Mapping a non-const integral to a type Marcos 5 173
I'm having a bit of a problem with the mapping a non-const integral to a type. The code below shows my predicament: #include typedef enum { ...

Specializing std::hash<> Chris 1 255
I want to provide a hashing functor for a class I am writing so that it can be a key in an unordered associative container. Let us call the clas...

mix placement new with a standard delete Mike 2 165
Is it legal to mix placement new with a standard delete operation? I'm curious about the following test case: #include #include #include ...

question: what to do about warning initialising std::ofstream private data member marlow.andrew400 6 193
I am trying to get rid of various GCC warnings when strict checking is turned on. One of these warnings is where it expects the programmer to init...

"Default Constructors" for built-in types (in templates and elsewhere) - standard? ScottM 2 173
In a template that varies on typename T, I sometimes want a function parameter that has a default of T(): template void foo(const T& t = T()) {...

Question about order in Header file MBALOVER 3 169
Dear all: In C++ I have the following problem. I define a class CA and a struct B as follows struct MyStruct { CA::TestEnum testEnum; ...

vector of struct doesn't save values faaamemar 1 188
Hi there :) I've defined a vector of struct in my header file : struct cluster_member { int chnum; vector members; }; protected: i...

static_assert and a single-argument template object PGK 0 153
Hi there, I was looking for a way to ensure a function like test: template void test(T1 a, T2 b) {} would only permit T1 and T2 args either ...

Available C++ Libraries FAQ nikki 0 156
Available C++ Libraries FAQ URL: http://www.trumphurst.com/cpplibs/ This is a searchable list of libraries and utilities (both free and commerc...

Inherited destructor behavior clarification Kevin 6 167
Hi, I would like to ask whether that I know is valid in this case. Assume: template class base { protected: ~base() { } public: void ...