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Fix NAN code.

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This commit is contained in:
Bruce Momjian 1999-01-03 05:30:47 +00:00
parent 6fd29f2c01
commit 936d89e9e0
1 changed files with 4 additions and 14 deletions
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18
src/backend/utils/adt/numeric.c
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@ -5,7 +5,7 @@
* *
* 1998 Jan Wieck * 1998 Jan Wieck
* *
* $Header: /cvsroot/pgsql/src/backend/utils/adt/numeric.c,v 1.4 1999/01/03 02:40:12 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/utils/adt/numeric.c,v 1.5 1999/01/03 05:30:47 momjian Exp $
* *
* ---------- * ----------
*/ */
@ -16,7 +16,6 @@
#include <ctype.h> #include <ctype.h>
#include <float.h> #include <float.h>
#include <math.h> #include <math.h>
/*#include <nan.h> BSD/OS does not have this */
#include <errno.h> #include <errno.h>
#include <sys/types.h> #include <sys/types.h>
@ -48,6 +47,9 @@
# define MAX(a,b) (((a)>(b)) ? (a) : (b)) # define MAX(a,b) (((a)>(b)) ? (a) : (b))
#endif #endif
#ifndef NAN
#define NAN (0.0/0.0)
#endif
/* ---------- /* ----------
@ -1722,14 +1724,8 @@ numeric_float8(Numeric num)
if (NUMERIC_IS_NAN(num)) if (NUMERIC_IS_NAN(num))
{ {
float64 dummy = 1;
result = (float64)palloc(sizeof(float64data)); result = (float64)palloc(sizeof(float64data));
#ifdef NAN
*result = NAN; *result = NAN;
#else
*result = (dummy-dummy)/(dummy-dummy); /* generate NAN */
#endif
return result; return result;
} }
@ -1778,14 +1774,8 @@ numeric_float4(Numeric num)
if (NUMERIC_IS_NAN(num)) if (NUMERIC_IS_NAN(num))
{ {
float32 dummy = 1;
result = (float32)palloc(sizeof(float32data)); result = (float32)palloc(sizeof(float32data));
#ifdef NAN
*result = NAN; *result = NAN;
#else
*result = (dummy-dummy)/(dummy-dummy); /* generate NAN */
#endif
return result; return result;
} }