Using Command Line Arguments
During the compilation process, Turbo C turns your C source code first into an .obj form and the links the .obj file to form an .exe file. This .exe file by default is stored in the /tc/bin subdirectory. You can use this .exe file as a stand alone program.
It's possible to pass parameters to your program using the parameters arc and argv in the main function. The following code illustrates the usage.
/* Example showing the use of command line parameters */
#include <iostream.h>
/* the command line variables argc and argv are specified as the
parameter values for the main function.
argc is an int variable that contains the count of command line
arguments. The count in argc always includes the name of the
procedure invoked. The following examples illustrate:
command line argc
------------ ----
stuff 1
stuff c:\temp\a.txt 2
stuff a c d a.txt 5
argv is a pointer to an array that contains the actual command
line arguments. You can access these within your program and
process them. Note that argv[0] contains the name of the invoked
procedure. The following examples illustrate:
command line argv[0] argv[1] argv[2] argv[3]
------------ ------- ------- ------- -------
stuff stuff
stuff a.txt stuff a.txt
stuff a c a.txt stuff a c a.txt
*/
main(int argc, char *argv[]) {
int i;
cout << "You have called " << argv[0] << " with "
<< (argc-1) << " arguments" << endl;
if(argc > 1)
for(i=1; i<argc; i++)
cout << "Argument " << i << ":" << argv[i] << endl;
return 0;
}