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How do I safely pass objects, especially STL objects, to and from a DLL?
...iginal_type get() const
{
original_type result;
result = static_cast<original_type>(*data);
return result;
}
void set_from(const original_type& value)
{
data = reinterpret_cast<safe_type*>(pod_helpers::pod_malloc(sizeof(safe_type))); //note the pod_malloc c...
Why is String.chars() a stream of ints in Java 8?
... know that the IntStream contains char values represented as ints and that casting must be done at the proper place. This is doubly confusing because there are overloaded API calls like PrintStream.print(char) and PrintStream.print(int) that differ markedly in their behavior. An additional point of ...
Why is unsigned integer overflow defined behavior but signed integer overflow isn't?
...and Y, there will exist some other value Z such that X+Z will, if properly cast, equal Y and Y-Z will, if properly cast, equal X). If unsigned values were merely storage-location types and not intermediate-expression types (e.g. if there were no unsigned equivalent of the largest integer type, and ...
How does virtual inheritance solve the “diamond” (multiple inheritance) ambiguity?
...nheritance diagrams to show the derived classes below the bases. (see "downcast", "upcast")
– peterh - Reinstate Monica
Jul 8 '16 at 20:27
...
Generating a UUID in Postgres for Insert statement?
...afichuk @Karsten and @autronix
Also, in modern Postgres, you can simply cast:
SELECT md5(random()::text || clock_timestamp()::text)::uuid
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print call stack in C or C++
...;
int line = -1;
char const* file;
uintptr_t ip2 = reinterpret_cast<uintptr_t>(ip);
Dwfl_Module* module = dwfl_addrmodule(dwfl, ip2);
char const* name = dwfl_module_addrname(module, ip2);
function = name ? demangle(name) : "<unknown>";
if (Dwfl_Line* dwfl_line...
How does type Dynamic work and how to use it?
...g is that even the return type is correct - even though we had to add some casts.
But Scala would not be Scala when there is no way to find a way around such flaws. In our case we can use type classes to avoid the casts:
object DynTypes {
sealed abstract class DynType[A] {
def exec(as: A*): ...
How to unit test abstract classes: extend with stubs?
... Oh no.. another tenet I'm gong to have to rethink! Thanks (both sarcastically for now, and non-sarcastically for once I have assimilated it and feel like a better programmer)
– Martin Lyne
Mar 18 '13 at 10:12
...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
...riority(user,count);
}
</script>
The 'risk' here is that a vote is cast, but the count not updated (haking or script failure). This is why the votes have a unique 'priority' - the script should really start by ensuring that there is no vote with priority higher than the current count, if the...
Ignoring time zones altogether in Rails and PostgreSQL
...as loaded footgun works for me, but only by coincidence. If you explicitly cast a literal to timestamp [without time zone], any time zone offset is ignored! Only the bare timestamp is used. The value is then automatically coerced to timestamptz in the example to match the column type. For this step,...