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commit a901c505abffd13e96a7d304393bb759aad87e59
parent 0ddc0f47bd2a03678e1afbc384550aecb55a318f
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date:   Wed, 29 Apr 2020 16:36:58 -0300

Fixed warning about casts between function pointers

gcc now warns (with -Wextra) about casts between pointers to different
function types. The type 'void(*)(void)' works as a 'void*' for function
pointers, cleaning the warning.

Diffstat:
Mloadlib.c | 9++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/loadlib.c b/loadlib.c @@ -68,6 +68,13 @@ static const char *const CLIBS = "_CLIBS"; /* +** Special type equivalent to '(void*)' for functions in gcc +** (to supress warnings when converting function pointers) +*/ +typedef void (*voidf)(void); + + +/* ** system-dependent functions */ @@ -206,7 +213,7 @@ static void *lsys_load (lua_State *L, const char *path, int seeglb) { static lua_CFunction lsys_sym (lua_State *L, void *lib, const char *sym) { - lua_CFunction f = (lua_CFunction)GetProcAddress((HMODULE)lib, sym); + lua_CFunction f = (lua_CFunction)(voidf)GetProcAddress((HMODULE)lib, sym); if (f == NULL) pusherror(L); return f; }