How can I create a table in Lua, then add values from the C API?

Question

Here's what I have so far... It creates global table called "mod", but I can't seem to add indexes to the table...

lua_newtable(L);
lua_setglobal(L,"mod");

cxw · Accepted Answer · 2018-02-13 14:36:53Z

8

The manual says:

void lua_setfield (lua_State *L, int index, const char *k);
Does the equivalent to t[k] = v, where t is the value at the given valid index and v is the value at the top of the stack.

This function pops the value from the stack.

So, more precisely: Push whatever you want to add onto the stack, then call lua_setfield. For example:

lua_pushnumber( L, 42 );
lua_setfield( L, -2, "answer_to_life_universe_and_rest" )

This inserts the field "answer_to_life..." with value 42 into the table.

edited Feb 13, 2018 at 14:36

cxw

17.1k2 gold badges50 silver badges84 bronze badges

answered Nov 18, 2010 at 23:33

cadolphs

9,7231 gold badge30 silver badges45 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Sam H Over a year ago

nvm :P I had the lines mixed up

Collectives™ on Stack Overflow

How can I create a table in Lua, then add values from the C API?

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related