Comments on: Pimpl idiom without dynamic memory allocation https://codesynthesis.com/~boris/blog//2010/07/20/pimpl-idiom-without-dynamic-allocation/ Boris Kolpackov's blog about software Wed, 22 Apr 2026 10:45:14 +0000 http://wordpress.org/?v=2.2.2 By: Guillaume https://codesynthesis.com/~boris/blog//2010/07/20/pimpl-idiom-without-dynamic-allocation/#comment-1581 Guillaume Wed, 21 Jul 2010 22:32:29 +0000 https://codesynthesis.com/~boris/blog//2010/07/20/pimpl-idiom-without-dynamic-allocation/#comment-1581 Assuming 16-byte alignment, In the constructor: cache = (real_cache & ~15) + 16; In the members: char *cache; char real_cache[size + 16]; No need for boost or TR1, and it could even be done in C89. Assuming 16-byte alignment,
In the constructor:
cache = (real_cache & ~15) + 16;
In the members:
char *cache;
char real_cache[size + 16];

No need for boost or TR1, and it could even be done in C89.

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