- Jul 27 Sat 2013 15:13
Toolkit.getDefaultToolkit().getImage(應該放什麼?)
- Jan 12 Sat 2013 23:47
防鎖
test
- Oct 01 Mon 2012 11:07
解決VMWARE重新安裝出現時,會出現什麼MSI Failed的問題
- Aug 15 Wed 2012 23:11
Dev C++ 寫win Socket程式設定
需為專案環境
點選 專案選項→參數→連結器
- Aug 15 Wed 2012 22:50
WS2TCPIP.H
/* ** WS2TCPIP.H - WinSock2 Extension for TCP/IP protocols ** ** This file contains TCP/IP specific information for use ** by WinSock2 compatible applications. ** ** Copyright (c) Microsoft Corporation. All rights reserved. ** ** To provide the backward compatibility, all the TCP/IP ** specific definitions that were included in the WINSOCK.H ** file are now included in WINSOCK2.H file. WS2TCPIP.H ** file includes only the definitions introduced in the ** "WinSock 2 Protocol-Specific Annex" document. ** ** Rev 0.3 Nov 13, 1995 ** Rev 0.4 Dec 15, 1996 */ #ifndef _WS2TCPIP_H_ #define _WS2TCPIP_H_ #if _MSC_VER > 1000 #pragma once #endif /* Argument structure for IP_ADD_MEMBERSHIP and IP_DROP_MEMBERSHIP */ struct ip_mreq { struct in_addr imr_multiaddr; /* IP multicast address of group */ struct in_addr imr_interface; /* local IP address of interface */ }; /* Argument structure for IP_ADD_SOURCE_MEMBERSHIP, IP_DROP_SOURCE_MEMBERSHIP, * IP_BLOCK_SOURCE, and IP_UNBLOCK_SOURCE */ struct ip_mreq_source { struct in_addr imr_multiaddr; /* IP multicast address of group */ struct in_addr imr_sourceaddr; /* IP address of source */ struct in_addr imr_interface; /* local IP address of interface */ }; /* Argument structure for SIO_{GET,SET}_MULTICAST_FILTER */ struct ip_msfilter { struct in_addr imsf_multiaddr; /* IP multicast address of group */ struct in_addr imsf_interface; /* local IP address of interface */ u_long imsf_fmode; /* filter mode - INCLUDE or EXCLUDE */ u_long imsf_numsrc; /* number of sources in src_list */ struct in_addr imsf_slist[1]; }; #define IP_MSFILTER_SIZE(numsrc) \ (sizeof(struct ip_msfilter)-sizeof(struct in_addr) + (numsrc)*sizeof(struct in_addr)) #define MCAST_INCLUDE 0 #define MCAST_EXCLUDE 1 /* TCP/IP specific Ioctl codes */ #define SIO_GET_INTERFACE_LIST _IOR('t', 127, u_long) /* New IOCTL with address size independent address array */ #define SIO_GET_INTERFACE_LIST_EX _IOR('t', 126, u_long) #define SIO_SET_MULTICAST_FILTER _IOW('t', 125, u_long) #define SIO_GET_MULTICAST_FILTER _IOW('t', 124 | IOC_IN, u_long) /* Option to use with [gs]etsockopt at the IPPROTO_IP level */ #define IP_OPTIONS 1 /* set/get IP options */ #define IP_HDRINCL 2 /* header is included with data */ #define IP_TOS 3 /* IP type of service and preced*/ #define IP_TTL 4 /* IP time to live */ #define IP_MULTICAST_IF 9 /* set/get IP multicast i/f */ #define IP_MULTICAST_TTL 10 /* set/get IP multicast ttl */ #define IP_MULTICAST_LOOP 11 /*set/get IP multicast loopback */ #define IP_ADD_MEMBERSHIP 12 /* add an IP group membership */ #define IP_DROP_MEMBERSHIP 13/* drop an IP group membership */ #define IP_DONTFRAGMENT 14 /* don't fragment IP datagrams */ #define IP_ADD_SOURCE_MEMBERSHIP 15 /* join IP group/source */ #define IP_DROP_SOURCE_MEMBERSHIP 16 /* leave IP group/source */ #define IP_BLOCK_SOURCE 17 /* block IP group/source */ #define IP_UNBLOCK_SOURCE 18 /* unblock IP group/source */ #define IP_PKTINFO 19 /* receive packet information for ipv4*/ #define IP_RECEIVE_BROADCAST 22 /* allow/block broadcast reception */ /* Option to use with [gs]etsockopt at the IPPROTO_IPV6 level */ #define IPV6_HDRINCL 2 /* Header is included with data */ #define IPV6_UNICAST_HOPS 4 /* Set/get IP unicast hop limit */ #define IPV6_MULTICAST_IF 9 /* Set/get IP multicast interface */ #define IPV6_MULTICAST_HOPS 10 /* Set/get IP multicast ttl */ #define IPV6_MULTICAST_LOOP 11 /* Set/get IP multicast loopback */ #define IPV6_ADD_MEMBERSHIP 12 /* Add an IP group membership */ #define IPV6_DROP_MEMBERSHIP 13 /* Drop an IP group membership */ #define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP #define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP #define IPV6_PKTINFO 19 /* Receive packet information for ipv6 */ #define IPV6_HOPLIMIT 21 /* Receive packet hop limit */ #define IPV6_PROTECTION_LEVEL 23 /* Set/get IPv6 protection level */ /* Values of IPV6_PROTECTION_LEVEL */ #define PROTECTION_LEVEL_UNRESTRICTED 10 /* For peer-to-peer apps */ #define PROTECTION_LEVEL_DEFAULT 20 /* Default level */ #define PROTECTION_LEVEL_RESTRICTED 30 /* For Intranet apps */ /* Option to use with [gs]etsockopt at the IPPROTO_UDP level */ #define UDP_NOCHECKSUM 1 #define UDP_CHECKSUM_COVERAGE 20 /* Set/get UDP-Lite checksum coverage */ /* Option to use with [gs]etsockopt at the IPPROTO_TCP level */ #define TCP_EXPEDITED_1122 0x0002 /* IPv6 definitions */ #ifndef s6_addr struct in6_addr { union { u_char Byte[16]; u_short Word[8]; } u; }; #define in_addr6 in6_addr /* ** Defines to match RFC 2553. */ #define _S6_un u #define _S6_u8 Byte #define s6_addr _S6_un._S6_u8 /* ** Defines for our implementation. */ #define s6_bytes u.Byte #define s6_words u.Word #endif /* Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP */ typedef struct ipv6_mreq { struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast address */ unsigned int ipv6mr_interface; /* Interface index */ } IPV6_MREQ; /* Old IPv6 socket address structure (retained for sockaddr_gen definition below) */ struct sockaddr_in6_old { short sin6_family; /* AF_INET6 */ u_short sin6_port; /* Transport level port number */ u_long sin6_flowinfo; /* IPv6 flow information */ struct in6_addr sin6_addr; /* IPv6 address */ }; /* IPv6 socket address structure, RFC 2553 */ struct sockaddr_in6 { short sin6_family; /* AF_INET6 */ u_short sin6_port; /* Transport level port number */ u_long sin6_flowinfo; /* IPv6 flow information */ struct in6_addr sin6_addr; /* IPv6 address */ u_long sin6_scope_id; /* set of interfaces for a scope */ }; typedef struct in6_addr IN6_ADDR; typedef struct in6_addr *PIN6_ADDR; typedef struct in6_addr FAR *LPIN6_ADDR; typedef struct sockaddr_in6 SOCKADDR_IN6; typedef struct sockaddr_in6 *PSOCKADDR_IN6; typedef struct