In C++, I'm wondering why the bool type is 8 bits long (on my system), where only one bit is enough to hold the boolean value ?
I used to believe it was for performance reasons, but then on a 32 bits or 64 bits machine, where registers are 32 or 64 bits ...
For example, say I have a class Temp:
class Temp
{
public:
int function1(int foo) { return 1; }
void function2(int bar) { foobar = bar; }
private:
int foobar;
};
When I create an object of class Temp, how would I calcul...
I was reading the answers for this question and found that there is actually a method called length() for std::string (I always used size()). Is there any specific reason for having this method in std::string class? I read both MSDN and CppRefernce, and t...
I am planning to use an Arduino programmable board. Those have quite limited flash memories ranging between 16 and 128 kB to store compiled C or C++ code.
Are there ways to estimate how much (standard) code it will represent ?
I suppose this is very vag...
I am planning to use an Arduino programmable board. Those have quite limited flash memories ranging between 16 and 128 kB to store compiled C or C++ code.
Are there ways to estimate how much (standard) code it will represent ?
I suppose this is very vag...
I am planning to use an Arduino programmable board. Those have quite limited flash memories ranging between 16 and 128 kB to store compiled C or C++ code.
Are there ways to estimate how much (standard) code it will represent ?
I suppose this is very vag...
How do I find the size of a 2 dimensional vector? So far I have the following code which doesn't compile.
#include <iostream>
#include <vector>
using namespace std;
int main()
{
vector < vector <int> > v2d;
for (int x ...
How do I find the size of a 2D array in C++? Is there any predefined function like sizeof to determine the size of the array?
Also, can anyone tell me how to detect an error in the getvalue method for arrays while trying to get a value which is not set?
...
I am having the following issue with my code:
int n = 10;
double tenorData[n] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
Returns the following error:
error: variable-sized object 'tenorData' may not be initialized
Whereas using double tenorData[10] work...
Is there a function I can use to get total file line number in C++, or does it have to be manually done by for loop?
#include <iostream>
#include <ifstream>
ifstream aFile ("text.txt");
if (aFile.good()) {
//how do i get total file line numb...
I tried:
#include <vector>
int main () {
std::vector<int> v;
int size = v.size;
}
but got the error:
cannot convert 'std::vector<int>::size' from type 'std::vector<int>::size_type (std::vector<int>::)() const noe...