tiny C support; cosmetic improvements for the docs

1 files changed, 224 insertions, 0 deletions

diff --git a/tinyc/win32/include/float.h b/tinyc/win32/include/float.h
new file mode 100755
index 000000000..a6fb6dbe0
--- /dev/null
+++ b/tinyc/win32/include/float.h
@@ -0,0 +1,224 @@
+/* 
+ * float.h
+ *
+ * Constants related to floating point arithmetic.
+ *
+ * Also included here are some non-ANSI bits for accessing the floating
+ * point controller.
+ *
+ * NOTE: GCC provides float.h, and it is probably more accurate than this,
+ *       but it doesn't include the non-standard stuff for accessing the
+ *       fp controller. (TODO: Move those bits elsewhere?) Thus it is
+ *       probably not a good idea to use the GCC supplied version instead
+ *       of this header.
+ *
+ * This file is part of the Mingw32 package.
+ *
+ * Contributors:
+ *  Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
+ *
+ *  THIS SOFTWARE IS NOT COPYRIGHTED
+ *
+ *  This source code is offered for use in the public domain. You may
+ *  use, modify or distribute it freely.
+ *
+ *  This code is distributed in the hope that it will be useful but
+ *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
+ *  DISCLAIMED. This includes but is not limited to warranties of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * $Revision: 1.2 $
+ * $Author: bellard $
+ * $Date: 2005/04/17 13:14:29 $
+ *
+ */
+
+#ifndef _FLOAT_H_
+#define _FLOAT_H_
+
+/* All the headers include this file. */
+#include <_mingw.h>
+
+#define FLT_ROUNDS	1
+#define FLT_GUARD	1
+#define FLT_NORMALIZE	1
+
+/*
+ * The characteristics of float.
+ */
+
+/* The radix for floating point representation. */
+#define FLT_RADIX	2
+
+/* Decimal digits of precision. */
+#define FLT_DIG		6
+
+/* Smallest number such that 1+x != 1 */
+#define FLT_EPSILON	1.19209290e-07F
+
+/* The number of base FLT_RADIX digits in the mantissa. */
+#define FLT_MANT_DIG	24
+
+/* The maximum floating point number. */
+#define FLT_MAX		3.40282347e+38F
+
+/* Maximum n such that FLT_RADIX^n - 1 is representable. */
+#define FLT_MAX_EXP	128
+
+/* Maximum n such that 10^n is representable. */
+#define FLT_MAX_10_EXP	38
+
+/* Minimum normalized floating-point number. */
+#define FLT_MIN		1.17549435e-38F
+
+/* Minimum n such that FLT_RADIX^n is a normalized number. */
+#define FLT_MIN_EXP	(-125)
+
+/* Minimum n such that 10^n is a normalized number. */
+#define FLT_MIN_10_EXP	(-37)
+
+
+/*
+ * The characteristics of double.
+ */
+#define DBL_DIG		15
+#define DBL_EPSILON	1.1102230246251568e-16
+#define DBL_MANT_DIG	53
+#define DBL_MAX		1.7976931348623157e+308
+#define DBL_MAX_EXP	1024
+#define DBL_MAX_10_EXP	308
+#define DBL_MIN		2.2250738585072014e-308
+#define DBL_MIN_EXP	(-1021)
+#define DBL_MIN_10_EXP	(-307)
+
+
+/*
+ * The characteristics of long double.
+ * NOTE: long double is the same as double.
+ */
+#define LDBL_DIG	15
+#define LDBL_EPSILON	1.1102230246251568e-16L
+#define LDBL_MANT_DIG	53
+#define LDBL_MAX	1.7976931348623157e+308L
+#define LDBL_MAX_EXP	1024
+#define LDBL_MAX_10_EXP	308
+#define LDBL_MIN	2.2250738585072014e-308L
+#define LDBL_MIN_EXP	(-1021)
+#define LDBL_MIN_10_EXP	(-307)
+
+
+/*
+ * Functions and definitions for controlling the FPU.
