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#pragma once
#define _LAMBDA_ARG1 auto a
#define _LAMBDA_ARG2 auto a, auto b
#define _LAMBDA_ARG3 auto a, auto b, auto c
#define _LAMBDA_PARAM1 a
#define _LAMBDA_PARAM2 a, b
#define _LAMBDA_PARAM3 a, b, c
// A macro to create a lambda function around a (usually std) function,
// where the template arguments aren't properly deduced.
// Up to 3 arguments are supported.
#define LAMBDA(f, n) [](_LAMBDA_ARG##n) { return f(_LAMBDA_PARAM##n); }
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