Can this code be simplified for adding a structure to a std::map?

Question

I have this structure:

struct S_SWAP_TALK
{
    S_TALK_INFO* pHomeTalk{};
    S_AWAY_TALK* pAwayTalk{};
};

And, I have this std::map:

std::map<UINT, S_SWAP_TALK> m_mapSwapTalks;

At the moment, I have populating the map like this:

S_SWAP_TALK sSwapTalk{};
sSwapTalk.pAwayTalk = &sAwayTalk;
m_mapSwapTalks[menuItemId] = sSwapTalk;

or

S_SWAP_TALK sSwapTalk{};
sSwapTalk.pHomeTalk = &sPTI;
m_mapSwapTalks[menuItemId] = sSwapTalk;

Is it possible to simplify this code so that I don't need to ddeclare the S_SWAP_TALK structure as a variable? Eg:

m_mapSwapTalks[menuItemId] = ...;

Answer 1

With C++20 you can write:

m_mapSwapTalks[menuItemId] = { .pAwayTalk = &sAwayTalk };
m_mapSwapTalks[menuItemId] = { .pHomeTalk = &sPTI };

With earlier versions, you can write:

m_mapSwapTalks[menuItemId] = { nullptr, &sAwayTalk };
m_mapSwapTalks[menuItemId] = { &sPTI };