On 06/26/2012 09:29 PM, Artur Skawina wrote:
On 06/26/12 20:21, Walter Bright wrote:
On 6/26/2012 3:53 AM, Jacob Carlborg wrote:
replace arbitrary methods and classes, even in the standard library. In D you
can overwrite an arbitrary piece of memory.
Not when using safe code, you can't.
void poke(T)(size_t addr, T val) @safe pure {
T* ptr;
ptr[addr/T.sizeof] = val;
}
int i = 42;
void main() @safe {
writeln(i);
auto whatever = cast(size_t)&i;
poke(whatever, 666);
writeln(i);
poke(0, 0);
}
void writeln(A...)(A a) @trusted { import std.stdio; writeln(a); }
artur
This is not legal D code. (pointer indexing is unsafe)
