diff options
| author | shigek <shigek@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-06-27 04:38:57 +0000 |
|---|---|---|
| committer | shigek <shigek@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2003-06-27 04:38:57 +0000 |
| commit | d3ce235babf3a5fa9a7904c45ec193e8962fe845 (patch) | |
| tree | 6d2a550cb79cddaee7a52a6aae149d1b3f0d3c16 /ext/bigdecimal/bigdecimal.h | |
| parent | 7e91b4b546634afa0203f7bd6d0e5092f8f7ee61 (diff) | |
1.From Tadashi Saito's advice
to_parts changed to split,assign removed, ** added,bugs in infinite? & nozero? fixed.
2.Rounding functionalities added
mode now accepts rounding mode.
round accepts second argument for Bankers' rounding.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4008 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ext/bigdecimal/bigdecimal.h')
| -rw-r--r-- | ext/bigdecimal/bigdecimal.h | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/ext/bigdecimal/bigdecimal.h b/ext/bigdecimal/bigdecimal.h index 8708d04b6f..3debb52826 100644 --- a/ext/bigdecimal/bigdecimal.h +++ b/ext/bigdecimal/bigdecimal.h @@ -32,7 +32,7 @@ extern "C" { #define S_INT int /* Exception codes */ -#define VP_EXCEPTION_ALL ((unsigned short)0xFFFF) +#define VP_EXCEPTION_ALL ((unsigned short)0x00FF) #define VP_EXCEPTION_INFINITY ((unsigned short)0x0001) #define VP_EXCEPTION_NaN ((unsigned short)0x0002) #define VP_EXCEPTION_UNDERFLOW ((unsigned short)0x0004) @@ -43,6 +43,14 @@ extern "C" { #define VP_EXCEPTION_OP ((unsigned short)0x0020) #define VP_EXCEPTION_MEMORY ((unsigned short)0x0040) +/* Computation mode */ +#define VP_COMP_MODE ((unsigned short)0x0100) +#define VP_COMP_MODE_TRUNCATE 0 +#define VP_COMP_MODE_ROUNDUP 1 +#define VP_COMP_MODE_CEIL 2 +#define VP_COMP_MODE_FLOOR 3 +#define VP_COMP_MODE_EVEN 4 + #define VP_SIGN_NaN 0 /* NaN */ #define VP_SIGN_POSITIVE_ZERO 1 /* Positive zero */ #define VP_SIGN_NEGATIVE_ZERO -1 /* Negative zero */ @@ -103,6 +111,10 @@ VP_EXPORT double VpGetDoubleNegZero(void); VP_EXPORT U_LONG VpGetPrecLimit(void); VP_EXPORT U_LONG VpSetPrecLimit(U_LONG n); +/* Computation mode */ +VP_EXPORT unsigned long VpGetCompMode(void); +VP_EXPORT unsigned long VpSetCompMode(unsigned long n); + VP_EXPORT int VpException(unsigned short f,char *str,int always); VP_EXPORT int VpIsNegDoubleZero(double v); VP_EXPORT U_LONG VpNumOfChars(Real *vp); @@ -123,14 +135,13 @@ VP_EXPORT void VpVtoD(double *d,S_LONG *e,Real *m); VP_EXPORT void VpDtoV(Real *m,double d); VP_EXPORT void VpItoV(Real *m,S_INT ival); VP_EXPORT int VpSqrt(Real *y,Real *x); -VP_EXPORT void VpRound(Real *y,Real *x,int sw,int f,int il); +VP_EXPORT void VpActiveRound(Real *y,Real *x,int f,int il); VP_EXPORT void VpFrac(Real *y,Real *x); VP_EXPORT int VpPower(Real *y,Real *x,S_INT n); VP_EXPORT void VpPi(Real *y); VP_EXPORT void VpExp1(Real *y); VP_EXPORT void VpExp(Real *y,Real *x); VP_EXPORT void VpSinCos(Real *psin,Real *pcos,Real *x); -VP_EXPORT int VPrint(FILE *fp,char *cntl_chr,Real *a); /* * ------------------ @@ -177,9 +188,11 @@ VP_EXPORT int VPrint(FILE *fp,char *cntl_chr,Real *a); #define VpSetPosInf(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_POSITIVE_INFINITE) #define VpSetNegInf(a) ((a)->frac[0]=0,(a)->Prec=1,(a)->sign=VP_SIGN_NEGATIVE_INFINITE) #define VpSetInf(a,s) ( ((s)>0)?VpSetPosInf(a):VpSetNegInf(a) ) +#define VpIsOne(a) ((a->Prec==1)&&(a->frac[0]==1)&&(a->exponent==1)) #ifdef _DEBUG int VpVarCheck(Real * v); +VP_EXPORT int VPrint(FILE *fp,char *cntl_chr,Real *a); #endif /* _DEBUG */ #if defined(__cplusplus) |