~/talk

Link compatibility

on YouTube 04m
Talkat CppCon 2016 · 2016-09-18..09-23· [c-and-cpp]

speaker

name:Arvid Norberg
links:none on file

resources

video:https://youtu.be/cu21_TtaYug
slides:none on file

summary

Library headers often hide build-time config flags that change struct layout and cause subtle memory corruption when client and library differ. The fix is to emit a buildconfig header that concatenates active options into a unique symbol, define that symbol in the library and force clients to call it so a mismatch produces a link error rather than runtime corruption. Uses pkg-config or boost.build for propagation and prefers namespace-based ABI design for long term stability.

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chapters (8)

  1. 0:00Intro
  2. 0:20Libraries
  3. 0:36struct
  4. 2:00memory corruption
  5. 2:16buildconfig
  6. 2:53empty function
  7. 3:21instantiate
  8. 3:31binary layout

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