net/IPv[46]Address: add cast to void* to fix GCC9 build failure

Fixes: src/net/IPv4Address.hxx: In member function 'constexpr IPv4Address::operator SocketAddress() const': src/net/IPv4Address.hxx:171:24: error: a reinterpret_cast is not a constant expression 171 | return SocketAddress((const struct sockaddr *)&address, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ src/net/IPv6Address.hxx: In member function 'constexpr IPv6Address::operator SocketAddress() const': src/net/IPv6Address.hxx:138:24: error: a reinterpret_cast is not a constant expression 138 | return SocketAddress((const struct sockaddr *)&address, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Closes https://github.com/MusicPlayerDaemon/MPD/issues/522

net/IPv[46]Address: add cast to void* to fix GCC9 build failure
37b54179 · Max Kellermann · 51182676 · 37b54179 · 37b54179 · 37b54179
Commit 37b54179 authored Apr 03, 2019 by Max Kellermann
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Showing with 3 additions and 2 deletions

NEWS NEWS +1 -0

IPv4Address.hxx src/net/IPv4Address.hxx +1 -1

IPv6Address.hxx src/net/IPv6Address.hxx +1 -1

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--- a/NEWS
+++ b/NEWS
 ver 0.21.8 (not yet released)
+* fix build failure with GCC 9

 ver 0.21.7 (2019/04/03)
 * input

--- a/src/net/IPv4Address.hxx
+++ b/src/net/IPv4Address.hxx
@@ -168,7 +168,7 @@ public:
 	}

 	constexpr operator SocketAddress() const noexcept {
-		return SocketAddress((const struct sockaddr *)&address,
+		return SocketAddress((const struct sockaddr *)(const void *)&address,
 				     sizeof(address));
 	}


--- a/src/net/IPv6Address.hxx
+++ b/src/net/IPv6Address.hxx
@@ -135,7 +135,7 @@ public:
 	}

 	constexpr operator SocketAddress() const noexcept {
-		return SocketAddress((const struct sockaddr *)&address,
+		return SocketAddress((const struct sockaddr *)(const void *)&address,
 				     sizeof(address));
 	}