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Hi there, I'm trying to reuse/redo a simple C++/LUA wrapper I wrote with Lua 4.0
My first problem is to be able to load and run a test script 

I've replaced the old dofile with :
// Test res
res=lua_pcall(m_luaState, 0,0,0);
// Test res

The test script is a single line :
io.write("Hello from LUA")

Previously it was
print("Hello from LUA")

Both of them return an error :
 attempt to index global `io' (a nil value)
 attempt to index global `print' (a nil value)

I've tried to find a hint in the manual but may be I've missed it ?

Do I need to include a package to be able to output anything ??