1 files changed, 425 insertions, 0 deletions
diff --git a/nimlib/nimbase.h b/nimlib/nimbase.h
new file mode 100755
index 000000000..a0f08f4f3
--- /dev/null
+++ b/nimlib/nimbase.h
@@ -0,0 +1,425 @@
+/*
+
+            Nimrod's Runtime Library
+        (c) Copyright 2009 Andreas Rumpf
+
+    See the file "copying.txt", included in this
+    distribution, for details about the copyright.
+*/
+
+/* compiler symbols:
+__BORLANDC__
+_MSC_VER
+__WATCOMC__
+__LCC__
+__GNUC__
+__DMC__
+__POCC__
+__TINYC__
+*/
+
+
+#ifndef NIMBASE_H
+#define NIMBASE_H
+
+#include  <math.h>
+
+/* calling convention mess ----------------------------------------------- */
+#if defined(__GNUC__) || defined(__LCC__) || defined(__POCC__) \
+                      || defined(__TINYC__)
+  /* these should support C99's inline */
+  /* the test for __POCC__ has to come before the test for _MSC_VER,
+     because PellesC defines _MSC_VER too. This is brain-dead. */
+#  define N_INLINE(rettype, name) inline rettype name
+#elif defined(__BORLANDC__) || defined(_MSC_VER)
+/* Borland's compiler is really STRANGE here; note that the __fastcall
+   keyword cannot be before the return type, but __inline cannot be after
+   the return type, so we do not handle this mess in the code generator
+   but rather here. */
+#  define N_INLINE(rettype, name) __inline rettype name
+#elif defined(__DMC__)
+#  define N_INLINE(rettype, name) inline rettype name
+#elif defined(__WATCOMC__)
+#  define N_INLINE(rettype, name) __inline rettype name
+#else /* others are less picky: */
+#  define N_INLINE(rettype, name) rettype __inline name
+#endif
+
+#if defined(__POCC__) || defined(_MSC_VER)
+#  define HAVE_LRINT 1
+#endif
+
+#if defined(__POCC__)
+#  define NIM_CONST /* PCC is really picky with const modifiers */
+#  undef _MSC_VER /* Yeah, right PCC defines _MSC_VER even if it is
+                     not that compatible. Well done. */
+#elif defined(__cplusplus)
+#  define NIM_CONST /* C++ is picky with const modifiers */
+#else
+#  define NIM_CONST  const
+#endif
+
+#define NIM_THREADVAR __thread
+
+/* --------------- how int64 constants should be declared: ----------- */
+#if defined(__GNUC__) || defined(__LCC__) || \
+    defined(__POCC__) || defined(__DMC__)
+#  define IL64(x) x##LL
+#else /* works only without LL */
+#  define IL64(x) x
+#endif
+
+/* ---------------- casting without correct aliasing rules ----------- */
+
+#if defined(__GNUCC__)
+#  define NIM_CAST(type, ptr) (((union{type __x__;}*)(ptr))->__x__)
+#else
+#  define NIM_CAST(type, ptr) ((type)(ptr))
+#endif
+
+/* ------------------------------------------------------------------- */
+
+#if defined(WIN32) || defined(_WIN32) /* only Windows has this mess... */
+#  define N_CDECL(rettype, name) rettype __cdecl name
+#  define N_STDCALL(rettype, name) rettype __stdcall name
+#  define N_SYSCALL(rettype, name) rettype __syscall name
+#  define N_FASTCALL(rettype, name) rettype __fastcall name
+#  define N_SAFECALL(rettype, name) rettype __safecall name
+/* function pointers with calling convention: */
+#  define N_CDECL_PTR(rettype, name) rettype (__cdecl *name)
+#  define N_STDCALL_PTR(rettype, name) rettype (__stdcall *name)
+#  define N_SYSCALL_PTR(rettype, name) rettype (__syscall *name)
+#  define N_FASTCALL_PTR(rettype, name) rettype (__fastcall *name)
+#  define N_SAFECALL_PTR(rettype, name) rettype (__safecall *name)
+
+#  define N_LIB_EXPORT  extern __declspec(dllexport)
+#  define N_LIB_IMPORT  extern __declspec(dllimport)
+#else
+#  define N_CDECL(rettype, name) rettype name
+#  define N_STDCALL(rettype, name) rettype name
+#  define N_SYSCALL(rettype, name) rettype name
+#  define N_FASTCALL(rettype, name) rettype name
+#  define N_SAFECALL(rettype, name) rettype name
+/* function pointers with calling convention: */
+#  define N_CDECL_PTR(rettype, name) rettype (*name)
