I can’t understand what the problem is. This code just does not compile:

int main (int argc, char * argv [])
{
int arr [] = {1,2,3,4,5,6,7};
for each (int var in arr)
{
}
system ("pause");
}

Compilation error: expected a {.

What is he missing here?

Answer 1, authority 100%

Apparently this is non-standard syntax for each, in , implemented in due time in VC++ and VC++ / CLI. However, the C++ standard has an alternative syntax, which should be used:

for (auto const & amp; int: arr)
{
}

Answer 2, authority 100%

in C++ for each is not a language construct but a function from the STL standard library that should be used as follows in your example:

# include & lt; iostream & gt;
#include & lt; algorithm & gt;
int main (int argc, char * argv [])
{
  int arr [] = {1,2,3,4,5,6,7};
  std :: for_each (arr, arr + sizeof (arr) / sizeof (arr [0]), [] (int el)
  {
    std :: cout & lt; & lt; el & lt; & lt; '';
  });
  system ("pause");
  return 0;
}

Answer 3, authority 33%

Your compiler may not support this option. And he does the right thing, in general, because it is a complete non-standard.

The standard notation (since C++ 11) is as follows:

int main (int argc, char * argv [])
{
int arr [] = {1,2,3,4,5,6,7};
for (int var: arr)
 {
 }
}