CODEWITHSUNDEEP
c#c++constraint-handling-rules
darkThoughts
darkThoughts

Reputation: 443

using constraint_handlers in C++

I have a code in C# that uses _set_invalid_parameter_handler function. It's Windows specific and i am trying to rewrite this code in standard C++ so it runs on Linux.

I am not sure how to translate this functionality. I was advised to use maybe http://en.cppreference.com/w/c/error/set_constraint_handler_s but i have followed this example and the types of constraint handlers aren't recognized in visual studio 2015 nor when i try to compile it on Linux. Will appreciate some help either using constraint handlers or finding some other way to replicate _set_invalid_parameter_handler functionality in standard C++.

Upvotes: 3

Views: 519

Answers (1)

Hans Olsson
Hans Olsson

Reputation: 12527

It's not so easy set_constraint_handler is a C11-functionality, and set_invalid_parameter is Microsoft-specific (also in C++).

In standard C++ the solution is to use exceptions, and try/catch instead of setting a handler - but it requires that the low-level functions you call actually detect and signal errors with exceptions - so we would need a more complete example to see if this helps.

Upvotes: 0

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