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The libcall family of functions need to use "int" for both input and
output. The output side was fixed in 9c42232 but I forgot about the
input side.
# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
#
# On branch libcallnr
# Your branch is up to date with 'upstream/master'.
#
# Changes to be committed:
# modified: src/nvim/eval/funcs.c
# modified: src/nvim/os/dl.c
#
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Vim's documentation simply states that libcallnr() should be used "for a
function that returns an int". Based on the tests, code, and common
syscall interfaces, this should likely be taken literally instead of
trying to apply some well-defined type lipstick.
Notably, this change fixes Test_libcall_libcallnr on hppa (a 32-bit
big-endian system).
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ref #343
Though I don't see a strong benefit, it isn't too much of a burden, and
maybe avoids confusion in some cases.
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Although UNIX is a registered trademark of The Open Group, it doesn't
really matter whether we refer to these systems as UNIX, Unix, or
Unix-like. So, for consistency, refer to them collectively as Unix.
Related:
http://www.greens.org/about/unix.html
http://www.unixica.com/html/unixunix.html
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`-Wstrict-prototypes` warn if a function is declared or defined without
specifying the argument types.
This warning disallow function prototypes with empty parameter list.
In C, a function declared with an empty parameter list accepts an
arbitrary number of arguments when being called. This is for historic
reasons; originally, C functions didn't have prototypes, as C evolved
from B, a typeless language. When prototypes were added, the original
typeless declarations were left in the language for backwards
compatibility.
Instead we should provide `void` in argument list to state
that function doesn't have arguments.
Also this warning disallow declaring type of the parameters after the
parentheses because Neovim header generator produce no declarations for
old-stlyle prototypes: it expects to find `{` after prototype.
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The old mch_libcall was removed from neovim. This is a partial
reimplementation on top of libuv. It doesn't catch exceptions (windows) nor
signals (unix) though, so it's quite a bit more prone to crashing if the
loadable library throws an exception or crashes. Still, it should be fine
for well-behaved libraries. Requested by @Shougo.
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