*: add "noexcept" to many, many function prototypes

This eliminates some overhead, because the compiler doesn't need to
consider these functions throwing.

src/net/AllocatedSocketAddress.cxx

@@ -50,7 +50,7 @@ AllocatedSocketAddress::operator=(SocketAddress src)
 }
 
 void
-AllocatedSocketAddress::SetSize(size_type new_size)
+AllocatedSocketAddress::SetSize(size_type new_size) noexcept
 {
 	if (size == new_size)
 		return;
@@ -63,7 +63,7 @@ AllocatedSocketAddress::SetSize(size_type new_size)
 #ifdef HAVE_UN
 
 void
-AllocatedSocketAddress::SetLocal(const char *path)
+AllocatedSocketAddress::SetLocal(const char *path) noexcept
 {
 	const bool is_abstract = *path == '@';
 

src/net/AllocatedSocketAddress.hxx

@@ -140,11 +140,11 @@ public:
 	 * begins with a '@', then the rest specifies an "abstract" local
 	 * address.
 	 */
-	void SetLocal(const char *path);
+	void SetLocal(const char *path) noexcept;
 #endif
 
 private:
-	void SetSize(size_type new_size);
+	void SetSize(size_type new_size) noexcept;
 };
 
 #endif

src/net/SocketAddress.cxx

@@ -32,7 +32,7 @@
 #include <string.h>
 
 bool
-SocketAddress::operator==(SocketAddress other) const
+SocketAddress::operator==(SocketAddress other) const noexcept
 {
 	return size == other.size && memcmp(address, other.address, size) == 0;
 }

src/net/SocketAddress.hxx

@@ -93,9 +93,9 @@ public:
 	}
 
 	gcc_pure
-	bool operator==(const SocketAddress other) const;
+	bool operator==(const SocketAddress other) const noexcept;
 
-	bool operator!=(const SocketAddress other) const {
+	bool operator!=(const SocketAddress other) const noexcept {
 		return !(*this == other);
 	}
 };

src/net/SocketError.cxx

@@ -25,7 +25,7 @@
 
 #ifdef WIN32
 
-SocketErrorMessage::SocketErrorMessage(socket_error_t code)
+SocketErrorMessage::SocketErrorMessage(socket_error_t code) noexcept
 {
 #ifdef _UNICODE
 	wchar_t buffer[ARRAY_SIZE(msg)];
@@ -56,7 +56,7 @@ SocketErrorMessage::SocketErrorMessage(socket_error_t code)
 
 #else
 
-SocketErrorMessage::SocketErrorMessage(socket_error_t code)
+SocketErrorMessage::SocketErrorMessage(socket_error_t code) noexcept
 	:msg(strerror(code)) {}
 
 #endif

src/net/SocketError.hxx

@@ -33,7 +33,7 @@ typedef int socket_error_t;
 
 gcc_pure
 static inline socket_error_t
-GetSocketError()
+GetSocketError() noexcept
 {
 #ifdef WIN32
 	return WSAGetLastError();
@@ -44,7 +44,7 @@ GetSocketError()
 
 gcc_const
 static inline bool
-IsSocketErrorAgain(socket_error_t code)
+IsSocketErrorAgain(socket_error_t code) noexcept
 {
 #ifdef WIN32
 	return code == WSAEINPROGRESS;
@@ -55,7 +55,7 @@ IsSocketErrorAgain(socket_error_t code)
 
 gcc_const
 static inline bool
-IsSocketErrorInterruped(socket_error_t code)
+IsSocketErrorInterruped(socket_error_t code) noexcept
 {
 #ifdef WIN32
 	return code == WSAEINTR;
@@ -66,7 +66,7 @@ IsSocketErrorInterruped(socket_error_t code)
 
 gcc_const
 static inline bool
-IsSocketErrorClosed(socket_error_t code)
+IsSocketErrorClosed(socket_error_t code) noexcept
 {
 #ifdef WIN32
 	return code == WSAECONNRESET;
@@ -88,11 +88,7 @@ class SocketErrorMessage {
 #endif
 