sockaddr_in6 FAR *LPSOCKADDR_IN6; /* Macro that works for both IPv4 and IPv6 */ #define SS_PORT(ssp) (((struct sockaddr_in*)(ssp))->sin_port) #define IN6ADDR_ANY_INIT { 0 } #define IN6ADDR_LOOPBACK_INIT { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1 } #ifdef __cplusplus extern "C" { #endif extern const struct in6_addr in6addr_any; extern const struct in6_addr in6addr_loopback; #ifdef __cplusplus } #endif #ifdef _MSC_VER #define WS2TCPIP_INLINE __inline #else #define WS2TCPIP_INLINE extern inline /* GNU style */ #endif WS2TCPIP_INLINE int IN6_ADDR_EQUAL(const struct in6_addr *a, const struct in6_addr *b) { return (memcmp(a, b, sizeof(struct in6_addr)) == 0); } WS2TCPIP_INLINE int IN6_IS_ADDR_UNSPECIFIED(const struct in6_addr *a) { return ((a->s6_words[0] == 0) && (a->s6_words[1] == 0) && (a->s6_words[2] == 0) && (a->s6_words[3] == 0) && (a->s6_words[4] == 0) && (a->s6_words[5] == 0) && (a->s6_words[6] == 0) && (a->s6_words[7] == 0)); } WS2TCPIP_INLINE int IN6_IS_ADDR_LOOPBACK(const struct in6_addr *a) { return ((a->s6_words[0] == 0) && (a->s6_words[1] == 0) && (a->s6_words[2] == 0) && (a->s6_words[3] == 0) && (a->s6_words[4] == 0) && (a->s6_words[5] == 0) && (a->s6_words[6] == 0) && (a->s6_words[7] == 0x0100)); } WS2TCPIP_INLINE int IN6_IS_ADDR_MULTICAST(const struct in6_addr *a) { return (a->s6_bytes[0] == 0xff); } WS2TCPIP_INLINE int IN6_IS_ADDR_LINKLOCAL(const struct in6_addr *a) { return ((a->s6_bytes[0] == 0xfe) && ((a->s6_bytes[1] & 0xc0) == 0x80)); } WS2TCPIP_INLINE int IN6_IS_ADDR_SITELOCAL(const struct in6_addr *a) { return ((a->s6_bytes[0] == 0xfe) && ((a->s6_bytes[1] & 0xc0) == 0xc0)); } WS2TCPIP_INLINE int IN6_IS_ADDR_V4MAPPED(const struct in6_addr *a) { return ((a->s6_words[0] == 0) && (a->s6_words[1] == 0) && (a->s6_words[2] == 0) && (a->s6_words[3] == 0) && (a->s6_words[4] == 0) && (a->s6_words[5] == 0xffff)); } WS2TCPIP_INLINE int IN6_IS_ADDR_V4COMPAT(const struct in6_addr *a) { return ((a->s6_words[0] == 0) && (a->s6_words[1] == 0) && (a->s6_words[2] == 0) && (a->s6_words[3] == 0) && (a->s6_words[4] == 0) && (a->s6_words[5] == 0) && !((a->s6_words[6] == 0) && (a->s6_addr[14] == 0) && ((a->s6_addr[15] == 0) || (a->s6_addr[15] == 1)))); } WS2TCPIP_INLINE int IN6_IS_ADDR_MC_NODELOCAL(const struct in6_addr *a) { return IN6_IS_ADDR_MULTICAST(a) && ((a->s6_bytes[1] & 0xf) == 1); } WS2TCPIP_INLINE int IN6_IS_ADDR_MC_LINKLOCAL(const struct in6_addr *a) { return IN6_IS_ADDR_MULTICAST(a) && ((a->s6_bytes[1] & 0xf) == 2); } WS2TCPIP_INLINE int IN6_IS_ADDR_MC_SITELOCAL(const struct in6_addr *a) { return IN6_IS_ADDR_MULTICAST(a) && ((a->s6_bytes[1] & 0xf) == 5); } WS2TCPIP_INLINE int IN6_IS_ADDR_MC_ORGLOCAL(const struct in6_addr *a) { return IN6_IS_ADDR_MULTICAST(a) && ((a->s6_bytes[1] & 0xf) == 8); } WS2TCPIP_INLINE int IN6_IS_ADDR_MC_GLOBAL(const struct in6_addr *a) { return IN6_IS_ADDR_MULTICAST(a) && ((a->s6_bytes[1] & 0xf) == 0xe); } WS2TCPIP_INLINE int IN6ADDR_ISANY(const struct sockaddr_in6 *a) { return ((a->sin6_family == AF_INET6) && IN6_IS_ADDR_UNSPECIFIED(&a->sin6_addr)); } WS2TCPIP_INLINE int IN6ADDR_ISLOOPBACK(const struct sockaddr_in6 *a) { return ((a->sin6_family == AF_INET6) && IN6_IS_ADDR_LOOPBACK(&a->sin6_addr)); } WS2TCPIP_INLINE void IN6_SET_ADDR_UNSPECIFIED(struct in6_addr *a) { memset(a->s6_bytes, 0, sizeof(struct in6_addr)); } WS2TCPIP_INLINE void IN6_SET_ADDR_LOOPBACK(struct in6_addr *a) { memset(a->s6_bytes, 0, sizeof(struct in6_addr)); a->s6_bytes[15] = 1; } WS2TCPIP_INLINE void IN6ADDR_SETANY(struct sockaddr_in6 *a) { a->sin6_family = AF_INET6; a->sin6_port = 0; a->sin6_flowinfo = 0; IN6_SET_ADDR_UNSPECIFIED(&a->sin6_addr); a->sin6_scope_id = 0; } WS2TCPIP_INLINE void IN6ADDR_SETLOOPBACK(struct sockaddr_in6 *a) { a->sin6_family = AF_INET6; a->sin6_port = 0; a->sin6_flowinfo = 0; IN6_SET_ADDR_LOOPBACK(&a->sin6_addr); a->sin6_scope_id = 0; } typedef union sockaddr_gen{ struct sockaddr Address; struct sockaddr_in AddressIn; struct sockaddr_in6_old AddressIn6; } sockaddr_gen; /* Structure to keep interface specific information */ typedef struct _INTERFACE_INFO { u_long iiFlags; /* Interface flags */ sockaddr_gen iiAddress; /* Interface address */ sockaddr_gen iiBroadcastAddress; /* Broadcast address */ sockaddr_gen iiNetmask; /* Network mask */ } INTERFACE_INFO, FAR * LPINTERFACE_INFO; /* New structure that does not have dependency on the address size */ typedef struct _INTERFACE_INFO_EX { u_long iiFlags; /* Interface flags */ SOCKET_ADDRESS iiAddress; /* Interface address */ SOCKET_ADDRESS iiBroadcastAddress; /* Broadcast address */ SOCKET_ADDRESS iiNetmask; /* Network mask */ } INTERFACE_INFO_EX, FAR * LPINTERFACE_INFO_EX; /* Possible flags for the iiFlags - bitmask */ #define IFF_UP 0x00000001 /* Interface is up */ #define IFF_BROADCAST 0x00000002 /* Broadcast is supported */ #define IFF_LOOPBACK 0x00000004 /* this is loopback interface */ #define IFF_POINTTOPOINT 0x00000008 /*this is point-to-point interface*/ #define IFF_MULTICAST 0x00000010 /* multicast is supported */ // structure for IP_PKTINFO option // typedef struct in_pktinfo { IN_ADDR ipi_addr; // destination IPv4 address UINT ipi_ifindex; // received interface index } IN_PKTINFO; C_ASSERT(sizeof(IN_PKTINFO) == 8); // structure for IPV6_PKTINFO option // typedef struct in6_pktinfo { IN6_ADDR ipi6_addr; // destination IPv6 address UINT ipi6_ifindex; // received interface index } IN6_PKTINFO; C_ASSERT(sizeof(IN6_PKTINFO) == 20); /* Error codes from getaddrinfo() */ #define EAI_AGAIN WSATRY_AGAIN #define EAI_BADFLAGS WSAEINVAL #define EAI_FAIL WSANO_RECOVERY #define EAI_FAMILY WSAEAFNOSUPPORT #define EAI_MEMORY WSA_NOT_ENOUGH_MEMORY //#define EAI_NODATA WSANO_DATA #define EAI_NONAME WSAHOST_NOT_FOUND #define EAI_SERVICE WSATYPE_NOT_FOUND #define EAI_SOCKTYPE WSAESOCKTNOSUPPORT // // DCR_FIX: EAI_NODATA remove or fix // // EAI_NODATA was removed from rfc2553bis // need to find out from the authors why and // determine the error for "no records of this type" // temporarily, we'll keep #define to avoid changing // code