+#  define N_STDCALL_PTR(rettype, name) rettype (*name)
+#  define N_SYSCALL_PTR(rettype, name) rettype (*name)
+#  define N_FASTCALL_PTR(rettype, name) rettype (*name)
+#  define N_SAFECALL_PTR(rettype, name) rettype (*name)
+
+#  define N_LIB_EXPORT  extern
+#  define N_LIB_IMPORT  extern
+#endif
+
+#define N_NOCONV(rettype, name) rettype name
+/* specify no calling convention */
+#define N_NOCONV_PTR(rettype, name) rettype (*name)
+
+#define N_CLOSURE(rettype, name) rettype name
+/* specify no calling convention */
+#define N_CLOSURE_PTR(rettype, name) rettype (*name)
+
+
+#if defined(__GNUC__) || defined(__ICC__)
+#  define N_NOINLINE(rettype, name) rettype __attribute__((noinline)) name
+#elif defined(_MSC_VER)
+#  define N_NOINLINE(rettype, name) __declspec(noinline) rettype name
+#else
+#  define N_NOINLINE(rettype, name) rettype name
+#endif
+
+#define N_NOINLINE_PTR(rettype, name) rettype (*name)
+
+#if defined(__BORLANDC__) || defined(__WATCOMC__) || \
+    defined(__POCC__) || defined(_MSC_VER)
+/* these compilers have a fastcall so use it: */
+#  define N_NIMCALL(rettype, name) rettype __fastcall name
+#  define N_NIMCALL_PTR(rettype, name) rettype (__fastcall *name)
+#else
+#  define N_NIMCALL(rettype, name) rettype name /* no modifier */
+#  define N_NIMCALL_PTR(rettype, name) rettype (*name)
+#endif
+
+/* ----------------------------------------------------------------------- */
+
+/* from float_cast.h: */
+
+/*
+** Copyright (C) 2001 Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+**
+** Permission to use, copy, modify, distribute, and sell this file for any
+** purpose is hereby granted without fee, provided that the above copyright
+** and this permission notice appear in all copies.  No representations are
+** made about the suitability of this software for any purpose.  It is
+** provided "as is" without express or implied warranty.
+*/
+
+/* Version 1.1 */
+
+
+/*============================================================================
+**  On Intel Pentium processors (especially PIII and probably P4), converting
+**  from float to int is very slow. To meet the C specs, the code produced by
+**  most C compilers targeting Pentium needs to change the FPU rounding mode
+**  before the float to int conversion is performed.
+**
+**  Changing the FPU rounding mode causes the FPU pipeline to be flushed. It
+**  is this flushing of the pipeline which is so slow.
+**
+**  Fortunately the ISO C99 specifications define the functions lrint, lrintf,
+**  llrint and llrintf which fix this problem as a side effect.
+**
+**  On Unix-like systems, the configure process should have detected the
+**  presence of these functions. If they weren't found we have to replace them
+**  here with a standard C cast.
+*/
+
+/*
+**	The C99 prototypes for lrint and lrintf are as follows:
+**
+**		long int lrintf (float x);
+**		long int lrint  (double x);
+*/
+
+#if defined(__LCC__) || (defined(__GNUC__) && defined(WIN32))
+/* Linux' GCC does not seem to have these. Why? */
+#  define HAVE_LRINT
+#  define HAVE_LRINTF
+#endif
+
+#if defined(HAVE_LRINT) && defined(HAVE_LRINTF)
+
+/*  These defines enable functionality introduced with the 1999 ISO C
+**  standard. They must be defined before the inclusion of math.h to
+**  engage them. If optimisation is enabled, these functions will be
+**  inlined. With optimisation switched off, you have to link in the
+**  maths library using -lm.
+*/
+
+#  define  _ISOC9X_SOURCE  1
+#  define  _ISOC99_SOURCE  1
+#  define  __USE_ISOC9X  1
+#  define  __USE_ISOC99  1
+
+#elif (defined(WIN32) || defined(_WIN32) || defined(__WIN32__)) \
+   && !defined(__BORLANDC__) && !defined(__POCC__)
+
+/*  Win32 doesn't seem to have these functions.
+**  Therefore implement inline versions of these functions here.
