integration with C++ / QT not working

[vlotech]

Hi,

I've tried to integrate the licbor into a QT lib. I've been running in several issues, all related in C99 C++11 related features. The lib is statically build and could be integrated easily, except that the headers generate errors while building:

• restrict not supported:
  ../../lib/qt/libcbor-qt/libcbor-0.3.1/src/cbor/bytestrings.h:62:79: error: expected ',' or '...' before 'data'
  void cbor_bytestring_set_handle(cbor_item_t *item, cbor_mutable_data restrict data, size_t length);
• initializer not supported
  ../../lib/qt/libcbor-qt/libcbor-0.3.1/src/cbor/callbacks.h:224:1: sorry, unimplemented: non-trivial designated initializers not supported

Using -std=c++11 nor -std=c99 (which fails for c++ / qt anyhow) doesn't solve the issue.

What can be done to solve it?

[PJK]

Hi @vlotech, thank you for reporting the issue.

The problems stem from the fact that both restrict and named struct initialization are C-specific. In order to solve this, the headers must be changed so that they only use constructs available in both C and C++.

[cocreature]

Clang and gcc both have a __restrict__ keyword that works for both C and C++, I think msvc calls it __restrict. For now I just changed it to __restrict__ locally and it works just fine using clang.

[PJK]

Both of the problems have been fixed through #36