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I effectively had this:

void fun( const char* msg )
{
  function = [msg](){
    // do something with msg
  }
}

Then call:

fun( string( "oh hi hello" ).c_str() ) ;

See what’s wrong? The string object whose char* ptr I passed to fun _dies_ immediately after the line executing call to fun runs. So the captured const char* ptr [msg] is invalid if function() runs at a later time (after return of call to fun())

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