Category "null-pointer"

Why does it iterate one more time even if it is NULL?

Similar question here . What I want to understand is that when current_node is NULL, the compiler doesn't see it as NULL and iterates one more time. void pr

Can you test for nullpointers in Fortran?

I'm trying to learn Fortran2018 using gfortran. When playing around with pointers I noticed that there doesn't seem to be a facility to test for nullpointers. S

Can't find @Nullable inside javax.annotation.*

I want use @Nullable annotation to eliminate NullPointerExceptions. I found some tutorials on the net, I noticed that this annotation comes from the package j

Creating a file using fopen()

I am just creating a basic file handling program. the code is this: #include <stdio.h> int main() { FILE *p; p=fopen("D:\\TENLINES.TXT","r"); if(p==0) {

visual studio unallocted pointer not NULL

I've encounter an issue in Visual Studio which drives me crazy. It is regarding unallocated pointers. I wanted to write a simple linked list app.The problem is