在C 语言中,柔性数组成员(Flexible Array Member)是一种特殊的结构体成员,它允许在结构体末尾定义一个数组,但数组的大小在编译时是不确定的,而是在运行时通过动态内存分配来确定。由于柔性数组成员的大小在编译时未知,因此它不能在结构体初始化时被初始化。 错误原因 当你尝试在结构体初始化时为柔性数组成员指定一...
The analyzer found that the iterator section of the ′for′ statement is incrementing or decrementing a variable that is not a counter.
struct stc { int arr[1]; // flexible array member is not supported in C++ }; void test(std::initializer_list<int> lst) { for (auto l : lst) std::cout << l << std::endl; } int main() { stc s; for (int i = 0; i < 10; ++i) { s.arr[i] = i; } // 假设不知...
For instance, a struct or class with an array data member can be initialized using the parenthesized initializer when creating objects dynamically. Conclusion In conclusion, the parenthesized initializer enables C++ programmers to allocate memory for arrays in a more flexible and versatile way than was...