09-02-2013
Quote:
Originally Posted by
Don Cragun
I'm confused: Are you briandanielz or are you ajayram_arya? Both of you seem to be answering questions about what is wanted and posting very similar segments of code that you're using to solve parts of the problem.
Shell array sizes in both ksh and bash are limited. Since your input is a "huge file", the shell array limits may be your problem.
What are you going to do with the array after you have processed your "huge file"? Can't you instead process the data from each line in your huge file as you find it without keeping a list of that data from all of the lines you've processed in an array?
I would most likely read the file into a variable file stored in a trap directory. So upon completion or error the data, would be gobbled up.
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floor(3m) floor(3m)
Name
floor, ffloor, fabs, ceil, ceil, trunc, ftrunc, fmod, rint - floor, absolute value, ceiling, truncation, floating point remainder and
round-to-nearest functions
Syntax
#include <math.h>
double floor(x)
double x;
float ffloor(x)
float x;
double ceil(x)
double x;
float fceil(x)
float x;
double trunc(x)
double x;
float ftrunc(x)
float x;
double fabs(x)
double x;
double fmod (x, y)
double x, y;
double rint(x)
double x;
Description
The and routines return the largest integer which is not greater than x for double and float data types, respectively.
The and routines return the smallest integer which is not less than x for double and float data types, respectively.
The and routines return the integer (represented as a floating-point number) of x with the fractional bits truncated for double and float
data types respectively.
The routine returns the absolute value |x|.
The routine returns the floating point remainder of the division of x by y: zero if y is zero or if x/y would overflow; otherwise the num-
ber f with the same sign as x, such that x = iy + f for some integer i, and |f| < |y|.
The routine returns the integer (represented as a double precision number) nearest x in the direction of the prevailing rounding mode.
In the default rounding mode, to nearest, is the integer nearest x with the additional stipulation that if |rint(x)-x|=1/2 then is even.
Other rounding modes can make act like or or round towards zero.
Another way to obtain an integer near x is to declare (in C)
double x; int k; k = x;
The C compiler rounds x towards 0 to get the integer k. Also note that, if x is larger than k can accommodate, the value of k and the
presence or absence of an integer overflow are hard to predict.
The routine is in libc.a rather than libm.a.
See Also
abs(3), ieee(3m), math(3m)
RISC floor(3m)