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Full Discussion: Reading Scientific notation from file and storing in array
Top Forums Programming Reading Scientific notation from file and storing in array Post 302582621 by DreamWarrior on Friday 16th of December 2011 02:45:10 PM
Old 12-16-2011
Maybe it's this:

Code:
 while (fscanf(fptr, "%lf", &fArray[i]) != EOF);

You have a semi colon after the while, so you're reading in every line from the file until EOF, then looping and doing it again (but it's already at EOF). You probably need to rethink how you're approaching this loop....

Code:
int main()
{

    double fArray[36];
    int i=0;
    FILE *fptr;

    fptr = fopen ("C:\\temp.txt", "r");

    if (fptr == NULL)

        printf ("Can't Find File to open\n");

    else
    {
        for (i=0; i <= 36; i++)
            {
            if (fscanf(fptr, "%lf", &fArray[i]) == EOF) break;  /* stop if we ran out of values */
            printf ("%le\n", fArray[i]);  /* use le since you're printing a double not a float */
            }
    }

return 0;
}

This User Gave Thanks to DreamWarrior For This Post:
Corona688
 

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LEARN ABOUT CENTOS

slarnv.f

slarnv.f(3)							      LAPACK							       slarnv.f(3)

NAME

       slarnv.f -

SYNOPSIS

   Functions/Subroutines
       subroutine slarnv (IDIST, ISEED, N, X)
	   SLARNV returns a vector of random numbers from a uniform or normal distribution.

Function/Subroutine Documentation
   subroutine slarnv (integerIDIST, integer, dimension( 4 )ISEED, integerN, real, dimension( * )X)
       SLARNV returns a vector of random numbers from a uniform or normal distribution.

       Purpose:

	    SLARNV returns a vector of n random real numbers from a uniform or
	    normal distribution.

       Parameters:
	   IDIST

		     IDIST is INTEGER
		     Specifies the distribution of the random numbers:
		     = 1:  uniform (0,1)
		     = 2:  uniform (-1,1)
		     = 3:  normal (0,1)

	   ISEED

		     ISEED is INTEGER array, dimension (4)
		     On entry, the seed of the random number generator; the array
		     elements must be between 0 and 4095, and ISEED(4) must be
		     odd.
		     On exit, the seed is updated.

	   N

		     N is INTEGER
		     The number of random numbers to be generated.

	   X

		     X is REAL array, dimension (N)
		     The generated random numbers.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   September 2012

       Further Details:

	     This routine calls the auxiliary routine SLARUV to generate random
	     real numbers from a uniform (0,1) distribution, in batches of up to
	     128 using vectorisable code. The Box-Muller method is used to
	     transform numbers from a uniform to a normal distribution.

       Definition at line 98 of file slarnv.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2							  Tue Sep 25 2012						       slarnv.f(3)
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