Viewing file:  range-for7.C (2.11 KB) -rw-r--r--
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// PR c++/46056
// Check that range-based for loop calls destructors
// when required
// { dg-do run { target c++11 } }
extern "C" void abort();
int value_counter = 0, it_counter = 0, seq_counter = 0;
struct Int
{
int x;
Int(int v)
:x(v)
{
++value_counter;
}
Int(const Int &o)
:x(o.x)
{
++value_counter;
}
~Int()
{
--value_counter;
}
};
struct iterator
{
int x;
iterator(int v)
:x(v)
{
++it_counter;
}
iterator(const iterator &o)
:x(o.x)
{
++it_counter;
}
~iterator()
{
--it_counter;
}
iterator &operator ++() { ++x; return *this; }
int operator *() { return x; }
bool operator != (const iterator &o) { return x != o.x; }
};
struct container
{
int min, max;
container(int a, int b) :min(a), max(b)
{
++seq_counter;
}
container(const container &) = delete;
~container()
{
--seq_counter;
}
};
iterator begin(container &c)
{
return iterator(c.min);
}
iterator end(container &c)
{
return iterator(c.max + 1);
}
int main()
{
for (Int x : container(0, 10))
{
if (value_counter != 1) abort();
if (it_counter != 2) abort();
if (seq_counter != 1) abort();
}
if (value_counter != 0) abort();
if (it_counter != 0) abort();
if (seq_counter != 0) abort();
try
{
for (Int x : container(0, 10))
{
if (value_counter != 1) abort();
if (it_counter != 2) abort();
if (seq_counter != 1) abort();
}
if (value_counter != 0) abort();
if (it_counter != 0) abort();
if (seq_counter != 0) abort();
for (Int x : container(0, 10))
{
if (value_counter != 1) abort();
if (it_counter != 2) abort();
if (seq_counter != 1) abort();
if (x.x == 5)
throw 0;
}
}
catch (int)
{
if (value_counter != 0) abort();
if (it_counter != 0) abort();
if (seq_counter != 0) abort();
}
return 0;
}
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