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Add option to use header-only `Boost::container`

1

[`Boost::container` is declared as a header-only library](https://www.boost.org/doc/libs/1_86_0/doc/html/container.html#container.intro.introduction_building_container). So a header-only option is needed.

zjyhjqs

The current policy of devector is to move the data to the middle of the allocated region whenever capacity is needed on an end. This results in half of the...

karl3wm

By analogy with `boost::container::devector`, I think it would be useful to have a `boost::container::destring`. One of possible use cases is to create complicated concatenation chains without memory allocations(just my opinion,...

denzor200

godbolt reproduces issue: https://godbolt.org/#g:!((g:!((g:!((h:codeEditor,i:(filename:'1',fontScale:14,fontUsePx:'0',j:1,lang:c%2B%2B,selection:(endColumn:1,endLineNumber:13,positionColumn:1,positionLineNumber:13,selectionStartColumn:1,selectionStartLineNumber:13,startColumn:1,startLineNumber:13),source:'%0A%23include+%3Cboost/container/vector.hpp%3E%0A%0Astruct+TypeIsCustomAlignment+%7B%0A++++char+buffer%5B1000%5D+__attribute__((+aligned(64)+))+%3B%0A%7D%3B%0A%0Aint+main()%0A%7B%0A++++boost::container::vector%3C+TypeIsCustomAlignment+%3E+v(1)%3B%0A++++return+0%3B%0A%7D%0A'),l:'5',n:'1',o:'C%2B%2B+source+%231',t:'0')),k:37.36593736593737,l:'4',n:'0',o:'',s:0,t:'0'),(g:!((g:!((h:compiler,i:(compiler:g142,filters:(b:'0',binary:'1',binaryObject:'1',commentOnly:'0',debugCalls:'1',demangle:'0',directives:'0',execute:'0',intel:'0',libraryCode:'0',trim:'1',verboseDemangling:'0'),flagsViewOpen:'1',fontScale:14,fontUsePx:'0',j:1,lang:c%2B%2B,libs:!((name:boost,ver:'185')),options:'-fsanitize%3Dundefined',overrides:!(),selection:(endColumn:1,endLineNumber:1,positionColumn:1,positionLineNumber:1,selectionStartColumn:1,selectionStartLineNumber:1,startColumn:1,startLineNumber:1),source:1),l:'5',n:'0',o:'+x86-64+gcc+14.2+(Editor+%231)',t:'0')),k:50,l:'4',m:61.511423550087876,n:'0',o:'',s:0,t:'0'),(g:!((h:output,i:(compilerName:'x86-64+gcc+14.2',editorid:1,fontScale:14,fontUsePx:'0',j:1,wrap:'1'),l:'5',n:'0',o:'Output+of+x86-64+gcc+14.2+(Compiler+%231)',t:'0')),header:(),l:'4',m:38.488576449912124,n:'0',o:'',s:0,t:'0')),k:62.63406263406264,l:'3',n:'0',o:'',t:'0')),l:'2',n:'0',o:'',t:'0')),version:4

eddeighton