database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-12 05:01:15 +03:00
Code Activity

Move all the isinf() stuff from float.c to isinf.c, and build it according to

Browse Source 
configure vs port specific #ifdef's...
This commit is contained in:
Marc G. Fournier
1998-02-02 00:04:08 +00:00
parent 79f99a3888
commit e6e364088a
6 changed files with 181 additions and 186 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
src/backend/port/isinf.c
View File

@@ -1,15 +1,63 @@
/* $Id: isinf.c,v 1.1 1998/01/15 20:54:37 scrappy Exp $ */
/* $Id: isinf.c,v 1.2 1998/02/02 00:03:46 scrappy Exp $ */
#include <ieeefp.h>
#include <math.h>
#include "config.h"
#if HAVE_FPCLASS
# if HAVE_IEEEFP_H
# include <ieeefp.h>
# endif
int
isinf(double d)
{
fpclass_t type = fpclass(d);
switch (type)
{
case FP_SNAN:
case FP_QNAN:
case FP_NINF:
case FP_PINF:
return (1);
default:
break;
}
return (0);
}
#endif
#if defined(HAVE_FP_CLASS) || defined(HAVE_FP_CLASS_D)
# if HAVE_FP_CLASS_H
# include <fp_class.h>
# endif
int
isinf(x)
double x;
{
#if HAVE_FP_CLASS
int fpclass = fp_class(x);
#else
int fpclass = fp_class_d(x);
#endif
if (fpclass == FP_POS_INF)
return (1);
if (fpclass == FP_NEG_INF)
return (-1);
return (0);
}
#endif
#if defined(HAVE_CLASS)
int
isinf(double x)
{
if((fpclass(x) == FP_PINF) || (fpclass(x) == FP_NINF)) return 1;
else return 0;
}
int fpclass = class(x);
if (fpclass == FP_PLUS_INF)
return (1);
if (fpclass == FP_MINUS_INF)
return (-1);
return (0);
}
#endif