D has many memory safety features. For local variables, one should use pointers, otherwise ref does references that are guaranteed to be valid to their lifetime, and thus have said limitations.
For local variables, one should use pointers, otherwise ref does references that are guaranteed to be valid to their lifetime, and thus have said limitations.
Should I take this to mean that pointers instead are not guaranteed to be valid, and thus are not memory safe?
Pointers are not guaranteed to be safe. DIP1000 was supposed to solve the issue of a pointer referencing to a now expired variable (see example below), but it’s being replaced by something else instead.
int* p;
{
int q = 42;
p = &q;
}
writeln(*p); //ERROR: This will cause memory leakage, due to q no longer existing
D has many memory safety features. For local variables, one should use pointers, otherwise
ref
does references that are guaranteed to be valid to their lifetime, and thus have said limitations.Should I take this to mean that pointers instead are not guaranteed to be valid, and thus are not memory safe?
Pointers are not guaranteed to be safe. DIP1000 was supposed to solve the issue of a pointer referencing to a now expired variable (see example below), but it’s being replaced by something else instead.
int* p; { int q = 42; p = &q; } writeln(*p); //ERROR: This will cause memory leakage, due to q no longer existing
So I guess they are forbidden in
@safe
mode?Do you know what is the replacement? I tried looking up DIP1000 but it only says “superceded” without mentioning by what.
This makes me wonder how ready D is for someone that wants to extensively use
@safe
though.https://github.com/ZILtoid1991/newxml/tree/main
This XML parser of mine uses safe by default.
It also seems to require a GC though…