double mv=for_each(coll.begin(),coll.end(),MeanValue()); cout<<"mean value: "<<mv<<endl; } 结果:mean value:4.5 解释:将1 2 3 4 5 6 7 8加起来保存在sum中,num里保存了数字的个数(8),将sum num转换成double型再相除
double mv=for_each(coll.begin(),coll.end(),MeanValue()); cout<<"mean value: "<<mv<<endl; } 结果:mean value:4.5 解释:将1 2 3 4 5 6 7 8加起来保存在sum中,num里保存了数字的个数(8),将sum num转换成double型再相除
GDB说“程序收到信号sigabrt,中止。0x00000000100404740在__gnu_cxx :: new_allocator :: deallocate(double *,unsigned long)()” 编码上半场左右的函数可能不会被责备,因为他们在更简单的旧版我的神经网络(没有图表)。我打赌它在某处的结构中。 更新:如果我将随机数生成为123而不是基于时间的随机种子,它每次都...
double x = 1.0; // int sum = (int)x + 1; printf("sum = %d", sum); return 0; } Output Basics to Advanced - Learn It All!Caltech PGP Full Stack DevelopmentExplore Program Syntax of Static_cast in C++ For the normal/ordinary type conversion, static_cast c++ is employed. This ca...
Static Cast: The simplest cast that can be used is thestatic cast. It is a cast done atcompile time. It can call explicit conversion functions as well as perform implicit type conversions (such asconvertinganintto afloator apointerto avoid*). ...