I am defining a member variable like this:
float m_Colors[4];
In the constructor I want to initialize it like this:
m_Color = {0.0f, 0.0f, 0.0f, 1.0f};
Even though I have done this a million times before on this particular occasion I get the error "too many initializer values". How could on these two very simple lines of code possibly be something wrong? Please englighten me.
You cannot reinitialize the array again with the initializer syntax (it was already default initialized when the class was constructed).
You can use the use a ctor initializer list to initialize the array when the class is constructed.
struct S
{
S( )
: floats_{ 1.0f, 2.2f, 3.3f, 4.4f }
{ }
private:
float floats_[ 4 ];
};
If you want use initializer for built in array, you must do when declare it. Otherwise you can use like this in your constructor:
float tmp[] = { 0.0f, 0.0f, 0.0f, 1.0f };
memcpy_s(m_Colors, 4, tmp, 4);
You can use std::array<...> as datatype for your member. This way you can initialise it with curly-braces and also assign it this way if needed plus you get some additional modern C++ benefits.
#include <array>
class Object
{
public:
Object() : m_Colors{0.0f, 0.0f, 0.0f, 1.0f}
{
}
private:
std::array<float, 4> m_Colors;
};
If you need to reassign:
void reinit()
{
m_Colors = {0.0f, 0.0f, 0.0f, 1.0f};
}
m_Colors<->m_Color? Please show your exact code (a minimal reproducible example).std::arrayfor example, not a C-like array.=syntax in the constructor iirc