Will C++ linker automatically inline functions (without “inline” keyword, without implementation in header)?

Question

Will the C++ linker automatically inline \"pass-through\" functions, which are NOT defined in the header, and NOT explicitly requested to be \"inlined\" through the

Answer 1

Compiled code must be able to see the content of the function for a chance of inlining. The chance of this happening more can be done though the use of unity files and LTCG.