| /**************************************************************** |
| |
| The author of this software is David M. Gay. |
| |
| Copyright (C) 1998 by Lucent Technologies |
| All Rights Reserved |
| |
| Permission to use, copy, modify, and distribute this software and |
| its documentation for any purpose and without fee is hereby |
| granted, provided that the above copyright notice appear in all |
| copies and that both that the copyright notice and this |
| permission notice and warranty disclaimer appear in supporting |
| documentation, and that the name of Lucent or any of its entities |
| not be used in advertising or publicity pertaining to |
| distribution of the software without specific, written prior |
| permission. |
| |
| LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. |
| IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY |
| SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER |
| IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, |
| ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF |
| THIS SOFTWARE. |
| |
| ****************************************************************/ |
| |
| /* Please send bug reports to David M. Gay (dmg at acm dot org, |
| * with " at " changed at "@" and " dot " changed to "."). */ |
| |
| #ifndef GDTOA_H_INCLUDED |
| #define GDTOA_H_INCLUDED |
| |
| #include "arith.h" |
| #include <stddef.h> /* for size_t */ |
| |
| #ifndef Long |
| #define Long int |
| #endif |
| #ifndef ULong |
| typedef unsigned Long ULong; |
| #endif |
| #ifndef UShort |
| typedef unsigned short UShort; |
| #endif |
| |
| #ifndef ANSI |
| #ifdef KR_headers |
| #define ANSI(x) () |
| #define Void /*nothing*/ |
| #else |
| #define ANSI(x) x |
| #define Void void |
| #endif |
| #endif /* ANSI */ |
| |
| #ifndef CONST |
| #ifdef KR_headers |
| #define CONST /* blank */ |
| #else |
| #define CONST const |
| #endif |
| #endif /* CONST */ |
| |
| enum { /* return values from strtodg */ |
| STRTOG_Zero = 0, |
| STRTOG_Normal = 1, |
| STRTOG_Denormal = 2, |
| STRTOG_Infinite = 3, |
| STRTOG_NaN = 4, |
| STRTOG_NaNbits = 5, |
| STRTOG_NoNumber = 6, |
| STRTOG_Retmask = 7, |
| |
| /* The following may be or-ed into one of the above values. */ |
| |
| STRTOG_Neg = 0x08, /* does not affect STRTOG_Inexlo or STRTOG_Inexhi */ |
| STRTOG_Inexlo = 0x10, /* returned result rounded toward zero */ |
| STRTOG_Inexhi = 0x20, /* returned result rounded away from zero */ |
| STRTOG_Inexact = 0x30, |
| STRTOG_Underflow= 0x40, |
| STRTOG_Overflow = 0x80 |
| }; |
| |
| typedef struct |
| FPI { |
| int nbits; |
| int emin; |
| int emax; |
| int rounding; |
| int sudden_underflow; |
| } FPI; |
| |
| enum { /* FPI.rounding values: same as FLT_ROUNDS */ |
| FPI_Round_zero = 0, |
| FPI_Round_near = 1, |
| FPI_Round_up = 2, |
| FPI_Round_down = 3 |
| }; |
| |
| /* |
| * Redefine names dtoa(), freedtoa() |
| */ |
| |
| #define dtoa __dtoa |
| #define freedtoa __freedtoa |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| extern char* dtoa ANSI((double d, int mode, int ndigits, int *decpt, |
| int *sign, char **rve)); |
| extern char* gdtoa ANSI((FPI *fpi, int be, ULong *bits, int *kindp, |
| int mode, int ndigits, int *decpt, char **rve)); |
| extern void freedtoa ANSI((char*)); |
| extern float strtof ANSI((CONST char *, char **)); |
| extern double strtod ANSI((CONST char *, char **)); |
| extern int strtodg ANSI((CONST char*, char**, FPI*, Long*, ULong*)); |
| |
| extern char* g_ddfmt ANSI((char*, double*, int, size_t)); |
| extern char* g_dfmt ANSI((char*, double*, int, size_t)); |
| extern char* g_ffmt ANSI((char*, float*, int, size_t)); |
| extern char* g_Qfmt ANSI((char*, void*, int, size_t)); |
| extern char* g_xfmt ANSI((char*, void*, int, size_t)); |
| extern char* g_xLfmt ANSI((char*, void*, int, size_t)); |
| |
| extern int strtoId ANSI((CONST char*, char**, double*, double*)); |
| extern int strtoIdd ANSI((CONST char*, char**, double*, double*)); |
| extern int strtoIf ANSI((CONST char*, char**, float*, float*)); |
| extern int strtoIQ ANSI((CONST char*, char**, void*, void*)); |
| extern int strtoIx ANSI((CONST char*, char**, void*, void*)); |
| extern int strtoIxL ANSI((CONST char*, char**, void*, void*)); |
| extern int strtord ANSI((CONST char*, char**, int, double*)); |
| extern int strtordd ANSI((CONST char*, char**, int, double*)); |
| extern int strtorf ANSI((CONST char*, char**, int, float*)); |
| extern int strtorQ ANSI((CONST char*, char**, int, void*)); |
| extern int strtorx ANSI((CONST char*, char**, int, void*)); |
| extern int strtorxL ANSI((CONST char*, char**, int, void*)); |
| #if 1 |
| extern int strtodI ANSI((CONST char*, char**, double*)); |
| extern int strtopd ANSI((CONST char*, char**, double*)); |
| extern int strtopdd ANSI((CONST char*, char**, double*)); |
| extern int strtopf ANSI((CONST char*, char**, float*)); |
| extern int strtopQ ANSI((CONST char*, char**, void*)); |
| extern int strtopx ANSI((CONST char*, char**, void*)); |
| extern int strtopxL ANSI((CONST char*, char**, void*)); |
| #else |
| #define strtopd(s,se,x) strtord(s,se,1,x) |
| #define strtopdd(s,se,x) strtordd(s,se,1,x) |
| #define strtopf(s,se,x) strtorf(s,se,1,x) |
| #define strtopQ(s,se,x) strtorQ(s,se,1,x) |
| #define strtopx(s,se,x) strtorx(s,se,1,x) |
| #define strtopxL(s,se,x) strtorxL(s,se,1,x) |
| #endif |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| #endif /* GDTOA_H_INCLUDED */ |