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Full Discussion: problem with AWK and floats below 0
Top Forums Shell Programming and Scripting problem with AWK and floats below 0 Post 302298282 by JCastro on Tuesday 17th of March 2009 06:51:57 AM
Old 03-17-2009
problem with AWK and floats below 0
Hello. I have a problem with AWK and floats below 0 in a script.
It may be simplified to this line (please, take into account that my "locale" is Spanish, so the system will read "," as decimal separator):

Code:
echo -1,25 2,55745 0,33 ,278 | awk '{print $1+1, $2+1, $3+1, $4+1}'

... getting:
Code:
-0,25 3,55745 1 1

So, what about the third and fourth fields? Why do you think AWK is not reading correctly?

I have tried different options (also with printf options), but I am always at the same point: if the number is 0,xxx AWK will not read the decimal part.
Thank you very much in advance,
 

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LEARN ABOUT MOJAVE

remquof

REMQUO(3)						   BSD Library Functions Manual 						 REMQUO(3)

NAME

     remquo -- floating-point remainder and quotient function

SYNOPSIS

     #include <math.h>

     double
     remquo(double x, double y, int *quo);

     long double
     remquol(long double x, long double y, int *quo);

     float
     remquof(float x, float y, int *quo);

DESCRIPTION

     The remquo() 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.  This is the same value that
     is returned by the remainder() function.  remquo() also calculates the lower seven bits of the integral quotient x/y, and gives that value
     the same sign as x/y. It stores this signed value in the object pointed to by quo.

SPECIAL VALUES

     remquo(x, y, quo) returns a NaN and raises the "invalid" floating-point exception if x is infinite or y is 0.

VECTOR OPERATIONS

     If you need to apply the remquo() function to SIMD vectors or arrays, using the following functions provided by the Accelerate.framework may
     give significantly better performance:

     #include <Accelerate/Accelerate.h>

     vFloat vremquo(vFloat x, vFloat y, vUInt32 *q);

SEE ALSO

     math(3), remainder(3)

STANDARDS

     The remquo() functions conform to ISO/IEC 9899:2011.

BSD
								 December 11, 2006							       BSD
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