Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
There is an example on cdecl that goes (double (^)(int))foofoo means cast foofoo into block (int) returning double.
What does it mean to cast foofoo into a “block” of int? What does the symbol ^ exactly mean in this context. Usually it is bitwise XOR.
It’s a GCC extension made by Apple, and implemented also in Clang. Blocks are small unnamed functions and that syntax is the type of a block. See Block Language Spec.