dev-cpp-users

RE: [Dev-C++] Using Command Line to Execute program

[<Ech...@ne...>]

I assume you mean to compile it, and that the program is in a file called harmonic.c

Since dev-cpp uses gcc as it's compiler, I think you would youise the following command, from the file's directory:

gcc harmonic.c -o harmonic.exe

however, since it is a windows compiler, it might need other options? :-)

---- message follows ----

Please show me step-by-step how to use DevC++ to run a program through 
Command Line method fpr the following program. Thank you!!!!!!!!!!!!!!


#include  <iostream.h>
#include  <stdlib.h>
#include <stdio.h>
               
//----------------------------------------------------------------------------

----
// array passed as pointer

float  sum_array( float *A, int len )
{
   float s = 0;
   for( int i = 0; i < len; ++i )
   s += A[i];
   return s;
}

// array passed as array of unspecified length

float  average_array( float A[], int len )
{
   return  sum_array( A, len )/len;
}

//----------------------------------------------------------------------------

----
void  main( int argc, char **argv )
{
   if( argc != 1 )
   {
       cerr << "Usage: " << argv[0] << " number" << endl;
       cerr <<"int argc: "<<argc;
       getchar();
       exit(0);
   }

   int  n = atoi( argv[1] );
   
   float  H[n];
   
   for( int i = 1; i <= n; ++i )
   H[i-1] = 1/float(i);
   
   cout << "harmonic number " << n << ":   " << sum_array( H, n ) << endl;
   cout << "average 1/i up to " << n << ": " << average_array( H, n ) << 
endl;
   
   exit(0);
}

//--------------------------------
------------------------------------------------





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RE: [Dev-C++] Using Command Line to Execute program

[Luigi S. <gi...@li...>]

Hi,
I would name the program "harmonic.cpp", rather than "harmonic.c", because 
it contains some instructions that are not part of C, like the ones used 
for printing.

To compile and link, I would try the following command:
"path\bin\g++ -Ipath\include -Ipath\include\g++ -o harmonic.o harmonic.cpp"

In the above you should replace "path" with the path where you have 
installed Dev-C++, for example if Dev-C++ is in "c:\programs\devcpp", then 
your command should be:
"c:\programs\devcpp\bin\g++ -Ic:\programs\devcpp\include
-Ic:\programs\devcpp\include\g++ -o harmonic.exe harmonic.c"

Of course you should issue the command from within a DOS box and being in 
the directory which contains the file "harmonic.cpp".

If the above does not work let me know, also if you wish to carry out the 
above task with some shorter command also let me know, I have a couple of 
programs that can help doing so.

At 16.41 15/11/01 -0500, Evan Hempel wrote about Cuong2001's post:
>I assume you mean to compile it, and that the program is in a file called 
>harmonic.c
>
>Since dev-cpp uses gcc as it's compiler, I think you would youise the 
>following command, from the file's directory:
>
>gcc harmonic.c -o harmonic.exe
>
>however, since it is a windows compiler, it might need other options? :-)

--
gisan
gi...@li...