Error Lnk2019 Unresolved External Symbol C Programming
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Error Lnk2019 Unresolved External Symbol Winmain@16 Referenced In Function ___tmaincrtstartup
programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Why do I get: unresolved external symbol Error - C [closed] up vote 0 down vote favorite 2 I try
Error Lnk2019 Unresolved External Symbol Visual Studio 2010
to compile this code: static uint64_t push(int fd, SOCKET sock, SSL *ssl, const char *buf, uint64_t len) { uint64_t sent; int n, k; sent = 0; while (sent < len) { /* How many bytes we send in this iteration */ k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent); if (ssl != NULL) { n = SSL_write(ssl, buf + sent, k); } else if (fd != -1) { error lnk2019 unresolved external symbol public __thiscall referenced in function _main n = write(fd, buf + sent, k); } else { n = send(sock, buf + sent, k, 0); } if (n < 0) break; sent += n; } return (sent); } And I get this linker error: Linking... mongoose.obj : error LNK2019: unresolved external symbol _send@16 referenced in function _push What am I missing? It must be some lib or something. I just don't remember what I need to add to my linking. external symbol share|improve this question edited Feb 26 '14 at 21:50 CaptainBli 2,06111641 asked Apr 27 '09 at 21:27 T.T.T. 8,5592890145 closed as not a real question by Will Feb 14 '13 at 16:00 It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question. add a comment| 3 Answers 3 active oldest votes up vote 5 down vote accepted The problem is that the linker can't find the send() function. You've included the proper header files, so the compiler is ok, but you're not linking with the proper static libraries. Open up your project
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Error Lnk2019 Unresolved External Symbol Void __cdecl
workings and policies of this site About Us Learn more about Stack error lnk2019 unresolved external symbol main referenced in function __tmaincrtstartup Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs error 2 error lnk2019 unresolved external symbol Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; http://stackoverflow.com/questions/795361/why-do-i-get-unresolved-external-symbol-error-c it only takes a minute: Sign up Visual Studio C programming: Unresolved external symbol, but visible in watch window up vote -1 down vote favorite 1 In my main.c , i have : int myvar[4] = {0,1,2,3}; int main(int argc, char *argv[]) { ................... } When I try to access myvar in another file as below: extern int myvar[4]; http://stackoverflow.com/questions/23995014/visual-studio-c-programming-unresolved-external-symbol-but-visible-in-watch-wi if (myvar[0] == 1) do something; When I build this (after cleaning the project), errors "LNK2001: unresolved external symbol _myvar" and "fatal error LNK1120: 1 unresolved externals" are observed. But if I comment the 'if' statement alone, then the solution builds fine and I can observe the correct values for myvar in the watch window in debug mode. I am confused regarding why this is happening. Any help would be highly appreciated! c visual-studio linker extern share|improve this question edited Jun 2 '14 at 13:08 asked Jun 2 '14 at 12:52 user3698698 62 different file in the same linking unit or different linking unit (i.e. two different libs)? –eckes Jun 2 '14 at 12:58 two different libs @eckes –user3698698 Jun 2 '14 at 13:02 I want to know how your "build" makes it to the link-phase in the first place since (a) you cannot assign a fixed array in C, and (b) the declaration for main() is non-standard (second parameter is an array of pointer-to-poiner-to char ??), (c) if {myvar[0] ==
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