How do I check if the argument passed to a script is an integer?
I am writting a script that will take to integers and want to be able to check before I go on.
I am using bourne shell.
Thanks in advance (13 Replies)
hi, im trying to compare two variables in csh to put in an if statement, eg:
set a = $firstnum
set b = $secondnum
if ($a -ge $b) echo $a
But I get an error ("if: Expression syntax"). How can I make csh see my variables as integers?
thanks in advance! (5 Replies)
I'm trying to write an integer to a file using the write() function, but write() requires the parameter to be written to be a const void*.
How would I go about doing this?
also: using itoa() produces a " warning: implicit declaration of function 'itoa' " even though i have #included stdlib.h (2 Replies)
I have a file with the following:
87565
82155
102656
151
162
I want to write korn shell script that will read each line in a loop and remove any number that has less than 5 digits, e.g., 151 and 152.
thank you,
Keoki:confused: (4 Replies)
I would like to add 4.7 and 1.2. However I am unable to do this with expr.
Any simple ideas (even using something other than expr)?
Example:
me> expr 4 + 1
5
me> expr 4.7 + 1.2
expr: 0402-046 A specified operator requires numeric parameters. (18 Replies)
I am using gawk in a dos shell in windows xp and want to read a datafile and reformat it.
The datafile consists of columns of integers, floating point numbers and text strings. Each column is a fixed width and each column contains the same data type, eg all integers, all text.
I am looking for a... (0 Replies)
Wonderful evening to all of you!
My problem has to possible starting points.
Well, not really, but getting to either one is no problem at all.
So i got either a string in the format of "1920x1080" or simply the integers X = 1920 and Y = 1080.
When I am done, I would like to have an output... (5 Replies)
Hy friends, I am newbie to bash scripting, can anyone explain how b=${a/23/BB} # Substitute "BB" for "23". this line converts "b" into string and and "d" into Integer. Thanks in advance (4 Replies)
Hi,
I'm totally new at this, so help will be appreciated.
I have a directory with a bunch of files in it. The files are named xinteger_yinteger_zinteger.vtk (eg, x3_y0_z-1.vtk). I want to read the filenames and then assign the integers to variables that I then can use in expressions. So, for... (6 Replies)
Hi,
I can't figure out what I'm missing. I'm running a query to see if there are any streams recording on my DVR before starting a scripted update. I'm guessing that it is viewing $VIDEO as a string instead of an int. I've tried everything I saw on google but it still comes back as $VIDEO is... (8 Replies)
Discussion started by: Rhysers
8 Replies
LEARN ABOUT OSX
remainderf
REMAINDER(3) BSD Library Functions Manual REMAINDER(3)NAME
remainder -- floating-point remainder function
SYNOPSIS
#include <math.h>
double
remainder(double x, double y);
long double
remainderl(long double x, long double y);
float
remainderf(float x, float y);
DESCRIPTION
The remainder() functions compute the value r such that r = x - n*y, where n is the integer nearest the exact value of x/y.
If there are two integers closest to x/y, n shall be the even one. If r is zero, it is given the same sign as x.
SPECIAL VALUES
remainder(x, y) returns a NaN and raises the "invalid" floating-point exception if x is infinite or y is 0.
NOTE
The drem() function is deprecated. Please use the C99 function remainder() instead.
VECTOR OPERATIONS
If you need to apply the remainder() functions to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework
may give significantly better performance:
#include <Accelerate/Accelerate.h>
vFloat vremainderf(vFloat x, vFloat y);
void vvremainderf(float *z, const float *y, const float *x, const int *n);
void vvremainder(double *z, const double *y, const double *x, const int *n);
SEE ALSO math(3)STANDARDS
The remainder() functions conform to ISO/IEC 9899:2011.
BSD July 02, 2008 BSD