Commit e17deb7a authored by Mathieu Garaud's avatar Mathieu Garaud Committed by Brad King
Browse files

Extend C++17/C++14 feature checks to cover more standard library APIs

Make sure `std::cbegin`, `std::cend`, and `std::size` work in C++17 or
C++14 mode before choosing the corresponding standard level for
compiling CMake itself.  This helps in cases that the compiler is using
a standard library too old to support the full standard level chosen.
parent e6897c72
#include <cstdio>
#include <iterator>
#include <memory>
int main()
{
int a[] = { 0, 1, 2 };
auto ai = std::cbegin(a);
int b[] = { 2, 1, 0 };
auto bi = std::cend(b);
std::unique_ptr<int> u(new int(0));
return *u;
return *u + *ai + *(bi - 1);
}
#include <cstdio>
#include <iterator>
#include <memory>
#include <unordered_map>
int main()
{
int a[] = { 0, 1, 2 };
auto ai = std::cbegin(a);
int b[] = { 2, 1, 0 };
auto bi = std::cend(b);
auto ci = std::size(a);
std::unique_ptr<int> u(new int(0));
return *u;
return *u + *ai + *(bi - 1) + (3 - static_cast<int>(ci));
}
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment