Allocate member variables with custom allocator

[quantumwizard]

member std::vector variables should use template parameter Allocator instead of default std::allocator

[mclow]

This shouldn't work; because std::vector requires it's allocator's value_type to match the value_type of the vector. libc++, for example, will static_assert to check this.

[quantumwizard]

@mclow I made changes to rebind the allocator for the correct types

[codecov]

Codecov Report

Merging #76 into develop will not change coverage.
The diff coverage is n/a.

@@ Coverage Diff @@## develop #76 +/- ##
========================================
Coverage 64.33% 64.33% ========================================
Files 10 10 Lines 816 816 Branches 290 290 ========================================
Hits 525 525 Misses 125 125 Partials 166 166 

Impacted Files	Coverage Δ
include/boost/format/format_class.hpp	87.50% <ø> (ø)

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[mclow]

That's better. I will give this a try (and probably commit it), but this is not even close to right. (the code, not the patch).

There's no provision for actually supplying an allocator to this class. It's all "default construct" everywhere. This works great for stateless allocators, but not so well for stateful ones.