Using IMSL C Libraries

[amitsoni.1984@gmail.com]

Hi,

I wanted to solve some linear programming problems and I was trying to
use IMSL C libraries. But I couldn't get how to use it. I don't know
where to write the codes and how to execute them.

Do I need to install some other softwares for using it?

Thank you,
Amit

[CBFalconer]

Re: Using IMSL C Libraries

"amitsoni.1984@ gmail.com" wrote:

>
I wanted to solve some linear programming problems and I was
trying to use IMSL C libraries. But I couldn't get how to use it.
I downloaded and installed it but I couldn't figure out where to
write the codes and how to execute them.
>
Do I need to install some other softwares for using it.

Off topic on c.l.c. Follow-ups set.

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-- Francis Crick, co-discover of DNA
"There is nothing more amazing than stupidity in action."
-- Thomas Matthews

--
<http://www.cs.auckland .ac.nz/~pgut001/pubs/vista_cost.txt>
<http://www.securityfoc us.com/columnists/423>

"A man who is right every time is not likely to do very much."
-- Francis Crick, co-discover of DNA
"There is nothing more amazing than stupidity in action."
-- Thomas Matthews

[Malcolm McLean]

Re: Using IMSL C Libraries


<amitsoni.1984@ gmail.comwrote in message

>
I wanted to solve some linear programming problems and I was trying to
use IMSL C libraries. But I couldn't get how to use it. I don't know
where to write the codes and how to execute them.
>
Do I need to install some other softwares for using it?
>

To use a third-party library you need a C compiler and either a version of
that library compatible with your cvompiler you are using, or source code to
the librasry written in portable ANSI C.
Though there is nothing difficult conceptually, in practise it is quite
difficult to set up a compiler to link, and you might want to ask for
technical support.

Basically the compiler has paths it searches for headers (.h files) and
these need to be set so that the headers that come with your library are on
the path. Then it has paths it searches for links. Most compilers do not,
however, link everything on their path by default. Usually you need to
invoke the compiler explicitly with a link flag to link your library.

Once you have done that, it is simply

#include <mylibrary.h>

int main(void)
{
library_functio n();
return 0;
}

If the library comes in source code, you have to compile it to a library
file. This only needs doing once and again uses special compiler switches.

Then you have to use the functions correctly, of course. They should be
documented.

[mecej4]

Re: Using IMSL C Libraries

amitsoni.1984@g mail.com wrote:

Hi,
>
I wanted to solve some linear programming problems and I was trying to
use IMSL C libraries. But I couldn't get how to use it. I don't know
where to write the codes and how to execute them.
>
Do I need to install some other softwares for using it?
>
Thank you,
Amit
>

A prerequisite to using the IMSL libraries is an understanding of what
object code libraries are and how to use them on the computer/OS that
you are on.

For example, if you have MS-C (any version will do), and IMSL CNL-5.5,
open a command window, set the environmental variables for the C
compiler (by running VCVARS.BAT), set the environmental variables for
CNL (by running CNLENV.BAT), and check that LM_LICENSE_FILE points to a
valid license file.

To compile the quadrature example on p.259 of the IMSL manual
Cmath_V1.pdf, put the code into a file, say qua.c, and:

s:\cimslcl qua.c %LINK_CNL%
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14.00.50727.762
for 80x86
Copyright (C) Microsoft Corporation. All rights reserved.

qua.c
Microsoft (R) Incremental Linker Version 8.00.50727.762
Copyright (C) Microsoft Corporation. All rights reserved.

/out:qua.exe
qua.obj
cmath.lib
cstat.lib
kernel32.lib
user32.lib
netapi32.lib
advapi32.lib
gdi32.lib
comdlg32.lib
comctl32.lib

S:\cimsl>qua
integral = -0.128
exact = -0.128

S:\cimsl>

-- mecej4