8b310cc05d
Since all of polybar is built at once, there is no chance that this is ever linked to an object that was compiled with another `-std=` Ref: https://stackoverflow.com/a/46857525/5363071
40 lines
1011 B
C++
40 lines
1011 B
C++
#pragma once
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#include <cstdlib>
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#include "common.hpp"
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POLYBAR_NS
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template <typename T>
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using malloc_ptr_t = shared_ptr<T>;
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namespace memory_util {
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/**
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* Create a shared pointer using malloc/free
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*
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* Generates a noexcept-type warning because the mangled name for
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* malloc_ptr_t will change in C++17. This doesn't affect use because we have
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* no public ABI, so we ignore it here.
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* See also this SO answer: https://stackoverflow.com/a/46857525/5363071
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*/
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wnoexcept-type"
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template <typename T, size_t Size = sizeof(T), typename Deleter = decltype(std::free)>
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inline malloc_ptr_t<T> make_malloc_ptr(Deleter deleter = std::free) {
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return malloc_ptr_t<T>(static_cast<T*>(calloc(1, Size)), deleter);
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}
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#pragma GCC diagnostic pop
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/**
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* Get the number of elements in T
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*/
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template <typename T>
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inline auto countof(T& p) {
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return sizeof(p) / sizeof(p[0]);
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}
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} // namespace memory_util
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POLYBAR_NS_END
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