Use lambda as default function pointer, is this a bug of MSVC compiler?

Question

void* ff2(int (*address)() = [] {static int x = 0; return ++x; })
{
    return address;
}

These codes above will not compile in VS2019 (/std:c++latest) .

But the following codes will compile without errors. It is a bug of compiler?

using F = int (*)();
void* ff( F address = [] {static int x = 0; return ++x; } )
{
    return address;
}

Answer 1

Hi,

Tested the snippet below and it compiles. You could report the problem to Developer Community and post link here.

void* ff2(int temp,int (*address)() = [] {static int x = 0; return ++x; })
{
    return address;
}

Best regards,

Minxin Yu

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