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std::shared_ptr thread safety explained
...l A(1). This can be seen clearly in the following short example.
#include <memory>
#include <iostream>
using namespace std;
struct A
{
int a;
A(int a) : a(a) {}
};
int main(int argc, char **argv)
{
shared_ptr<A> a(new A(1));
shared_ptr<A> b(a), c(a), d(a);
cout &...
How to convert SecureString to System.String?
...tr = Marshal.SecureStringToGlobalAllocUnicode(value);
for (int i=0; i < value.Length; i++) {
short unicodeChar = Marshal.ReadInt16(valuePtr, i*2);
// handle unicodeChar
}
} finally {
Marshal.ZeroFreeGlobalAllocUnicode(valuePtr);
}
}
...
embedding image in html email
I'm trying to send a multipart/related html email with embedded gif images. This email is generated using Oracle PL/SQL. My attempts have failed, with the image showing up as a red X (in Outlook 2007 and yahoo mail)
...
Inject service in app.config
... $.ajax({
url: cacheBuster('/customers'), //server script to process data
type: 'POST',
//Ajax events
// Form data
data: formData,
//Options to tell JQuery not to process data ...
Retrieving the inherited attribute names/values using Java Reflection
...mple recursive method called on Class.getSuperClass():
public static List<Field> getAllFields(List<Field> fields, Class<?> type) {
fields.addAll(Arrays.asList(type.getDeclaredFields()));
if (type.getSuperclass() != null) {
getAllFields(fields, type.getSuperclass()...
Configure Microsoft.AspNet.Identity to allow email address as username
...wn UserValidator on the UserManager, or just by turning it off on the default implementation:
UserManager.UserValidator = new UserValidator<TUser>(UserManager) { AllowOnlyAlphanumericUserNames = false }
share
...
How can I make a WPF combo box have the width of its widest element in XAML?
...er:
Creating a hidden control (Alan Hunford's answer)
Changing the ControlTemplate drastically. Even in this case, a hidden version of an ItemsPresenter may need to be created.
The reason for this is that the default ComboBox ControlTemplates that I've come across (Aero, Luna, etc.) all nest th...
Serialize Class containing Dictionary member
...
There is a solution at Paul Welter's Weblog - XML Serializable Generic Dictionary
For some reason, the generic Dictionary in .net 2.0 is not XML serializable. The following code snippet is a xml serializable generic dictionary. The dictionary is se...
How to make my custom type to work with “range-based for loops”?
...g over a null-terminated char* buffer.
struct null_sentinal_t {
template<class Rhs,
std::enable_if_t<!std::is_same<Rhs, null_sentinal_t>{},int> =0
>
friend bool operator==(Rhs const& ptr, null_sentinal_t) {
return !*ptr;
}
template<class Rhs,
std::enabl...
Null check in an enhanced for loop
...od which returned an empty sequence if you passed in null:
public static <T> Iterable<T> emptyIfNull(Iterable<T> iterable) {
return iterable == null ? Collections.<T>emptyList() : iterable;
}
Then use:
for (Object object : emptyIfNull(someList)) {
}
I don't think I'...