void run() { ... if (done) return canc开发者_Python百科el(); ... } where cancel() return void. This won\'t compile... and I can almost understand why. But if I want to return a void from a void, why
char *recvmsg(){ char buffer[1024]; return buffer; } int main(){ char *reply = recvmsg(); ..... } I get a warning:
In Objective-C there is a type named SEL. It\'s defined like this: id (*SEL)(id self, SEL _cmd,...); but if we make a method whose return type i开发者_运维知识库s double, the id type is not good to
I\'ve been doing some sax parsing in Java recently. I noticed the initialization for namespace mappings
Sorry for this foolish question, but I\'m quite new to C++. I have a base class called AlertInfoBase in my project. It has some dozens of subclasses. Now I want to have a class template, which will h
Suppose I am designing something like the following interface: public interface MyInterface{ public MyInterface method1();
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, refer开发者_Go百科ences,or expertise, but this question will likely soli
Let´s say I a have an User class and I want to return all the users in my database. For that i have create a method called getAll();
When using generics in the return type, I\'m having trouble extending a parent class like following example.
I need to take a Widget that already has several property values set. I need to change the Widget\'s name.I\'m drawn toward Option 3, but I\'m having a hard time articulating why.
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