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Fix library deprecation warning

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Since C++17, using template specialization 'std::allocator<void>' in any shape or form (even just mentioning it) is deprecated! A simple workaround is replacing 'void' by another (preferably empty) type, e.g. 'fmt::monostate'.

Found by Clang 9 in Visual Studio.
This commit is contained in:
Daniela Engert 2019-02-06 08:37:03 +01:00 committed by Victor Zverovich
parent 9a0a24f90b
commit 01f34d0b0b
1 changed files with 3 additions and 2 deletions
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5
test/prepare-test.cc
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@ -618,8 +618,9 @@ template <typename T> struct user_allocator {
~user_allocator() = default; ~user_allocator() = default;
template <typename U> user_allocator(const user_allocator<U>&) {} template <typename U> user_allocator(const user_allocator<U>&) {}
pointer allocate(size_type cnt, pointer allocate(
typename std::allocator<void>::const_pointer = FMT_NULL) { size_type cnt,
typename std::allocator<fmt::monostate>::const_pointer = FMT_NULL) {
return new value_type[cnt]; return new value_type[cnt];
} }