Return a binary_compose function object constructed using the specified fn1 binary function, and the specified fn2 and fn3 unary functions. The returned function object is equivalent to fn1(fn2(x), fn3(x)).

Synopsis

Declared in <bslstp_exfunctional.h>

template<
    class OPERATION1,
    class OPERATION2,
    class OPERATION3>
binary_compose<OPERATION1, OPERATION2, OPERATION3>
compose2(
    OPERATION1 const& fn1,
    OPERATION2 const& fn2,
    OPERATION3 const& fn3);

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