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Questioncode of this question Pin
avadhnaresh kushwaha12-Aug-20 8:17
avadhnaresh kushwaha12-Aug-20 8:17 
AnswerRe: code of this question Pin
Richard MacCutchan12-Aug-20 8:19
mveRichard MacCutchan12-Aug-20 8:19 
QuestionKeypad locks Pin
kalberts7-Mar-20 13:23
kalberts7-Mar-20 13:23 
QuestionTo insert a node at the back of a XOR doubly linked list Pin
Tarun Jha17-Oct-19 9:38
Tarun Jha17-Oct-19 9:38 
AnswerRe: To insert a node at the back of a XOR doubly linked list Pin
ZurdoDev10-Jan-20 1:02
professionalZurdoDev10-Jan-20 1:02 
QuestionWhy non-template function does not compile where as template function compiles? Pin
PBMBJoshi2-May-19 23:23
PBMBJoshi2-May-19 23:23 
AnswerRe: Why non-template function does not compile where as template function compiles? Pin
Richard MacCutchan2-May-19 23:29
mveRichard MacCutchan2-May-19 23:29 
AnswerRe: Why non-template function does not compile where as template function compiles? Pin
k505410-Oct-19 8:53
mvek505410-Oct-19 8:53 
int&& is a rvalue reference. Until C++11 we only had lvalue references. In Nontemplate_universal_ref(x), x is a lvalue, not an rvalue. Try the following:
C++
template <typename ParamType>
void Template_universal_ref(ParamType&& param)
{
    cout << "Template_universal_ref, param : " << param << endl;
}

void NonTemplate_universal_ref(int&& param)
{
    cout << "NonTemplate_universal_ref(int&&), param : " << param << endl;
}

void NonTemplate_universal_ref(int& param)
{
    cout << "NonTemplate_universal_ref(int&), param : " << param << endl;
}

int main()
{
    int x=5;
    Template_universal_ref(x);
    NonTemplate_universal_ref(x); 
    NonTemplate_universal_ref(x+3);
    return 0;
}
Note that in the second call to NonTemplate_universal_ref, the argument x+3 is not an lvalue, that is, it cannot be assigned to.

Now, maybe someone can explain why the call via the template works?
QuestionAdvice on interdependent asynchronous functions and task queuing? Pin
arnold_w7-Feb-19 23:07
arnold_w7-Feb-19 23:07 
AnswerRe: Advice on interdependent asynchronous functions and task queuing? Pin
arnold_w7-Feb-19 23:34
arnold_w7-Feb-19 23:34 
QuestionRecommended way to deal with queues and pointers to buffers Pin
arnold_w3-Feb-19 9:09
arnold_w3-Feb-19 9:09 
AnswerRe: Recommended way to deal with queues and pointers to buffers Pin
Richard MacCutchan3-Feb-19 22:19
mveRichard MacCutchan3-Feb-19 22:19 
GeneralRe: Recommended way to deal with queues and pointers to buffers Pin
arnold_w3-Feb-19 23:40
arnold_w3-Feb-19 23:40 
GeneralRe: Recommended way to deal with queues and pointers to buffers Pin
Richard MacCutchan3-Feb-19 23:48
mveRichard MacCutchan3-Feb-19 23:48 
GeneralRe: Recommended way to deal with queues and pointers to buffers Pin
arnold_w4-Feb-19 3:15
arnold_w4-Feb-19 3:15 
GeneralRe: Recommended way to deal with queues and pointers to buffers Pin
Richard MacCutchan4-Feb-19 3:46
mveRichard MacCutchan4-Feb-19 3:46 
GeneralRe: Recommended way to deal with queues and pointers to buffers Pin
arnold_w4-Feb-19 3:55
arnold_w4-Feb-19 3:55 
GeneralRe: Recommended way to deal with queues and pointers to buffers Pin
Richard MacCutchan4-Feb-19 4:04
mveRichard MacCutchan4-Feb-19 4:04 
GeneralRe: Recommended way to deal with queues and pointers to buffers Pin
Business2sell18-Feb-19 18:08
professionalBusiness2sell18-Feb-19 18:08 
QuestionCan a union in standard C "skip" members? Pin
arnold_w31-Jan-19 22:46
arnold_w31-Jan-19 22:46 
AnswerRe: Can a union in standard C "skip" members? Pin
Richard MacCutchan31-Jan-19 23:18
mveRichard MacCutchan31-Jan-19 23:18 
GeneralRe: Can a union in standard C "skip" members? Pin
arnold_w31-Jan-19 23:47
arnold_w31-Jan-19 23:47 
GeneralRe: Can a union in standard C "skip" members? Pin
Richard MacCutchan31-Jan-19 23:52
mveRichard MacCutchan31-Jan-19 23:52 
GeneralRe: Can a union in standard C "skip" members? Pin
arnold_w1-Feb-19 0:13
arnold_w1-Feb-19 0:13 
GeneralRe: Can a union in standard C "skip" members? Pin
Richard MacCutchan1-Feb-19 1:42
mveRichard MacCutchan1-Feb-19 1:42 

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