howlowl

const safe: #include using namespace std; class A{ int ia; public: void setA(const int a){ ia = a; } int getA() const { /* const-safe functions: * won't change anything; * const object

__________________________________________________________________________________________________________________________________________ standard c library: file IO, strings, memory allocation, dat

using range-based for loop: #include #include "animals.hpp" using namespace std; int main(int argc, char ** argv){ Dog a ("arnie"); Dog b ("barky"); Dog c ("not a cat"); for(const Dog & d: {a,

(1)What is the difference between %f and %lf in C programming? For output using the printf family of functions, the %f and %lf specifiers mean the same thing; the l is ignored. Both require a corresp...

(一）What will happen if so ? Floating-Point Overflow and Underflow  Suppose the biggest possible float value on your system is about 3.4E38 and you do this:  float toobig = 3.4E38 * 100.0f;  printf("%...