C compiler dependent error

Question

https://code.sololearn.com/cKTRTpkYeVYY/#c

this code runs fine on online compilers like gdb, but crashes on VS or Tcc compiler for VS Code.
The error seems to be line 59. But its just a simple printf. So maybe its the function add_planet or add_mond. Can' t find it...

Answer 1

What is line 58 supposed to do?

printf("%*c", strlen(anchor[i]->name), ' ');

strlen is of type size_t, the format specifier is %zu (I think), but you're using one format specifier %*c with two arguments, suppressing the first char of what is a size_t and adding a space? Not saying that what you're doing is wrong, I just don't get it.

Answer 2

@Anna
try this out:
////////////////////////////////
int i = 5;
printf("%*s", i, " "); // same as ("%*c", i, ' ');
printf("Hi!\n");
////////////////////////////////

In my code I want to make sure that the moons are listed under the planet km.
so i use strlen(anchor[i]->name) to get the lenght of the planet name.
Go to https://www.onlinegdb.com/ compiler and try my code out.

this is also a good method for loops, try this:

#include <stdio.h>

int main()
{
int i = 0;
int lenght = 5;
for ( i = 1; i <= lenght; i++) {
printf("%*s\n", i, "*");
}
return 0;
}

Answer 3

@Gordie
Thank you, instant fix it with this line:
for(int j = 0; j < MAX_MONDE; j++) {
anchor[i]->monde[j] = NULL;
}
I have to set them to zero, because the structs are predetermined in the exercise.

Answer 4

@Gordie How can i fix this?

Answer 5

Can you show me, how the direct way?