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CAMLprim taking (void) as argument #5946

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vicuna opened this issue Mar 12, 2013 · 1 comment

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commented Mar 12, 2013

Original bug ID: 5946
Reporter: bvaugon
Assigned to: @damiendoligez
Status: resolved (set by @damiendoligez on 2014-07-30T12:00:36Z)
Resolution: suspended
Priority: normal
Severity: minor
Version: 4.00.1
Target version: 4.02.0+dev
Category: otherlibs
Tags: patch
Monitored by: @gasche

Bug description

Some C primitives of the OCaml otherlibs runtime are declared with "void" as parameters, and take the OCaml value () when they are called. It is not C-valid but works in practice with most C compilers.

I wrote a patch to fix it.

Steps to reproduce

To search these invalid functions, run:

$ grep -RIni CAMLprim otherlibs | grep '(void)'
otherlibs/labltk/support/cltkEvent.c:25:CAMLprim value camltk_tk_mainloop(void)
otherlibs/win32graph/draw.c:62:CAMLprim value caml_gr_current_x(void)
otherlibs/win32graph/draw.c:67:CAMLprim value caml_gr_current_y(void)
otherlibs/win32graph/draw.c:316:CAMLprim value caml_gr_get_mousex(void)
otherlibs/win32graph/draw.c:324:CAMLprim value caml_gr_get_mousey(void)
otherlibs/win32graph/open.c:42:CAMLprim value caml_gr_clear_graph(void);
otherlibs/win32graph/open.c:271:CAMLprim value caml_gr_close_graph(void)
otherlibs/win32graph/open.c:280:CAMLprim value caml_gr_clear_graph(void)
otherlibs/win32graph/open.c:294:CAMLprim value caml_gr_size_x(void)
otherlibs/win32graph/open.c:300:CAMLprim value caml_gr_size_y(void)
otherlibs/win32graph/open.c:315:CAMLprim value caml_gr_synchronize(void)
otherlibs/win32graph/open.c:340:CAMLprim value caml_gr_sigio_handler(void)

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commented Jul 30, 2014

Comment author: @damiendoligez

for win32graph: patch applied in 4.02 (commit 15033)

for labltk: report transferred to ocamlcore (issue 1412: https://forge.ocamlcore.org/tracker/index.php?func=detail&aid=1412&group_id=343&atid=1351 )

@vicuna vicuna closed this Jul 30, 2014

@vicuna vicuna added this to the 4.02.0 milestone Mar 14, 2019

@vicuna vicuna added the bug label Mar 20, 2019

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