VC 6.0 compiler LEX file times wrong error LNK2001: unresolved external symbol

See online solution:
1. Incorrect Windows subsystem, tip:
Libcmtd. Lib (crt0. Obj) : error LNK2001: unresolved external symbol _main
Windows program to use subsystem, instead of the Console, it can be set:
[the Project] - & gt; [Settings] - & gt; Select the "Link" property page,
In the Project Options will be/subsystem: the console to/subsystem: Windows
2. The Console subsystem set error, tip:
LIBCD. Lib (wincrt0. Obj) : error LNK2001: unresolved external symbol _WinMain @ 16
Console project to use the Console subsystem, rather than Windows, set:
[the Project] - & gt; [Settings] - & gt; Select the "Link" property page,
In the Project Options will be/subsystem: Windows to/subsystem: the console

I am error 2 press 1, press 2 to error 1, the presence of Daniel infinite loop

CodePudding user response:

If you were an exe, must have the main or winmain function

CodePudding user response:

The

reference 1/f, Simple, Soft reply:

if you exe, must have the main or winmain function

Lex file with the main function

CodePudding user response:

 % option yylineno 

% {
#include  
#include  
#include  


%} 

The number [-]? [0-9] + (\ [0-9] +)? 
The name [_a - zA - Z] [_0-9 a zA - Z () \. \ *] * 
Whitespace [\ n \ t] 
St (select | select | select) 
FM (from | the from | the from) 
Wh (where | where | where) 
Gy (group [] + by | group [] + by | group [] + by) 
Oy (order [] + by | order [] + by | order + by []) 
Terminator [;] 
Nsplit [and] 
Whsplit (and | and | or | or | or | and) 
AS define (AS | | AS | AS) 
Operator [& lt; & gt;=| | (& lt;=) (& gt;=)] 
Lborder (+ \ [] [] (+) 
Rborder + \ [] [] +) 
IndId (\ [[a - zA - Z0-9 _], aiaa {1} \]) 

% % 


{indId} {
return 0; 
} 


{st} {
return 0; 
} 

{FM} {
return 0; 
} 

{wh} {
return 0; 
} 

{gy} {
return 0; 
} 

{oy} {
return 0; 
} 

{define} {
return 0; 
} 

{whsplit} {
return 0; 
} 

{operator} {
return 0; 
} 

{nsplit} {
return 0; 
} 
{lborder} {
return 0; 
} 

{rborder} {
return 0; 
} 

{name} {
return 0; 
} 

{number} {
return 0; 
} 

{terminator} {
return 0; 
} 

{whitespace}; 
% % 

Int main () 
{
Printf (" success "); 
return 0; 
}

CodePudding user response:

, 1 C/C + + Preprocessor difinitions remove _MBCS, plus _UNICODE
2. In ProjectSetting/link/output set Entry to wWinMainCRTStartup