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I am trying to use the function signal(int,void(*)(int)) from <csignal> to handle the floating point exception SIGFPE. I'd like to be able to print some useful diagnostics besides just a message saying "Floating point exception" or something to that effect. This means the function I pass as the handler to signal needs access to some of the data in my code. Therein lies the rub. The function must return void and accept only 1 parameter of type int . I cannot make the handler a member function of my data storage class since then the type would be void(Foo::*)(int) due to the hidden this pointer. I thought about using lambdas to try and make an anonymous function like this; void handler(int nSig, Foo data) { // do something } // snip Foo data; signal(SIGFPE, [&](int nSig)->void{handler(nSig,data);}); however because the lambda captures the variable data from outside the compiler will not let it be cast to a pointer to void(*)(int) (which is a shame as this seems like an ideal use for lambdas). I could simply make data a global variable which could then be seen in handler but I am loath to do this for obvious reasons. So my question is thus; what is the best way of mimicking anonymous functions in C++ ? Note: I would prefer a native C++ solution and not to have to use boost or equivalent.

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