo; + foo = NAN; + if (signbit(foo)) // signbit sometimes, not always, set + foo = -foo; // turn off sign bit + Port::nan = foo; +} + +#undef isnan +int Port::isNan(double r) +{ +#if __APPLE__ + return __inline_isnan(r); +#else + return ::isnan(r); +#endif +} + +int Port::isNan(long double r) +{ +#if __APPLE__ + return __inline_isnan(r); +#else + return ::isnan(r); +#endif +} + +int Port::isSignallingNan(double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 51 of 0..63 for 64 bit doubles. + */ + return isNan(r) && !((((unsigned char*)&r)[6]) & 8); +} + +int Port::isSignallingNan(long double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 62 of 0..79 for 80 bit reals. + */ + return isNan(r) && !((((unsigned char*)&r)[7]) & 0x40); +} + +#undef isfinite +int Port::isFinite(double r) +{ + return ::finite(r); +} + +#undef isinf +int Port::isInfinity(double r) +{ + return ::isinf(r); +} + +#undef signbit +int Port::Signbit(double r) +{ + return (long)(((long *)&r)[1] & 0x80000000); +} + +double Port::floor(double d) +{ + return ::floor(d); +} + +double Port::pow(double x, double y) +{ + return ::pow(x, y); +} + +unsigned long long Port::strtoull(const char *p, char **pend, int base) +{ + return ::strtoull(p, pend, base); +} + +char *Port::ull_to_string(char *buffer, ulonglong ull) +{ + sprintf(buffer, "%llu", ull); + return buffer; +} + +wchar_t *Port::ull_to_string(wchar_t *buffer, ulonglong ull) +{ + swprintf(buffer, sizeof(ulonglong) * 3 + 1, L"%llu", ull); + return buffer; +} + +double Port::ull_to_double(ulonglong ull) +{ + return (double) ull; +} + +const char *Port::list_separator() +{ + return ","; +} + +const wchar_t *Port::wlist_separator() +{ + return L","; +} + +char *Port::strupr(char *s) +{ + char *t = s; + + while (*s) + { + *s = toupper(*s); + s++; + } + + return t; +} + +#endif + +#if IN_GCC + +#include <math.h> +#include <bits/nan.h> +#include <bits/mathdef.h> +#include <time.h> +#include <sys/time.h> +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <ctype.h> + +static double zero = 0; +double Port::nan = NAN; +double Port::infinity = 1 / zero; +double Port::dbl_max = 1.7976931348623157e308; +double Port::dbl_min = 5e-324; + +#include "d-gcc-real.h" +extern "C" bool real_isnan (const real_t *); + +struct PortInitializer +{ + PortInitializer(); +}; + +static PortInitializer portinitializer; + +PortInitializer::PortInitializer() +{ + Port::infinity = real_t::getinfinity(); + Port::nan = real_t::getnan(real_t::LongDouble); +} + +#undef isnan +int Port::isNan(double r) +{ +#if __APPLE__ + return __inline_isnan(r); +#else + return ::isnan(r); +#endif +} + +int Port::isNan(long double r) +{ + return real_isnan(&r); +} + +int Port::isSignallingNan(double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 51 of 0..63 for 64 bit doubles. + */ + return isNan(r) && !((((unsigned char*)&r)[6]) & 8); +} + +int Port::isSignallingNan(long double r) +{ + /* A signalling NaN is a NaN with 0 as the most significant bit of + * its significand, which is bit 62 of 0..79 for 80 bit reals. + */ + return isNan(r) && !((((unsigned char*)&r)[7]) & 0x40); +} + +#undef isfinite +int Port::isFinite(double r) +{ + return ::finite(r); +} + +#undef isinf +int Port::isInfinity(double r) +{ + return ::isinf(r); +} + +#undef signbit +int Port::Signbit(double r) +{ + return (long)(((long *)&r)[1] & 0x80000000); +} + +double Port::floor(double d) +{ + return ::floor(d); +} + +double Port::pow(double x, double y) +{ + return ::pow(x, y); +} + +unsigned long long Port::strtoull(const char *p, char **pend, int base) +{ + return ::strtoull(p, pend, base); +} + +char *Port::ull_to_string(char *buffer, ulonglong ull) +{ + sprintf(buffer, "%llu", ull); + return buffer; +} + +wchar_t *Port::ull_to_string(wchar_t *buffer, ulonglong ull) +{ + swprintf(buffer, L"%llu", ull); + return buffer; +} + +double Port::ull_to_double(ulonglong ull) +{ + return (double) ull; +} + +const char *Port::list_separator() +{ + return ","; +} + +const wchar_t *Port::wlist_separator() +{ + return L","; +} + +char *Port::strupr(char *s) +{ + char *t = s; + + while (*s) + { + *s = toupper(*s); + s++; + } + + return t; +} + +#endif +