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win32: add except::try_func

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This commit is contained in:
Danny Robson 2018-08-14 16:47:59 +10:00
parent 2e3aaa4c17
commit d8f916a25b
1 changed files with 14 additions and 0 deletions
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14
win32/except.hpp
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@ -11,6 +11,8 @@
#define CRUFT_UTIL_WIN32_EXCEPT_HPP #define CRUFT_UTIL_WIN32_EXCEPT_HPP
#include <stdexcept> #include <stdexcept>
#include <functional>
#include <windows.h> #include <windows.h>
namespace cruft::win32 { namespace cruft::win32 {
@ -22,6 +24,18 @@ namespace cruft::win32 {
DWORD code (void) const; DWORD code (void) const;
static DWORD last_code (void); static DWORD last_code (void);
template <typename FunctionT, typename ...ArgsT>
static decltype(auto)
try_call (FunctionT &&func, ArgsT &&...args)
{
return try_value (
std::invoke (
std::forward<FunctionT> (func),
std::forward<ArgsT> (args)...
)
);
}
static HANDLE try_value (HANDLE); static HANDLE try_value (HANDLE);
static void try_code (void); static void try_code (void);