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-rw-r--r--dev/lib/logic/opt.hpp17
1 files changed, 15 insertions, 2 deletions
diff --git a/dev/lib/logic/opt.hpp b/dev/lib/logic/opt.hpp
index 442756c..70bce5e 100644
--- a/dev/lib/logic/opt.hpp
+++ b/dev/lib/logic/opt.hpp
@@ -20,6 +20,7 @@ namespace ocl
count = err - okay + 1,
};
+ template <typename char_type = char>
struct opt final
{
explicit opt(const return_type& return_type)
@@ -27,11 +28,23 @@ namespace ocl
{
}
- opt& expect(const char* input)
+ opt& expect(const char_type* input)
{
if (m_ret == return_type::err)
{
- throw std::runtime_error(input);
+ throw std::runtime_error(input ? input : "opt::error");
+ }
+
+ return *this;
+ }
+
+ template <typename ErrorHandler>
+ opt& expect_or_handle(const char_type* input)
+ {
+ if (m_ret == return_type::err)
+ {
+ ErrorHandler err_handler;
+ err_handler(input ? input : "opt::error");
}
return *this;