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#include<stdlib.h>
char func_c(void);
#if defined _WIN32 || defined __CYGWIN__
#define DLL_PUBLIC __declspec(dllexport)
#else
#if defined __GNUC__
#define DLL_PUBLIC __attribute__ ((visibility("default")))
#else
#pragma message ("Compiler does not support symbol visibility.")
#define DLL_PUBLIC
#endif
#endif
char DLL_PUBLIC func_b(void) {
if(func_c() != 'c') {
exit(3);
}
return 'b';
}
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