 public:
-#ifdef WIN32
-	explicit SocketErrorMessage(socket_error_t code=GetSocketError());
-#else
-	explicit SocketErrorMessage(socket_error_t code=GetSocketError());
-#endif
+	explicit SocketErrorMessage(socket_error_t code=GetSocketError()) noexcept;
 
 	operator const char *() const {
 		return msg;
@@ -101,7 +97,7 @@ public:
 
 gcc_const
 static inline std::system_error
-MakeSocketError(socket_error_t code, const char *msg)
+MakeSocketError(socket_error_t code, const char *msg) noexcept
 {
 #ifdef WIN32
 	return MakeLastError(code, msg);
@@ -112,7 +108,7 @@ MakeSocketError(socket_error_t code, const char *msg)
 
 gcc_pure
 static inline std::system_error
-MakeSocketError(const char *msg)
+MakeSocketError(const char *msg) noexcept
 {
 	return MakeSocketError(GetSocketError(), msg);
 }

src/net/StaticSocketAddress.cxx

@@ -35,7 +35,7 @@
 #include <string.h>
 
 StaticSocketAddress &
-StaticSocketAddress::operator=(SocketAddress other)
+StaticSocketAddress::operator=(SocketAddress other) noexcept
 {
 	size = std::min(other.GetSize(), GetCapacity());
 	memcpy(&address, other.GetAddress(), size);

src/net/StaticSocketAddress.hxx

@@ -49,7 +49,7 @@ private:
 public:
 	StaticSocketAddress() = default;
 
-	StaticSocketAddress &operator=(SocketAddress other);
+	StaticSocketAddress &operator=(SocketAddress other) noexcept;
 
 	operator SocketAddress() const {
 		return SocketAddress(reinterpret_cast<const struct sockaddr *>(&address),

src/net/ToString.cxx

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2015 Max Kellermann <max.kellermann@gmail.com>
+ * Copyright (C) 2011-2017 Max Kellermann <max.kellermann@gmail.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -53,7 +53,7 @@
 #ifdef HAVE_UN
 
 static std::string
-LocalAddressToString(const struct sockaddr_un &s_un, size_t size)
+LocalAddressToString(const struct sockaddr_un &s_un, size_t size) noexcept
 {
 	const size_t prefix_size = (size_t)
 		((struct sockaddr_un *)nullptr)->sun_path;
@@ -83,7 +83,7 @@ LocalAddressToString(const struct sockaddr_un &s_un, size_t size)
 
 gcc_pure
 static bool
-IsV4Mapped(SocketAddress address)
+IsV4Mapped(SocketAddress address) noexcept
 {
 	if (address.GetFamily() != AF_INET6)
 		return false;
@@ -96,7 +96,7 @@ IsV4Mapped(SocketAddress address)
  * Convert "::ffff:127.0.0.1" to "127.0.0.1".
  */
 static SocketAddress
-UnmapV4(SocketAddress src, struct sockaddr_in &buffer)
+UnmapV4(SocketAddress src, struct sockaddr_in &buffer) noexcept
 {
 	assert(IsV4Mapped(src));
 
@@ -113,7 +113,7 @@ UnmapV4(SocketAddress src, struct sockaddr_in &buffer)
 #endif
 
 std::string
-ToString(SocketAddress address)
+ToString(SocketAddress address) noexcept
 {
 #ifdef HAVE_UN
 	if (address.GetFamily() == AF_UNIX)

src/net/ToString.hxx

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2011-2015 Max Kellermann <max.kellermann@gmail.com>
+ * Copyright (C) 2011-2017 Max Kellermann <max.kellermann@gmail.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -43,6 +43,6 @@ class SocketAddress;
  */
 gcc_pure
 std::string
-ToString(SocketAddress address);
+ToString(SocketAddress address) noexcept;
 
 #endif