commit 1cdd7f16e1274e7e684155f9a426d58a5c05f936
from: Sergey Bronnikov <estetus@gmail.com>
date: Wed Jul 27 06:59:11 2022 UTC

man3: luaL_optinteger.3

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+.Dd $Mdocdate: July 26 2022 $
+.Dt LUAL_OPTINTEGER 3
+.Os
+.Sh NAME
+.Nm luaL_optinteger
+.Nd casts a number to a lua_Integer
+.Sh SYNOPSIS
+.In lauxlib.h
+.Ft lua_Integer
+.Fn luaL_optinteger "lua_State *L" "int narg" "lua_Integer d"
+.Sh DESCRIPTION
+.Fn luaL_optinteger
+if the function argument
+.Fa narg
+is a number, returns this number cast to a
+.Xr lua_Integer 3 .
+If this argument is absent or is
+.Dv nil ,
+returns
+.Fa d .
+Otherwise, raises an error.
+.Sh HISTORY
+The
+.Fn luaL_optinteger
+manual page was written by Sergey Bronnikov.