that could change back; use NONAME // #define EAI_NODATA EAI_NONAME /* Structure used in getaddrinfo() call */ typedef struct addrinfo { int ai_flags; // AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST int ai_family; // PF_xxx int ai_socktype; // SOCK_xxx int ai_protocol; // 0 or IPPROTO_xxx for IPv4 and IPv6 size_t ai_addrlen; // Length of ai_addr char * ai_canonname; // Canonical name for nodename struct sockaddr * ai_addr; // Binary address struct addrinfo * ai_next; // Next structure in linked list } ADDRINFOA, *PADDRINFOA; typedef struct addrinfoW { int ai_flags; // AI_PASSIVE, AI_CANONNAME, AI_NUMERICHOST int ai_family; // PF_xxx int ai_socktype; // SOCK_xxx int ai_protocol; // 0 or IPPROTO_xxx for IPv4 and IPv6 size_t ai_addrlen; // Length of ai_addr PWSTR ai_canonname; // Canonical name for nodename struct sockaddr * ai_addr; // Binary address struct addrinfoW * ai_next; // Next structure in linked list } ADDRINFOW, *PADDRINFOW; // Switchable definition for GetAddrInfo() #ifdef UNICODE typedef ADDRINFOW ADDRINFOT, *PADDRINFOT; #else typedef ADDRINFOA ADDRINFOT, *PADDRINFOT; #endif // RFC standard definition for getaddrinfo() typedef ADDRINFOA ADDRINFO, FAR * LPADDRINFO; /* Flags used in "hints" argument to getaddrinfo() */ #define AI_PASSIVE 0x1 /* Socket address will be used in bind() call */ #define AI_CANONNAME 0x2 /* Return canonical name in first ai_canonname */ #define AI_NUMERICHOST 0x4 /* Nodename must be a numeric address string */ #ifdef __cplusplus extern "C" { #endif WINSOCK_API_LINKAGE int WSAAPI getaddrinfo( IN const char FAR * nodename, IN const char FAR * servname, IN const struct addrinfo FAR * hints, OUT struct addrinfo FAR * FAR * res ); #if (_WIN32_WINNT >= 0x0502) WINSOCK_API_LINKAGE int WSAAPI GetAddrInfoW( IN PCWSTR pNodeName, IN PCWSTR pServiceName, IN const ADDRINFOW * pHints, OUT PADDRINFOW * ppResult ); #define GetAddrInfoA getaddrinfo #ifdef UNICODE #define GetAddrInfo GetAddrInfoW #else #define GetAddrInfo GetAddrInfoA #endif #endif #if INCL_WINSOCK_API_TYPEDEFS typedef int (WSAAPI * LPFN_GETADDRINFO)( IN const char FAR * nodename, IN const char FAR * servname, IN const struct addrinfo FAR * hints, OUT struct addrinfo FAR * FAR * res ); typedef int (WSAAPI * LPFN_GETADDRINFOW)( IN PCWSTR pNodeName, IN PCWSTR pServiceName, IN const ADDRINFOW * pHints, OUT PADDRINFOW * ppResult ); #define LPFN_GETADDRINFOA LPFN_GETADDRINFO #ifdef UNICODE #define LPFN_GETADDRINFOT LPFN_GETADDRINFOW #else #define LPFN_GETADDRINFOT LPFN_GETADDRINFOA #endif #endif WINSOCK_API_LINKAGE void WSAAPI freeaddrinfo( IN LPADDRINFO pAddrInfo ); #if (_WIN32_WINNT >= 0x0502) WINSOCK_API_LINKAGE void WSAAPI FreeAddrInfoW( IN PADDRINFOW pAddrInfo ); #define FreeAddrInfoA freeaddrinfo #ifdef UNICODE #define FreeAddrInfo FreeAddrInfoW #else #define FreeAddrInfo FreeAddrInfoA #endif #endif #if INCL_WINSOCK_API_TYPEDEFS typedef void (WSAAPI * LPFN_FREEADDRINFO)( IN struct addrinfo FAR * ai ); typedef void (WSAAPI * LPFN_FREEADDRINFOW)( IN PADDRINFOW