I am very new to modern C++ and am trying to do something as described below, which throws error on partial template specialization but works completely fine on complete specialization.
What am I doing here?
Language version: C++14 Compiler: GreenHills (GHS)
Doesnt work
template<bool isPrefix>
struct my_struct;
template<>
struct my_struct<true> // specializes true
{
... some data members...
char prefix_data[10]
}
template<>
struct my_struct<false> // specializes false
{
... only other data members...
// no prefix data member variable
}
template<bool isEnabled, class T>
void prefixData(const T& data)
{
// performing some operation on T
data.prefix_data[0] = 0x01;
}
// DOES NOT WORK, THROWS COMPILATION ERROR
template<class T>
void prefixData<false, T>(const T& data)
{
// no logic required here
}
However, if I specify complete specialization for the function it works.
This Works
template<>
void prefixData<false, my_struct<false>>(const T& data)
{
}
P.S: I want to avoid run-time polymorphism (abstract class + inheritance) since the code will run on embedded platform with limited resources
I want to avoid explicit specialization of each cases. I have explained here with just isPrefix in my_struct. My actual code contains more template variables.
