<分区>
考虑:
class Note
{
public:
// ...
private:
static const char* const NOTE_NAMES[12] =
{ "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" };
}
虽然编译正常， IntelliSense 给我一个错误:
IntelliSense: a member of type "const char *const [12]" cannot have an in-class initializer
这是错误还是我做错了什么？
最佳答案
根据C++标准
If a non-volatile const static data member is of integral or enumeration type, its declaration in the class definition can specify a brace-or-equal-initializer in which every initializer-clause that is an assignmentexpression is a constant expression
所以你的代码不满足 C++ 标准。
另一方面
A static data member of literal type can be declared in the class definition with the constexpr specifier; if so, its declaration shall specify a brace-or-equal-initializer in which every initializer-clause that is an assignment-expression is a constant expression
所以为了得到你应该写的有效代码
static constexpr char* const NOTE_NAMES[12] =
{ "C", "C#", "D", "D#", "E", "F", "F#", "G", "G#", "A", "A#", "B" };
关于c++ - IntelliSense:类型为 "const char *const []"的成员不能具有类内初始化程序，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/24278473/
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