pAddrInfo ); #define LPFN_FREEADDRINFOA LPFN_FREEADDRINFO #ifdef UNICODE #define LPFN_FREEADDRINFOT LPFN_FREEADDRINFOW #else #define LPFN_FREEADDRINFOT LPFN_FREEADDRINFOA #endif #endif typedef int socklen_t; WINSOCK_API_LINKAGE int WSAAPI getnameinfo( IN const struct sockaddr FAR * sa, IN socklen_t salen, OUT char FAR * host, IN DWORD hostlen, OUT char FAR * serv, IN DWORD servlen, IN int flags ); #if (_WIN32_WINNT >= 0x0502) WINSOCK_API_LINKAGE INT WSAAPI GetNameInfoW( IN const SOCKADDR * pSockaddr, IN socklen_t SockaddrLength, OUT PWCHAR pNodeBuffer, IN DWORD NodeBufferSize, OUT PWCHAR pServiceBuffer, IN DWORD ServiceBufferSize, IN INT Flags ); #define GetNameInfoA getnameinfo #ifdef UNICODE #define GetNameInfo GetNameInfoW #else #define GetNameInfo GetNameInfoA #endif #endif #if INCL_WINSOCK_API_TYPEDEFS typedef int (WSAAPI * LPFN_GETNAMEINFO)( IN const struct sockaddr FAR * sa, IN socklen_t salen, OUT char FAR * host, IN DWORD hostlen, OUT char FAR * serv, IN DWORD servlen, IN int flags ); typedef INT (WSAAPI * LPFN_GETNAMEINFOW)( IN const SOCKADDR * pSockaddr, IN socklen_t SockaddrLength, OUT PWCHAR pNodeBuffer, IN DWORD NodeBufferSize, OUT PWCHAR pServiceBuffer, IN DWORD ServiceBufferSize, IN INT Flags ); #define LPFN_GETNAMEINFOA LPFN_GETNAMEINFO #ifdef UNICODE #define LPFN_GETNAMEINFOT LPFN_GETNAMEINFOW #else #define LPFN_GETNAMEINFOT LPFN_GETNAMEINFOA #endif #endif #if INCL_WINSOCK_API_PROTOTYPES #ifdef UNICODE #define gai_strerror gai_strerrorW #else #define gai_strerror gai_strerrorA #endif /* UNICODE */ // WARNING: The gai_strerror inline functions below use static buffers, // and hence are not thread-safe. We'll use buffers long enough to hold // 1k characters. Any system error messages longer than this will be // returned as empty strings. However 1k should work for the error codes // used by getaddrinfo(). #define GAI_STRERROR_BUFFER_SIZE 1024 WS2TCPIP_INLINE char * gai_strerrorA( IN int ecode) { DWORD dwMsgLen; static char buff[GAI_STRERROR_BUFFER_SIZE + 1]; dwMsgLen = FormatMessageA(FORMAT_MESSAGE_FROM_SYSTEM |FORMAT_MESSAGE_IGNORE_INSERTS |FORMAT_MESSAGE_MAX_WIDTH_MASK, NULL, ecode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPSTR)buff, GAI_STRERROR_BUFFER_SIZE, NULL); return buff; } WS2TCPIP_INLINE WCHAR * gai_strerrorW( IN int ecode ) { DWORD dwMsgLen; static WCHAR buff[GAI_STRERROR_BUFFER_SIZE + 1]; dwMsgLen = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |FORMAT_MESSAGE_IGNORE_INSERTS |FORMAT_MESSAGE_MAX_WIDTH_MASK, NULL, ecode, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), (LPWSTR)buff, GAI_STRERROR_BUFFER_SIZE, NULL); return buff; } #endif /* INCL_WINSOCK_API_PROTOTYPES */ #define NI_MAXHOST 1025 /* Max size of a fully-qualified domain name */ #define NI_MAXSERV 32 /* Max size of a service name */ // // Maximum length of address literals (potentially including a port number) // generated by any address-to-string conversion routine. This length can // be used when declaring buffers used with