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net/IPv4Address: pass reference to Cast()

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This commit is contained in:
Max Kellermann 2018-08-21 20:16:57 +02:00
parent 0642ce4795
commit adc5c5db88
1 changed files with 1 additions and 1 deletions
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2
src/net/IPv4Address.hxx
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@ -172,7 +172,7 @@ public:
* Return a downcasted reference to the address. This call is
* only legal after verifying SocketAddress::GetFamily().
*/
static constexpr const IPv4Address &Cast(const SocketAddress src) noexcept {
static constexpr const IPv4Address &Cast(const SocketAddress &src) noexcept {
/* this reinterpret_cast works because this class is
just a wrapper for struct sockaddr_in6 */
return *(const IPv4Address *)(const void *)src.GetAddress();