Can one of you C guru's help me please???

[jdechiricio]

Hello,

I am a new to this board and came here out of desparation....

I need to modifiy a C program to allow the workareas (there could be up to 30) it uses to be defined externally and passed to the C program, also I need to pass the lengths of the work areas.

I have exhausted my limited knowledge of C is there any of you folks that can provide some assistance.

I will tell you right now, i am one of those old dinosaurs that still writes programs in machine language and I guess C is just to modern for me to understand.

Thanks for any help provided.

[Banfa]

ok the entry point of a C program is

int main( int argc, char **argp )
{
   /* Program code here */
}
 

argc gives the number of command line arguments and argp is an array of pointers to these arguments, note that the prgram name is always in the first one of these.

By processing the data in argc and argp you can pass data into a program at run time, so you can pass the sizes of your workareas on the command line, i.e.

MyProgram 1024 1024 2048 4096

This in main will result with

argc=5
argp[0]="MyProgram"
argp[1]="1024"
argp[2]="1024"
argp[3]="2048"
argp[4]="4096"

you can use strtoul to convert the strings to there binary values.

[jdechiricio]

Banfa,

Thanks.. thats a good start.