When i compile this programm it puts radon text in the console-CodePudding

When i compile and run it tons of random letters appear in it closes

#include <stdio.h>

int main(int argc, int* argv[])
{


    int x;
    for(x = 0; x < argc; x  )
    {
    while(*argv[x])
        {
        putchar(*argv[x]);
        *argv[x]  ;
        }
    putchar('\n');
    }
    return 0;

}

This Programm should take the input from the comand line and print it(i wanted it in this format to test why and how *argv[] works)

CodePudding user response：

You may consider checking for errors.

#include <stdio.h>

int main(int argc, char *argv[])
{
    // Exit status if the argument count is incorrect
    if (argc != 2)
    {
        printf("Usage: ./program string\n");
        return 1;
    }

Also you may want to print the string without writing a loop using printf() fucntion.

// Print the whole string in one step
printf("%s\n", argv[1]);
return 0;
}

CodePudding user response：

Problem is in the third line:

int main(int argc, int* argv[])

It should be char *agrv[], not int *argv[]. Writing int *argv[] is wrong as int is of four bytes and char is of only one

Writing this instead should fix the issue:

int main(int argc, char* argv[])