getnameinfo, WSAAddressToString, // inet_ntoa, etc. We just provide one define, rather than one per api, // to avoid confusion. // // The totals are derived from the following data: // 15: IPv4 address // 45: IPv6 address including embedded IPv4 address // 11: Scope Id // 2: Brackets around IPv6 address when port is present // 6: Port (including colon) // 1: Terminating null byte // #define INET_ADDRSTRLEN 22 #define INET6_ADDRSTRLEN 65 /* Flags for getnameinfo() */ #define NI_NOFQDN 0x01 /* Only return nodename portion for local hosts */ #define NI_NUMERICHOST 0x02 /* Return numeric form of the host's address */ #define NI_NAMEREQD 0x04 /* Error if the host's name not in DNS */ #define NI_NUMERICSERV 0x08 /* Return numeric form of the service (port #) */ #define NI_DGRAM 0x10 /* Service is a datagram service */ #ifdef __cplusplus } #endif // // Unless the build environment is explicitly targeting only // platforms that include built-in getaddrinfo() support, include // the backwards-compatibility version of the relevant APIs. // #if !defined(_WIN32_WINNT) || (_WIN32_WINNT <= 0x0500) #include <wspiapi.h> #endif #endif /* _WS2TCPIP_H_ */
- Aug 08 Wed 2012 00:48
【EP1】RakNet體驗
- Aug 05 Sun 2012 23:44
【EP7】LUA Library
The Mathematical Library
The
math
library comprises a standard set of mathematical functions, such as trigonometric functions (sin
, cos
, tan
, asin
, acos
, etc.), exponentiation and logarithms (exp
, log
, log10
), rounding functions (floor
, ceil
), max
, min
, plus a variable pi
. The mathematical library also defines the operator `
^
´ to work as the exponentiation operator.- Aug 02 Thu 2012 19:59
【EP4】Chapter 7. Iterators and the Generic for
7.1 – Iterators and Closures
function list_iter (t)----------------------------------factory(工廠?) local i = 0 local n = table.getn(t)--------------------------回傳總元素個數 return function ()--------------------------------無名氏函式(Closure) i = i + 1 if i <= n then return t[i] end end end
t = {10, 20, 30} iter = list_iter(t) -- creates the iterator while true do local element = iter() -- calls the iterator if element == nil then break end print(element) end
1.以上會輸出10 20 30
2.LUA的陣列好像從1開始算,不像C,陣列從0開始算。
等價寫法
t = {10, 20, 30} for element in list_iter(t) do print(element) end
這裡稍微複習一下 4.3.5 – Generic for (Generic = 通用)
-- print all values of array `a'---------------------------將a陣列的值全輸出 ipairs for i,v in ipairs(a) do print(v) end
-- print all keys of table `t' for k in pairs(t) do print(k) end----------------------將a陣列的 索引 全輸出 pairs
範例:
days = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"}
revDays = {} for i,v in ipairs(days) do revDays[v] = i end
結果會是
revDays = {["Sunday"] = 1, ["Monday"] = 2,------------索引是v,值是i。for i,v in ipairs()的寫法很容易顛倒 ["Tuesday"] = 3, ["Wednesday"] = 4, ["Thursday"] = 5, ["Friday"] = 6, ["Saturday"] = 7}
? ipairs()是回傳(值,索引) ; pairs()是回傳(索引,值)
7.2 – The Semantics of the Generic for
Semantics = 語意
- Jul 23 Mon 2012 16:19
【EP3】Chapter 6. More about Functions
- Jul 15 Sun 2012 17:55
【EP1】Lua Question