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Many thanks, to both of you.
I understand.

Thank you for your help

char *quote = "Live long and prosper";
char expression[] = "Illogical";

quote = expression;


Initially quote pointed to read-only memory. When I reassigned the quote to point to expression,...

Appreciate your prompt response.
Allow me to explain further then, since I think I did not give you enough to clarify my concerns.


#include <stdio.h>
#include <stdlib.h>

int main (void )
{...

If I have


char **array = malloc (sizeof *array);
What have I created? What's array pointing to?


If I write

size_t row; /* defined before calling malloc */