Xtykutl

I'm trying to run a simple program from command prompt for educational prupose to demonstrate the parameter exchange between a c program and operating system. I got the following output.

I implemented the following code. Please ignore some of the printf outputs. They're written in German. I know I run the program with less parameter. The output should be a hint on program was run with less parameter instead.

#include <stdio.h>

#include <stdlib.h>

#include <string.h>



int main(int argc, char *argv) {

    if(argc < 4)

        printf("Das Programm wurde mit %d anstatt den notwendigen 4 Parametern "

               "gestartet.", argc);

    else {

        int modus      = atoi(argv[1]);



        double niveau  = atof(argv[2]);



        char datei[13];

        size_t strlcpy = strlcpy(datei, argv[3], (int)sizeof(datei) - 1);



        printf("nnMAIN-Parameter");

        printf("n#Parameter:t%d", argc);

        printf("nProgrammname:t%s", argv[0]);

        printf("nModus:t%d", modus);

        printf("nNiveau:t%f", niveau);

        printf("nDatei:t%s", datei);

    }



    return 0;

}

Appreciate your input.

Cheers

Install gcc and some other compiler tools into your cygwin:

C:cygwin64>setup-x86_64.exe -q -P wget -P gcc-g++ -P make -P diffutils -P libmpfr-devel -P libgmp-devel -P libmpc-devel

Open a cygwin terminal. Compile your source:

$ gcc main.c -o main

Run your binary with the arguments:

$ ./main 1 2 date