unix - what is a library exerciser program? -

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i reading "the art of unix programming" book , found quote saying :

in unix world, libraries delivered libraries should come exerciser programs.

so library exerciser?

a library exerciser program, or collection of programs, testing library (by calling some, or most, , ideally public functions or methods of library). read unit testing.

btw, advice make library exercisers imho not specific unix world (it should hold gnu hurd, posix, vms , windows systems), useful software library. guess related modules , names in linkers. in exotic, interesting, programming environments (think of lisp or smalltalk machines, or persistent academic oses grasshopper) notion of library not exist, or far linux-like libraries (written in c or c++) exercisers might not mean same thing... ....

notice languages (ocaml, go, d, ... not c11 or c++14) might know notion of modules , have module-aware notion of libraries


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