C2059 语法错误“字符串”？

Question

extern "C" 
{
#endif
#include <stdint.h>
#include <limits.h>
#include "attributes.h"
}
#endif

I added extern "C" { } Then i got the C2059 string error So i tried to use #endif , now i have another 4 errors.

Error   1   error C2059: syntax error : 'string'    d:\c-sharp\c++ 
compiling\consoleapplication7\consoleapplication7\libavutil\rational.h 31 1
ConsoleApplication7

How can i fix this string error ?

Answer 1

At a guess, are you including this code from a C source file?

extern "C" { guards are only required (or understood) by C++. You can omit them from a C file, should include them in a C++ file and should guard them with a __cplusplus ifdef in a header file.

#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#include <limits.h>
#include "attributes.h"
#ifdef __cplusplus
}
#endif