C / C++ / MFC

Member 14968771 wrote:

QTconcurent will not accept more than 5 parameters

int total = 100;
int unalloc = 96;
double percent = unalloc/total;

double percent = (double)unalloc/total:

double total = 1621270208;
double percentFrom = 1604667016;
double percent = percentFrom / total * 100;

void PrintFloats (int n, ...)
{
    int i;
    double val;
    printf ("Printing floats:");
    va_list vl;
    va_start(vl,n);
    for (i=0;i

for(i = 0; i < n; ++i) {
    val = va_arg(vl, float);
    printf("%f ", val);
}
va_end(vl);
putchar('\n');

PrintFloats(1.1, 2.2, -15.2, nan(""));

#include <cstdarg>
#include <iostream>

struct S {
    int data;
    S(int d) : data(d) {}
};

void f(size_t n, ...)
{
    va_list args;
    va_start(args, n);
    for(size_t i = 0; i < n; ++i) {
        S* ptr = va_arg(args, S*);
        std::cout << ptr->data << '\n';
    }
}

int main()
{
    S item1(1); 
    S item2(2);
    S item3(3); 

    f(3, &item1, &item2, &item3);
}

1. Since your code is C++ then why do you use malloc rather than new?
2. How and where do you free your allocated in heap memory?

<pre lang="C++">   SomeNode * Tail;
    Tail = (SomeNode*)malloc(sizeof(SomeNode));
    Tail->next = NULL;
    Tail->data = 100;

Quote:

One thing it is not good using malloc in C++ apps is because the class ctor is not called.