There is no way to explicitly specify the template arguments when calling a constructor template, so they have to be deduced through argument deduction. This is because if you say:
Foo<int> f = Foo<int>();
The <int>
is the template argument list for the type Foo
, not for its constructor. There’s nowhere for the constructor template’s argument list to go.
Even with your workaround you still have to pass an argument in order to call that constructor template. It’s not at all clear what you are trying to achieve.
Related Posts:
- Here is some error with my .h file which show [Error] unterminated #ifndef when I include my class template in it
- What does the explicit keyword mean?
- Struct Constructor in C++?
- C++ struct constructor
- What does the explicit keyword mean?
- Officially, what is typename for?
- Inheriting constructors
- Inheriting constructors
- how to define -std=c++11 as default in g++
- Argument list for class template is missing
- What does “missing template argument” mean?
- C++ error: no matching constructor for initialization of
- no default constructor exists for class
- What does “missing template argument” mean?
- Difference of keywords ‘typename’ and ‘class’ in templates?
- Getting error: ISO C++ forbids declaration of with no type
- “Implicit instantiation of undefined template” when forward declaring template class
- “used without template parameters”
- QltAW.png
- Error: No instance of constructor matches the argument list
- expected constructor, destructor, or type conversion before ‘(’ token
- expected identifier before string constant
- error C2106: ‘=’ : left operand must be l-value
- c++ –
- use of class template requires template argument list
- Creating an instance of class
- C++ Templates – LinkedList
- In C++ can constructor and destructor be inline functions?
- C++ template – error: expected initializer before ‘<' token
- template argument deduction/substitution failed, when using std::function and std::bind
- When is it safe to call this-> in constructor and destructor
- Class template inheritance C++
- got “cannot appear in a constant-expression” when using template
- In C++ what does template<> mean?
- non-member function cannot have cv-qualifier
- How can I add reflection to a C++ application?
- C++ Cannot call constructor directly in small example
- Unrecognizable template declaration/definition
- error C2244 unable to match function definition to an existing declaration
- error C2995: function template has already been defined
- invalid use of template name without an argument list
- Struct with template variables in C++
- Template constructor in a class template – how to explicitly specify template argument for the 2nd parameter?
- What is an undefined reference/unresolved external symbol error and how do I fix it?
- How to throw a C++ exception
- The static keyword and its various uses in C++
- What is the ‘override’ keyword in C++ used for? [duplicate]
- Unresolved external symbol in object files
- Mutex example / tutorial? [closed]
- “std::bad_alloc”: am I using too much memory?
- What does “dereferencing” a pointer mean?
- What is a smart pointer and when should I use one?
- Expected initializer before namespace
- A proper way to create a matrix in c++
- No matching member function for call to ‘push_back’ error
- “X does not name a type” error in C++
- Difference between long double and double in C and C++ [duplicate]
- Why there is no pop_front method in C++ std::vector?
- How do I generate a random number between two variables that I have stored?
- How to print pthread_t
- Pointer to incomplete class type is not allowed
- C++ error: “Array must be initialized with a brace enclosed initializer”
- Why am I getting string does not name a type Error?
- How to avoid the error: terminate called after throwing an instance of ‘std::logic_error’ what(): basic_string::_S_construct null not valid
- Error while overloading operator (must be a nonstatic member function)
- C++ Fatal Error LNK1120: 1 unresolved externals
- Vector of structs initialization
- C++ deprecated conversion from string constant to ‘char*’
- Why do C++ objects have a default destructor?
- Where do “pure virtual function call” crashes come from?
- How to convert vector to array
- “non-standard syntax; use ‘&’ to create a pointer to member” error in Visual Studio 2015
- libpng warning: iCCP: known incorrect sRGB profile
- Hash function for a string
- CMake error at CMakeLists.txt:30 (project): No CMAKE_C_COMPILER could be found
- How to run valgrind with basic c example?
- initial value of reference to non-const must be an lvalue
- Typedef function pointer?
- cc1plus: error: unrecognized command line option “-std=c++11” with g++
- cannot declare variable ‘’ to be of abstract type ‘’
- Difference between ‘struct’ and ‘typedef struct’ in C++?
- Debug vs Release in CMake
- C++ – include unistd.h: why not cunistd?
- Dynamically allocated string array, then change it’s value?
- Use the auto keyword in C++ STL
- C++ – statement cannot resolve address for overloaded function
- What’s the difference between * and & in C?
- how to convert from int to char*?
- Stray ‘\342’ in C++ program
- gcc -g :what will happen
- QByteArray to QString
- How do you append an int to a string in C++?
- C++ correct way to return pointer to array from function
- Understanding error “terminate called after throwing an instance of ‘std::length_error’ what(): basic_string::_S_create Aborted (core dumped)”
- how to find 2d array size in c++
- Getting error “array bound is not an integer constant before ‘]’ token”
- Fatal error: iostream: No such file or directory in compiling C program using GCC
- How to find and replace string?
- allocating an object of abstract class type error
- “Cannot allocate an object of abstract type” error