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gerror: Document in the GError rules that stack allocation is bad

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It means that extended error domains can’t be used.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
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Philip Withnall
2021-01-13 13:28:12 +00:00
parent 5f11206237
commit b2230cb3d1
1 changed files with 2 additions and 0 deletions
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glib/gerror.c
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@@ -340,6 +340,8 @@
* - A `GError*` must be initialized to %NULL before passing its address * - A `GError*` must be initialized to %NULL before passing its address
* to a function that can report errors. * to a function that can report errors.
* *
* - #GError structs must not be stack-allocated.
*
* - "Piling up" errors is always a bug. That is, if you assign a * - "Piling up" errors is always a bug. That is, if you assign a
* new #GError to a `GError*` that is non-%NULL, thus overwriting * new #GError to a `GError*` that is non-%NULL, thus overwriting
* the previous error, it indicates that you should have aborted * the previous error, it indicates that you should have aborted