Not using the return value of these functions are undeniably the source
of a bug. This way we allow compilers to loudly make any future misuses
evident.
src/core/network/network.cpp:112:28: error: use of undeclared identifier 'SHUT_RD'
constexpr int SD_RECEIVE = SHUT_RD;
^
src/core/network/network.cpp:113:25: error: use of undeclared identifier 'SHUT_WR'
constexpr int SD_SEND = SHUT_WR;
^
src/core/network/network.cpp:114:25: error: use of undeclared identifier 'SHUT_RDWR'
constexpr int SD_BOTH = SHUT_RDWR;
^
src/core/network/network.cpp:120:37: error: unknown type name 'in_addr'; did you mean 'in_addr_t'?
constexpr IPv4Address TranslateIPv4(in_addr addr) {
^~~~~~~
in_addr_t
/usr/include/netdb.h:66:20: note: 'in_addr_t' declared here
typedef __uint32_t in_addr_t;
^
src/core/network/network.cpp:121:27: error: member reference base type 'in_addr_t' (aka 'unsigned int') is not a structure or union
const u32 bytes = addr.s_addr;
~~~~^~~~~~~
src/core/network/network.cpp:121:15: error: variables defined in a constexpr function must be initialized
const u32 bytes = addr.s_addr;
^
src/core/network/network.cpp:126:10: error: incomplete result type 'sockaddr' in function definition
sockaddr TranslateFromSockAddrIn(SockAddrIn input) {
^
/usr/include/netdb.h:142:9: note: forward declaration of 'sockaddr'
struct sockaddr *ai_addr; /* binary address */
^
src/core/network/network.cpp:127:5: error: unknown type name 'sockaddr_in'; did you mean 'sockaddr'?
sockaddr_in result;
^~~~~~~~~~~
sockaddr
/usr/include/netdb.h:142:9: note: 'sockaddr' declared here
struct sockaddr *ai_addr; /* binary address */
^
src/core/network/network.cpp:127:17: error: variable has incomplete type 'sockaddr'
sockaddr_in result;
^
/usr/include/netdb.h:142:9: note: forward declaration of 'sockaddr'
struct sockaddr *ai_addr; /* binary address */
^
src/core/network/network.cpp:131:29: error: use of undeclared identifier 'AF_INET'
result.sin_family = AF_INET;
^
src/core/network/network.cpp:135:29: error: use of undeclared identifier 'AF_INET'
result.sin_family = AF_INET;
^
src/core/network/network.cpp:139:23: error: use of undeclared identifier 'htons'
result.sin_port = htons(input.portno);
^
src/core/network/network.cpp:143:14: error: variable has incomplete type 'sockaddr'
sockaddr addr;
^
/usr/include/netdb.h:142:9: note: forward declaration of 'sockaddr'
struct sockaddr *ai_addr; /* binary address */
^
src/core/network/network.cpp:156:1: error: unknown type name 'linger'
linger MakeLinger(bool enable, u32 linger_value) {
^
src/core/network/network.cpp:157:5: error: unknown type name 'linger'
linger value;
^
src/core/network/network.cpp:185:16: error: use of undeclared identifier 'AF_INET'
return AF_INET;
^
src/core/network/network.cpp:195:16: error: use of undeclared identifier 'SOCK_STREAM'
return SOCK_STREAM;
^
src/core/network/network.cpp:197:16: error: use of undeclared identifier 'SOCK_DGRAM'
return SOCK_DGRAM;
^
src/core/network/network.cpp:207:16: error: use of undeclared identifier 'IPPROTO_TCP'
return IPPROTO_TCP;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
We can make use of emplace()'s return value to determine whether or not
we need to perform an increment.
emplace() performs no insertion if an element already exist, so this can
eliminate a find() call.
