"A language and its standard library are theoretically different things, but in any practical sense, the choice to use a language carries with it the choice to

"A language and its standard library are theoretically different things, but in any practical sense, the choice to use a language carries with it the choice to use its standard library." That's less true when talking about C/C++ than other languages. C/C++ are quite often used in embedded systems, which often have problems with dynamic memory allocation, code size, etc. This means that many embedded systems don't use the standard library, or only use portions of it.