+*/
+static N_INLINE(long int, lrint)(double flt) {
+  long int intgr;
+  _asm {
+    fld flt
+    fistp intgr
+  };
+  return intgr;
+}
+
+static N_INLINE(long int, lrintf)(float flt) {
+  long int intgr;
+  _asm {
+    fld flt
+    fistp intgr
+  };
+  return intgr;
+}
+
+#else
+
+#  ifndef lrint
+#    define  lrint(dbl)   ((long int)(dbl))
+#  endif
+#  ifndef lrintf
+#    define  lrintf(flt)  ((long int)(flt))
+#  endif
+
+#endif /* defined(HAVE_LRINT) && defined(HAVE_LRINTF) */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <limits.h>
+#include <stddef.h>
+#include <signal.h>
+#include <setjmp.h>
+
+/*
+#ifndef INF
+static unsigned long nimInf[2]={0xffffffff, 0x7fffffff};
+#  define INF (*(double*) nimInf)
+#endif */
+
+/* C99 compiler? */
+#if (defined(__STD_VERSION__) && (__STD_VERSION__ >= 199901))
+#  define HAVE_STDINT_H
+#endif
+
+#if defined(__LCC__) || defined(__DMC__) || defined(__POCC__)
+#  define HAVE_STDINT_H
+#endif
+
+/* bool types (C++ has it): */
+#ifdef __cplusplus
+#  ifndef NIM_TRUE
+#    define NIM_TRUE true
+#  endif
+#  ifndef NIM_FALSE
+#    define NIM_FALSE false
+#  endif
+#  define NIM_BOOL bool
+#else
+#  ifdef bool
+#    define NIM_BOOL bool
+#  else
+  typedef unsigned char NIM_BOOL;
+#  endif
+#  ifndef NIM_TRUE
+#    define NIM_TRUE ((NIM_BOOL) 1)
+#  endif
+#  ifndef NIM_FALSE
+#    define NIM_FALSE ((NIM_BOOL) 0)
+#  endif
+#endif
+
+#define NIM_NIL ((void*)0) /* C's NULL is fucked up in some C compilers, so
+                              the generated code does not rely on it anymore */
+
+#if defined(__BORLANDC__) || defined(__DMC__) \
+   || defined(__WATCOMC__) || defined(_MSC_VER)
+typedef signed char NI8;
+typedef signed short int NI16;
+typedef signed int NI32;
+/* XXX: Float128? */
+typedef unsigned char NU8;
+typedef unsigned short int NU16;
+typedef unsigned __int64 NU64;
+typedef __int64 NI64;
+typedef unsigned int NU32;
+#elif defined(HAVE_STDINT_H)
+#  include <stdint.h>
+typedef int8_t NI8;
+typedef int16_t NI16;
+typedef int32_t NI32;
+typedef int64_t NI64;
+typedef uint64_t NU64;
+typedef uint8_t NU8;
+typedef uint16_t NU16;
+typedef uint32_t NU32;
+#else
+typedef signed char NI8;
+typedef signed short int NI16;
+typedef signed int NI32;
+/* XXX: Float128? */
+typedef unsigned char NU8;
+typedef unsigned short int NU16;
+typedef unsigned long long int NU64;
+typedef long long int NI64;
+typedef unsigned int NU32;
+#endif
+
+typedef float NF32;
+typedef double NF64;
+typedef double NF;
+
+typedef char NIM_CHAR;
+typedef char* NCSTRING;
+
+#ifdef NIM_BIG_ENDIAN
+#  define NIM_IMAN 1
+#else
+#  define NIM_IMAN 0
+#endif
+
+static N_INLINE(NI32, float64ToInt32)(double val) {
+  val = val + 68719476736.0*1.5;
+  /* 2^36 * 1.5,  (52-_shiftamt=36) uses limited precisicion to floor */
+  return ((NI32*)&val)[NIM_IMAN] >> 16; /* 16.16 fixed point representation */
+}
+
+static N_INLINE(NI32, float32ToInt32)(float val) {
+  return float64ToInt32((double)val);
+}
+
+#define float64ToInt64(x) ((NI64) (x))
+
+#define zeroMem(a, size) memset(a, 0, size)
+#define equalMem(a, b, size) (memcmp(a, b, size) == 0)
+
+#define STRING_LITERAL(name, str, length) \
+  static const struct {                   \
+    TGenericSeq Sup;                      \
+    NIM_CHAR data[length + 1];            \
+  } name = {{length, length}, str}
+
+typedef struct TStringDesc* string;
+
+/* declared size of a sequence: */
+#if defined(__GNUC__)
+#  define SEQ_DECL_SIZE /* empty is correct! */
+#else
+#  define SEQ_DECL_SIZE 1000000
+#endif
+
+#define ALLOC_0(size)  calloc(1, size)
+#define DL_ALLOC_0(size) dlcalloc(1, size)
+
+#define GenericSeqSize sizeof(TGenericSeq)
+#define paramCount() cmdCount
+
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__i386__)
+#  ifndef NAN
+static unsigned long nimNaN[2]={0xffffffff, 0x7fffffff};
+#    define NAN (*(double*) nimNaN)
+#  endif
+#endif
+
+#ifndef NAN
+#  define NAN (0.0 / 0.0)
+#endif
+
+#ifndef INF
+#  ifdef INFINITY
+#    define INF INFINITY
+#  elif defined(HUGE_VAL)
+#    define INF  HUGE_VAL
+#  else
+#    define INF (1.0 / 0.0)
+#  endif
+#endif
+/*
+typedef struct TSafePoint TSafePoint;
+struct TSafePoint {
+  NI exc;
+  NCSTRING excname;
+  NCSTRING msg;
+  TSafePoint* prev;
+  jmp_buf context;
+}; */
+
+typedef struct TFrame TFrame;
+struct TFrame {
+  TFrame* prev;
+  NCSTRING procname;
+  NI line;
+  NCSTRING filename;
+  NI len;
+};
+
+extern TFrame* framePtr;
+/*extern TSafePoint* excHandler; */
+
+#if defined(__cplusplus)
+struct NimException {
+  TSafePoint sp;
+
+  NimException(NI aExc, NCSTRING aExcname, NCSTRING aMsg) {
+    sp.exc = aExc; sp.excname = aExcname; sp.msg = aMsg;
+    sp.prev = excHandler;
+    excHandler = &sp;
+  }
+};
+#endif
+
+#endif