Question
what does this logic error mean? And what do i do to fix it. Done in C++ #pragma once #include // std::less #include // std::iterator_traits
what does this logic error mean? And what do i do to fix it. Done in C++
#pragma once
#include
#include
namespace sort {
// This is C++ magic which will allows our function
// to default to using a
// is unspecified. It uses defines std::less
// for the iterator's value_type.
//
// For example: if you have a vector
// iterator's value type will be float. std::less
// will select the
// default comparator.
template
using less_for_iter = std::less
/* Efficiently swap two items - use this to implement your sorts */
template
void swap(T & a, T & b) noexcept { /* TODO */
T temp = std::move(a);
a = std::move(b);
b = std::move(temp);
}
template
void bubble(RandomIter begin, RandomIter end, Comparator comp = Comparator{}) {
// Random access iterators have the same traits you defined in the Vector class
// For instance, difference_type represents an iterator difference
// You may delete the types you don't use to remove the compiler warnings
using _it = std::iterator_traits
using difference_type = typename _it::difference_type;
using value_type = typename _it::value_type;
using reference = typename _it::reference;
using pointer = typename _it::pointer;
RandomIter beg = begin;
for(RandomIter i = begin; i
k = i;
for(RandomIter j = beg + 1; j
if(comp(*j,*beg)){
swap(*beg,*j);
}
++beg;
}
}
}
template
void insertion(RandomIter begin, RandomIter end, Comparator comp = Comparator{}) {
RandomIter beg = begin;
for(RandomIter i = begin + 1; i
if(comp(*i, *(i-1))){
swap(*i, *(i-1));
beg = i - 1;
for(RandomIter j = i - 2; begin
if(comp(*beg,*j)){
swap(*beg,*j); --beg;
}
else{
break;
}
}
}
}
}
template
void selection(RandomIter begin, RandomIter end, Comparator comp = Comparator{}) {
RandomIter min = begin;
RandomIter j = begin;
for(RandomIter i = begin; i
min = i;
for(j = i + 1; j
if(comp(*j, *min)){
min = j;
}
}
swap(*min, *i);
}
}
}
ERROR IM RECIEVING 
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Practical Database Programming With Visual Basic.NET
Authors: Ying Bai
1st Edition
0521712351, 978-0521712354
