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Editorial Team
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Asked: 2026-05-15T12:01:56+00:00

And I quote from MSDN http://msdn.microsoft.com/en-us/library/aa366533(VS.85).aspx : The malloc function has the disadvantage of

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And I quote from MSDN http://msdn.microsoft.com/en-us/library/aa366533(VS.85).aspx:

The malloc function has the
disadvantage of being run-time
dependent. The new operator has the
disadvantage of being compiler
dependent and language dependent.

Now the questions folks:

a) What do we mean that malloc is run-time dependent? What kind of dynamic memory allocation functions can be independent of run-time? This statement sounds real strange.

b) new is language dependent? Of course it should be right? Are HeapAlloc, LocalAlloc etc language independent?

c) From a pure performance perspective are the MSVC provided routines preferable?

Arpan

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1 Answer

  1. Editorial Team

    a) In this case I think they’re eliding “run-time library” to “run-time”. In other words it depends on the implementation in your C library.

    b) Indeed new is C++ specific. HeapAlloc, etc are technically usable in C and C++.

    c) They can’t be used to create C++ objects because they won’t call constructors so the point is pretty moot. In C++ you should use new and delete.

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