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CEC13 Linux C++

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RUAN YY
RUAN YY on 23 Sep 2020
Commented: RUAN YY on 24 Sep 2020
Hey guys! I am new to Linux and currently I am working on evolutionary computation which involves CEC13 benchmark.
I found on the CEC13 website that
For Linux Users:
Please change %xx in fscanf and fprintf and do not use "WINDOWS.H".
But fscanf and fprintf seem to follow the same syntax in Linux C++, what does it refer to ? What should I modify?
The related code is as follows.
#include <WINDOWS.H>
#include <stdio.h>
#include <math.h>
#include <malloc.h>
#include <mex.h>
.....
if (fpt==NULL)
{
printf("\n Error: Cannot open input file for reading \n");
}
.......
for (i=0; i<cf_num*nx*nx; i++)
{
fscanf(fpt,"%Lf",&M[i]);
}
....
Would you please give me some help about how to modify the code? Many thanks!
BTW, if nothing changes, the output is incorrect although it can be complied.

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Accepted Answer

Walter Roberson
Walter Roberson on 24 Sep 2020
For Visual Studio, %Lf stands for "long double" .
long double in Windows is the same as double. long double in gcc is a larger floating point number. This can lead to incompatibilities.
You should probably be using %lf for double instead of long double: it will not make any difference for Visual Studios and it will prevent problems for other compilers.
MATLAB does not support long double.

  1 Comment

RUAN YY
RUAN YY on 24 Sep 2020
thank you so much!!!

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