lua_setlocal

lua_setlocal[-(0|1), +0, –]

const char *lua_setlocal (lua_State *L, const lua_Debug *ar, int n);

Sets the value of a local variable of a given activation record. It assigns the value at the top of the stack to the variable and returns its name. It also pops the value from the stack.

Returns NULL (and pops nothing) when the index is greater than the number of active local variables.

Parameters ar and n are as in function lua_getlocal.