Why strcpy_s is safer than strcpy?

Question

When I am trying to use the strcpy function the visual studio gives me an error

error C4996: \'strcpy\': This function or variable may be unsafe. Co         


        

Answer 1

The header definiton for C is:

errno_t strcpy_s(char *dest,rsize_t dest_size,const char *src)

The invocation for your example should be:

#include 

char a[50] = "void";
char b[3];
strcpy_s(b, sizeof(b), a);
printf("String = %s", b);