Makes the closure's call operator const unless the lambda is declared mutable. Core paper.
Other papers in Lambda expressions (C++11)
N2550Lambda Expressions and Closures: Wording for Monomorphic LambdasBellevue 2008N2845Remove std::reference_closureSummit 2009N2927New Wording for C++0x Lambdas (rev. 2)Frankfurt 2009N2998Reaching Scope of Lambda ExpressionsSanta Cruz 2009N3052Converting Lambdas to Function PointersPittsburgh 2010All 6 papers in Lambda expressions (C++11) →