aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/libm-ieee754
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/libm-ieee754')
-rw-r--r--sysdeps/libm-ieee754/s_isinf.c8
-rw-r--r--sysdeps/libm-ieee754/s_isinff.c8
-rw-r--r--sysdeps/libm-ieee754/s_isinfl.c8
-rw-r--r--sysdeps/libm-ieee754/s_lround.c24
4 files changed, 18 insertions, 30 deletions
diff --git a/sysdeps/libm-ieee754/s_isinf.c b/sysdeps/libm-ieee754/s_isinf.c
index 6f76ce1..4f063d0 100644
--- a/sysdeps/libm-ieee754/s_isinf.c
+++ b/sysdeps/libm-ieee754/s_isinf.c
@@ -16,12 +16,8 @@ static char rcsid[] = "$NetBSD: s_isinf.c,v 1.3 1995/05/11 23:20:14 jtc Exp $";
#include "math.h"
#include "math_private.h"
-#ifdef __STDC__
- int __isinf(double x)
-#else
- int __isinf(x)
- double x;
-#endif
+int
+__isinf (double x)
{
int32_t hx,lx;
EXTRACT_WORDS(hx,lx,x);
diff --git a/sysdeps/libm-ieee754/s_isinff.c b/sysdeps/libm-ieee754/s_isinff.c
index 18a0b5e..efc0935 100644
--- a/sysdeps/libm-ieee754/s_isinff.c
+++ b/sysdeps/libm-ieee754/s_isinff.c
@@ -15,12 +15,8 @@ static char rcsid[] = "$NetBSD: s_isinff.c,v 1.3 1995/05/11 23:20:21 jtc Exp $";
#include "math.h"
#include "math_private.h"
-#ifdef __STDC__
- int __isinff(float x)
-#else
- int __isinff(x)
- float x;
-#endif
+int
+__isinff (float x)
{
int32_t ix,t;
GET_FLOAT_WORD(ix,x);
diff --git a/sysdeps/libm-ieee754/s_isinfl.c b/sysdeps/libm-ieee754/s_isinfl.c
index b499821..697534e 100644
--- a/sysdeps/libm-ieee754/s_isinfl.c
+++ b/sysdeps/libm-ieee754/s_isinfl.c
@@ -16,12 +16,8 @@ static char rcsid[] = "$NetBSD: $";
#include "math.h"
#include "math_private.h"
-#ifdef __STDC__
- int __isinfl(long double x)
-#else
- int __isinfl(x)
- long double x;
-#endif
+int
+__isinfl (long double x)
{
int32_t se,hx,lx;
GET_LDOUBLE_WORDS(se,hx,lx,x);
diff --git a/sysdeps/libm-ieee754/s_lround.c b/sysdeps/libm-ieee754/s_lround.c
index 0f91280..974dbde 100644
--- a/sysdeps/libm-ieee754/s_lround.c
+++ b/sysdeps/libm-ieee754/s_lround.c
@@ -26,40 +26,40 @@
#ifdef NO_LONG_DOUBLE
/* The `long double' is in fact the IEEE `double' type. */
+/* This code does not presently work. */
+
long int
__lround (long double x)
{
int32_t j0;
u_int32_t i1, i0;
long int result;
+ int sign;
EXTRACT_WORDS (i0, i1, x);
j0 = ((i0 >> 20) & 0x7ff) - 0x3ff;
+ sign = (i0 & 0x80000000) != 0 ? -1 : 1;
+ i0 &= 0xfffff;
if (j0 < 20)
{
if (j0 < 0)
- result = j0 < -1 ? 0 : ((i0 & 0x80000000) ? -1 : 1);
+ result = j0 < -1 ? 0 : sign;
else
{
u_int32_t i = 0xfffff >> j0;
+ i0 |= 0x100000;
if (((i0 & i) | i1) == 0)
- result = (long int) ((i0 & 0xfffff) | 0x100000) >> j0;
+ result = i0 >> j0;
else
- {
- /* X is not integral. */
- u_int32_t j = i0 + (0x80000 >> j0);
- if (j < i0)
- result = (long int) 0x80000 >> (20 - j0);
- else
- result = (j | 0x100000) >> (20 - j0);
- }
+ /* X is not integral. */
+ result = (i0 + (0x80000 >> j0)) >> (20 - j0);
}
}
else if (j0 >= 8 * sizeof (long int) || j0 > 51)
{
/* The number is too large. It is left implementation defined
what happens. */
- result = (long int) x;
+ return (long int) x;
}
else
{
@@ -97,7 +97,7 @@ __lround (long double x)
}
}
- return i0 & 0x80000000 ? -result : result;
+ return sign * result;
}
#else
long int