Usage of ArgStr and ArgInt

Say your signal processing program, sigproc.exe,  will have 4 arguments/variables:

C variable          cmd switch       default if no switch
~~~~~~~~~~          ~~~~~~~~~~       ~~~~~~~~~~~~~~~~~~~~
char* input_file       -i             temp.wav
char* output_file      -o             temp.dat
int fft_size           -fft           64
int window_type        -wt            1

So, for example, the command line would look like:

   sigproc -i fox.wav -o fox.dat -fft 128 -wt 2

And if any of the switches are missing, the default will be used.

~~~ THEREFORE, AN EXAMPLE: ~~~
 
 

int main(int argc, char * argv[])
{
//        variable           switch    default
//        ^^^^^^^^           ^^^^^^    ^^^^^^^
    char* input_file  =ArgStr("-i",   "temp.wav", argc, argv);
    char* output_file =ArgStr("-o",   "temp.dat", argc, argv);
    int   fft_size    =ArgInt("-fft",  64 ,      argc, argv);
    int   window_type =ArgInt("-wt",    1,       argc, argv);

//  So, after this phase, all the variables should be set to either
//  the default or the command line argument if one is available.

//  Be careful with the char* return values. You have to allocate temp
//  strings of you want to catenate to them.

}

 
 

Easy, NO?

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