大约有 4,041 项符合查询结果（耗时：0.0281秒） [XML]
Should I use #define, enum or const?
In a C++ project I'm working on, I have a flag kind of value which can have four values. Those four flags can be combined. Flags describe the records in database and can be:
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Guaranteed lifetime of temporary in C++?
Does C++ provide a guarantee for the lifetime of a temporary variable that is created within a function call but not used as a parameter? Here's an example class:
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Is #pragma once a safe include guard?
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Should make it into C++20.
– Ionoclast Brigham
Sep 2 '17 at 4:22
1
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Can I call a base class's virtual function if I'm overriding it?
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The C++ syntax is like this:
class Bar : public Foo {
// ...
void printStuff() {
Foo::printStuff(); // calls base class' function
}
};
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Immutable vs Mutable types
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The key difference between Python's semantics and C++ pass-by-reference semantics is that assignment is not mutation in Python, and it is in C++. (But of course that's complicated by the fact that augmented assignment, like a += b sometimes is mutation. And the fact that ass...
Operator overloading in Java
...for floating point, which can be a bit of a surprise for those with a C or C++ background.
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Joins are for lazy people?
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Yes, You should.
And you should use C++ instead of C# because of performance. C# is for lazy people.
No, no, no. You should use C instead of C++ because of performance. C++ is for lazy people.
No, no, no. You should use assembly instead of C because of perfor...
Unexpected results when working with very big integers on interpreted languages
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MSVC++ is a C++ compiler, and C++ got long long in the C++11 standard. It's been a MSVC++ and g++ extension for a few years, though.
– MSalters
Aug 5 '13 at 10:11
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ImportError: Cannot import name X
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@jsells Since you have worked with C++ "for a long time", you should know that two classes should NEVER be dependant on each other. This is extremely important in C++, and even if it's not the #1 thing in Python, it's still a really good idea to follow this ru...
Do try/catch blocks hurt performance when exceptions are not thrown?
...ll here,
by which I mean the static cost can be
much lower than say in C++. Why is
this? Well, static cost is really
incurred in two kinds of places:
First, the actual sites of
try/finally/catch/throw where there's
code for those constructs. Second, in
unmanged code, there's the st...