I am trying to overload the % operator in C++ to make it do division instead of modulo. For example, 5 % 4 should give me 1.25 after overloading. But I get "nan". Why? This is the code I ...

I want to redefine new and delete operators to use a custom allocator in a c++ project with multiple translation units. Here are the redefines written in the memops.hpp file: #pragma once #include &...

[Note: I'm stuck with C++17.] I have a class template that is instantiated over a fairly large number of types (~25). A few of them can correctly be converted among one another, and I would like to ...

According to what I know, the result value of an overloaded operator->() can be any type T provided that T is either a pointer type or it is a class/struct which also exposes an overloaded operator-...

The member arrow operator is treated by the compiler in a special way. Since an overloaded arrow operator can have an arbitrary return type, several such operators from different classes may need to ...

Im trying to define the spaceship operator for a simple template string class. namespace mylib { template <size_t N> struct String { String() { *data = '\...

My program after porting to Visual Studio shows some weird results. After reduction I came to this minimal reproducible example: consteval auto operator +( auto x, auto&& y ) { return x += ...

I am developing quite a large Class whose objects require relatively costly validation if they are created by the public constructors, but for which the validation can be dispensed with for private ...

Compile Silo and get the following error error: no match for ‘operator<<’ (operand types are ‘std::ostringstream’ {aka ‘std::__cxx11::basic_ostringstream<char>’} and ‘std::pair<const ...

I got a function: bool equal(int var, std::initializer_list<int> list) { return std::find(list.begin(), list.end(), var) != list.end(); } which works, I got no error when I use the function....

package test; public class Test { public static void main(String [] args) { int a = 10; int b = 12; System.out.println( ++a == 11 || b++ == 12); ...

In the program below, class A has a convert-to-int operator. Class B has a convert-to-A operator. While the compiler converts A to int implicitly, it fails to do so for converting B to A: class A { ...

In .pxd file, I wrote _Point operator+(const _Point other) const _Point operator -(const _Point other) const bool operator==(const _Point other) const In .pyx file, I wrote def __eq__(...

So I wanted to improve the noexcept of some operators and functions in my code can I mark this function noexcept ? std::string remove_suffix(/*passed by copy*/ std::string s) /*noexcept*/ // is ...

It seems the operator 'in' on tuple won't only match the whole string if there is only one item in the tuple. The behavior is different from 'list' and 'set'. I don't understand where the difference ...