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Asked: 2026-05-21T11:54:37+00:00

I have this code: TCHAR *sRes; sRes = (TCHAR *) calloc(16384, sizeof(TCHAR)); DWORD dwRes

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I have this code:

TCHAR *sRes;
sRes = (TCHAR *) calloc(16384, sizeof(TCHAR));
DWORD dwRes = sizeof(sRes);

dwRes is always 8, and of course _tcslen(sRes) is always 0.

I am looking for 16384.

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1 Answer

  1. Editorial Team

    There is no supported mechanism for obtaining size of a block allocated with malloc or calloc. If you call HeapAlloc instead you may call HeapSize thereafter.

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