+ */
+#ifndef	__STRICT_ANSI__
+
+/* TODO: These constants are only valid for x86 machines */
+
+/* Control word masks for unMask */
+#define	_MCW_EM		0x0008001F	/* Error masks */
+#define	_MCW_IC		0x00040000	/* Infinity */
+#define	_MCW_RC		0x00000300	/* Rounding */
+#define	_MCW_PC		0x00030000	/* Precision */
+
+/* Control word values for unNew (use with related unMask above) */
+#define	_EM_INVALID	0x00000010
+#define	_EM_DENORMAL	0x00080000
+#define	_EM_ZERODIVIDE	0x00000008
+#define	_EM_OVERFLOW	0x00000004
+#define	_EM_UNDERFLOW	0x00000002
+#define	_EM_INEXACT	0x00000001
+#define	_IC_AFFINE	0x00040000
+#define	_IC_PROJECTIVE	0x00000000
+#define	_RC_CHOP	0x00000300
+#define	_RC_UP		0x00000200
+#define	_RC_DOWN	0x00000100
+#define	_RC_NEAR	0x00000000
+#define	_PC_24		0x00020000
+#define	_PC_53		0x00010000
+#define	_PC_64		0x00000000
+
+/* These are also defined in Mingw math.h, needed to work around
+   GCC build issues.  */
+/* Return values for fpclass. */
+#ifndef __MINGW_FPCLASS_DEFINED
+#define __MINGW_FPCLASS_DEFINED 1
+#define	_FPCLASS_SNAN	0x0001	/* Signaling "Not a Number" */
+#define	_FPCLASS_QNAN	0x0002	/* Quiet "Not a Number" */
+#define	_FPCLASS_NINF	0x0004	/* Negative Infinity */
+#define	_FPCLASS_NN	0x0008	/* Negative Normal */
+#define	_FPCLASS_ND	0x0010	/* Negative Denormal */
+#define	_FPCLASS_NZ	0x0020	/* Negative Zero */
+#define	_FPCLASS_PZ	0x0040	/* Positive Zero */
+#define	_FPCLASS_PD	0x0080	/* Positive Denormal */
+#define	_FPCLASS_PN	0x0100	/* Positive Normal */
+#define	_FPCLASS_PINF	0x0200	/* Positive Infinity */
+#endif /* __MINGW_FPCLASS_DEFINED */
+
+/* invalid subconditions (_SW_INVALID also set) */
+#define _SW_UNEMULATED		0x0040  /* unemulated instruction */
+#define _SW_SQRTNEG		0x0080  /* square root of a neg number */
+#define _SW_STACKOVERFLOW	0x0200  /* FP stack overflow */
+#define _SW_STACKUNDERFLOW	0x0400  /* FP stack underflow */
+
+/*  Floating point error signals and return codes */
+#define _FPE_INVALID		0x81
+#define _FPE_DENORMAL		0x82
+#define _FPE_ZERODIVIDE		0x83
+#define _FPE_OVERFLOW		0x84
+#define _FPE_UNDERFLOW		0x85
+#define _FPE_INEXACT		0x86
+#define _FPE_UNEMULATED		0x87
+#define _FPE_SQRTNEG		0x88
+#define _FPE_STACKOVERFLOW	0x8a
+#define _FPE_STACKUNDERFLOW	0x8b
+#define _FPE_EXPLICITGEN	0x8c    /* raise( SIGFPE ); */
+
+#ifndef RC_INVOKED
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/* Set the FPU control word as cw = (cw & ~unMask) | (unNew & unMask),
+ * i.e. change the bits in unMask to have the values they have in unNew,
+ * leaving other bits unchanged. */
+unsigned int	_controlfp (unsigned int unNew, unsigned int unMask);
+unsigned int	_control87 (unsigned int unNew, unsigned int unMask);
+
+
+unsigned int	_clearfp (void);	/* Clear the FPU status word */
+unsigned int	_statusfp (void);	/* Report the FPU status word */
+#define		_clear87	_clearfp
+#define		_status87	_statusfp
+
+void		_fpreset (void);	/* Reset the FPU */
+void		fpreset (void);
+
+/* Global 'variable' for the current floating point error code. */
+int *	__fpecode(void);
+#define	_fpecode	(*(__fpecode()))
+
+/*
+ * IEEE recommended functions
+ */
+
+double	_chgsign	(double);
+double	_copysign	(double, double);
+double	_logb		(double);
+double	_nextafter	(double, double);
+double	_scalb		(double, long);
+
+int	_finite		(double);
+int	_fpclass	(double);
+int	_isnan		(double);
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* Not RC_INVOKED */
+
+#endif	/* Not __STRICT_ANSI__ */
+
+#endif /* _FLOAT_H_ */
+