zapcc | zapcc is a caching C++ compiler based on clang | Compiler library
kandi X-RAY | zapcc Summary
kandi X-RAY | zapcc Summary
zapcc is a caching C++ compiler based on clang, designed to perform faster compilations. zapcc uses in-memory compilation cache in client-server architecture, remembering all compilation information between runs. zapcc is the client while zapccs is the server. Each zapcc run will reuse an existing server or if none was available will start a new one.
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Community Discussions
Trending Discussions on zapcc
QUESTION
I discovered different compilers behavior when trying to specialize a template. Here is the minimum code that illustrates the problem:
...ANSWER
Answered 2019-Apr-04 at 19:22I am not a language lawyer, but this should not compile. You're trying to initialize a value with itself at compile-time. I would guess this is a clang bug. Actually, I don't see why GCC should be following a recursion path like that if it hits a cycle.
By the way, MSVC tells you (GodBolt):
QUESTION
Example below fails with all compilers I've tried: gcc-8.2, clang-8.0 (both options --std=c++17
and std=c++2a
were tried) and zapcc-2017.08.
From my point of view the code sample is valid and should be compiled. Or, at least, there should be a more comprehensive error. It does look like a bug in the std library, not covering this particular case for result_of
. Am I wrong?
ANSWER
Answered 2018-Nov-08 at 18:08result_of_t
means "the result of calling/invoking F
with Args...
".
result_of_t
means "the result of calling int
with bar&
". Which doesn't exist because you can't call an int
with, well, anything.
result_of
is not "extract the return type from a function type".
QUESTION
I am trying to understand overload resolution.
First let's consider this first case:
...ANSWER
Answered 2017-Dec-08 at 12:33N4713 16.3.3.2:
3.3 User-defined conversion sequence U1 is a better conversion sequence than another user-defined conversion sequence U2 if they contain the same user-defined conversion function or constructor or they initialize the same class in an aggregate initialization and in either case the second standard conversionsequence of U1 is better than the second standard conversion sequence of U2. [Example
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