利用union做类型转换
September10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | #include using namespace std; union conv {double arg; struct fl{float real; float imag;}f;}; int main() { float farr[] = {1.0, 2.0}; double* pd = (double*)(farr); conv c; c.arg = *pd; cout << c.f.real << endl; cout << c.f.imag << endl; return 0; } |
