FEGETROUND(3) BSD Library Functions Manual FEGETROUND(3)NAME
fegetround, fesetround -- functions providing access to the floating-point rounding mode.
SYNOPSIS
#include <fenv.h>
#pragma STDC FENV_ACCESS ON
int
fegetround(void);
int
fesetround(int round);
DESCRIPTION
These functions provide control of floating-point rounding direction modes.
The fegetround() function gets the current rounding direction. It returns the value of the rounding direction macro representing the current
rounding direction, or a negative value if either there is no corresponding macro or if the rounding direction is not determinable.
The fesetround() function sets the rounding direction to be that specified by the argument round. If the argument is not equal to the value
of one of the rounding direction macros, the rounding direction is not changed. It returns zero if and only if the requested rounding direc-
tion was established.
SEE ALSO fenv(3), feclearexcept(3), fegetenv(3), fegetexceptflag(3), feholdexcept(3), fesetenv(3), feraiseexcept(3), fesetexceptflag(3),
feraiseexcept(3), feupdateenv(3)STANDARDS
These functions conform to ISO/IEC 9899:TC3.
BSD May 9, 2011 BSD
Check Out this Related Man Page
fegetround(3M) Mathematical Library Functions fegetround(3M)NAME
fegetround, fesetround - get and set current rounding direction
SYNOPSIS
c99 [ flag... ] file... -lm [ library... ]
#include <fenv.h>
int fegetround(void);
int fesetround(int round);
DESCRIPTION
The fegetround function gets the current rounding direction.
The fesetround function establishes the rounding direction represented by its argument round. If the argument is not equal to the value of
a rounding direction macro, the rounding direction is not changed.
RETURN VALUES
The fegetround function returns the value of the rounding direction macro representing the current rounding direction, or a negative value
if there is no such rounding direction macro or the current rounding direction is not determinable.
The fesetround function returns a 0 value if and only if the requested rounding direction was established.
ERRORS
No errors are defined.
EXAMPLES
The following example saves, sets, and restores the rounding direction, reporting an error and aborting if setting the rounding direction
fails:
Example 1 Save, set, and restore the rounding direction.
#include <fenv.h>
#include <assert.h>
void f(int round_dir)
{
#pragma STDC FENV_ACCESS ON
int save_round;
int setround_ok;
save_round = fegetround();
setround_ok = fesetround(round_dir);
assert(setround_ok == 0);
/* ... */
fesetround(save_round);
/* ... */
}
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
SEE ALSO fenv.h(3HEAD), attributes(5), standards(5)SunOS 5.11 12 Jul 2006 fegetround(3M)
Hello,
One of the customers I suppport has a interesting problem I've never seen. I've searched the forums and found nothing relevant, so I'm hoping somebody can point me in the right direction.
He is running Redhat Enterprise Linux 3 on a Dell PC. He also uses Sun workstations. He has a... (1 Reply)
I've been googling for the following for the past few weeks several times, but haven't yet come across something that I could easily grasp. Can someone point me in the right direction please?
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Hi,
How can I get this to work?
#!/bin/ksh
if ; then
direction=">>"
else
direction=">"
fi
cat some_file_name $direction temp.txt
exit
This shell script is not happy with using "$direction" opposed to ">" or ">>".
Thanks. (5 Replies)
Hello,
i have some variables say:
x=1.4
y=3.7
I wish to round off these values to :
x = 2 (after rounding off)
y = 4 (after rounding off)
I am stuck.
Please help. (7 Replies)
Hi Experts,
I have a command that gives me the output as below
root@ckpgpay11core> cat sara | awk '{ sum += $1} ; END { print sum }' | awk {'print $1/90'}
8.88889
how do i remove the decimal spaces so that the figure will round itself to 9?
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HI,
I have been racking my brain for a while on this..... was hoping one of the guru's could point me in the right direction....
Basically I have the following data in a file :
----
2009-01-01 10665 Begin 02:25:23
2009-01-02 10665 Begin 20:54:11
2009-01-03 10665 Begin 05:31:17... (4 Replies)
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I am trying to find were to look for definitions of these variables; $0, $1, $2, $#, $$ , $*. I am not having much luck with my searching. Can anyone point me in the right direction?
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I'm trying to find the text that occurs for both numbers not just one, I'm sure there's an easy way to do this but I can't see it. Can someone point me in the right direction? Not just give me an answer without explanation --> I want to learn.
myText file:
xyc 1
xyd 1
xye 1
xyf 1
xyf 1
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Hello,
I am using bash shell on Linux OS, May i please know why is it rounding for big numbers but not for others, is there a workaround to print it as it is with out round off?
printf '%'\''.2f\n' 9999999999999999999.99
10,000,000,000,000,000,000.00
printf '%'\''.2f\n' 99999999999999.99... (1 Reply)