An array is converted to a pointerto the type of the array; a function is converted to the appropriate pointertofunction type.
将数组转换为指向数组类型的指针,将函数转换为指向函数类型的适当指针。
2
The reason C and C++ never adopted nested functions is because in order to make capture work, you need additional information, with the result that a pointertofunction becomes more complex.