STD_NOTHROW.cpp

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// checking for std::nothrow
 
 
// will fail if namespaces aren't supported
namespace std {
 
struct nothrow_t { };
 
extern const nothrow_t nothrow;
 
}   // std
 
 
// force a failure by using the same name for an object of a diferent
// type than std:nothrow_t if namespace std isn't honored
const std::nothrow_t *nothrow = &std::nothrow;
 
 
int main (int argc, char *argv[])
{
    (void)&argv;
 
    // foil clever optimizers
    if (argc > 2)
        nothrow = 0;
 
    // will fail at link-time if std::nothrow is not defined
    // in the compiler support library
    return !(0 != nothrow);
}