Ошибка компиляции в проекте C ++ с кодами C и C ++ - PullRequest
8 голосов
/ 01 марта 2012

Я создал проект C ++, в котором я использую коды C и C ++ и у меня есть некоторые проблемы с заголовками ... ОК, у меня есть 3 кода:

basicOCR.cpp

#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>

#include "preprocessing.h"
#include "basicOCR.h"

preprocessing.c

#include <stdio.h>
#include <ctype.h>
#include <math.h>

#include "preprocessing.h"

main.c

#include <stdio.h>
#include <ctype.h>

#include "basicOCR.h"

и мои 2 собственных заголовочных файла:

basicOCR.h

#include <stdio.h>
#include <ctype.h>

preprocessing.h

#include <stdio.h>
#include <ctype.h>

Всякий раз, когда я пытаюсь скомпилировать проект,он без проблем компилирует basicOCR.cpp , но preprocessing.c и main.c дают мне синтаксические ошибки в cstdlib и xstddef .Я знаю, что это библиотеки C ++.Я прочитал это Как смешать C и C ++

и перепробовал почти все, но это не сработало.

1>  preprocessing.c
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(19): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(19): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(19): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2061: syntax error : identifier 'abs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2061: syntax error : identifier 'atexit'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2061: syntax error : identifier 'atof'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2061: syntax error : identifier 'atoi'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2061: syntax error : identifier 'atol'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2061: syntax error : identifier 'bsearch'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2061: syntax error : identifier 'calloc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2061: syntax error : identifier 'div'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2061: syntax error : identifier 'exit'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2061: syntax error : identifier 'free'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2061: syntax error : identifier 'getenv'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2061: syntax error : identifier 'labs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2061: syntax error : identifier 'ldiv'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2061: syntax error : identifier 'malloc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2061: syntax error : identifier 'mblen'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2061: syntax error : identifier 'mbstowcs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2061: syntax error : identifier 'mbtowc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2061: syntax error : identifier 'qsort'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2061: syntax error : identifier 'rand'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2061: syntax error : identifier 'realloc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2061: syntax error : identifier 'srand'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2061: syntax error : identifier 'strtod'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2061: syntax error : identifier 'strtol'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2061: syntax error : identifier 'strtoul'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2061: syntax error : identifier 'system'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2061: syntax error : identifier 'wcstombs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2061: syntax error : identifier 'wctomb'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(32): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(34): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(34): error C2061: syntax error : identifier 'lldiv'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(34): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstddef(18): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstddef(18): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(78): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(78): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(87): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(87): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(98): error C2061: syntax error : identifier 'tr1'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(98): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(98): error C2449: found '{' at file scope (missing function header?)
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(101): error C2059: syntax error : '}'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(125): error C2143: syntax error : missing '{' before ':'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(125): error C2059: syntax error : ':'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(132): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(132): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(141): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(141): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\eh.h(27): fatal error C1189: #error :  "eh.h is only for C++!"
1>  main.c
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(19): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(19): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(19): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2061: syntax error : identifier 'abs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2061: syntax error : identifier 'atexit'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(21): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2061: syntax error : identifier 'atof'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2061: syntax error : identifier 'atoi'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2061: syntax error : identifier 'atol'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(22): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2061: syntax error : identifier 'bsearch'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2061: syntax error : identifier 'calloc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2061: syntax error : identifier 'div'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(23): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2061: syntax error : identifier 'exit'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2061: syntax error : identifier 'free'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2061: syntax error : identifier 'getenv'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(24): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2061: syntax error : identifier 'labs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2061: syntax error : identifier 'ldiv'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2061: syntax error : identifier 'malloc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(25): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2061: syntax error : identifier 'mblen'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2061: syntax error : identifier 'mbstowcs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2061: syntax error : identifier 'mbtowc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(26): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2061: syntax error : identifier 'qsort'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2061: syntax error : identifier 'rand'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2061: syntax error : identifier 'realloc'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(27): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2061: syntax error : identifier 'srand'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2061: syntax error : identifier 'strtod'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2061: syntax error : identifier 'strtol'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(28): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2061: syntax error : identifier 'strtoul'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2061: syntax error : identifier 'system'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(29): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2061: syntax error : identifier 'wcstombs'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2061: syntax error : identifier 'wctomb'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(30): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(32): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(34): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(34): error C2061: syntax error : identifier 'lldiv'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstdlib(34): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstddef(18): error C2054: expected '(' to follow 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\cstddef(18): error C2061: syntax error : identifier 'using'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(78): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(78): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(87): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(87): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(98): error C2061: syntax error : identifier 'tr1'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(98): error C2059: syntax error : ';'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(98): error C2449: found '{' at file scope (missing function header?)
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(101): error C2059: syntax error : '}'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(125): error C2143: syntax error : missing '{' before ':'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(125): error C2059: syntax error : ':'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(132): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(132): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(141): error C2143: syntax error : missing '{' before '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstddef(141): error C2059: syntax error : '<'
1>C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\eh.h(27): fatal error C1189: #error :  "eh.h is only for C++!"

Ответы [ 2 ]

20 голосов
/ 03 марта 2012

Я понял это.Чтобы решить эту проблему, нужно было щелкнуть правой кнопкой мыши каждый код C и Свойства> C / C ++> Дополнительно> Compile As и установить флажок Compile as C ++ Code (/ TP)

1 голос
/ 01 марта 2012

Похоже, что vc использует заголовки c ++ для кода c.

Это не отвечает на вопрос, но почему бы просто не использовать C ++?Единственный раз, когда вам нужен C, это когда вы хотите быть совместимыми с разными версиями разных компиляторов, что происходит при создании архитектуры подключаемого модуля.В этом случае вы объявляете прототипы подключаемых модулей в заголовке «SDK» следующим образом:

#ifndef __SDK_H
#define __SDK_H

#ifdef __cplusplus
extern "C"
    {
#endif
    __declspec(dllexport) return_type calling_convention function_name(parameters);

#ifdef __cplusplus
    }
#endif

#endif

Затем вы можете скомпилировать свой plugin.c, который должен содержать следующее:

#include "sdk.h"

return_type function_name(parameters)
     {
     /*Do stuff here*/
     }
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