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Add test for default-identity version

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[SVN r16918]
This commit is contained in:
Dave Abrahams
2003-01-16 22:41:25 +00:00
parent d12dd64125
commit 58e77e80a5
1 changed files with 17 additions and 3 deletions
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20
test/for_each.cpp
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@@ -30,9 +30,9 @@
namespace mpl = boost::mpl;
using mpl::_;
struct printer
struct type_printer
{
printer(std::ostream& s) : f_stream(&s) {}
type_printer(std::ostream& s) : f_stream(&s) {}
template< typename U > void operator()(mpl::identity<U>)
{
*f_stream << typeid(U).name() << '\n';
@@ -42,6 +42,18 @@ struct printer
std::ostream* f_stream;
};
struct value_printer
{
value_printer(std::ostream& s) : f_stream(&s) {}
template< typename U > void operator()(U x)
{
*f_stream << x << '\n';
}
private:
std::ostream* f_stream;
};
#ifdef __ICL
# pragma warning(disable:985)
#endif
@@ -49,7 +61,7 @@ struct printer
int main()
{
typedef mpl::list<char,short,int,long,float,double> types;
mpl::for_each< types,mpl::make_identity<_> >(printer(std::cout));
mpl::for_each< types,mpl::make_identity<_> >(type_printer(std::cout));
typedef mpl::range_c<int,0,10> numbers;
std::vector<int> v;
@@ -65,6 +77,8 @@ int main()
);
#endif
mpl::for_each< numbers >(value_printer(std::cout));
for (int i = 0; i < v.size(); ++i)
assert(v[i] == i);