Implement a File System in C++, which would provide following API functions:

Function	Description
x_fopen	FILE* x_fopen(const char *filename, const char *mode); Functionality and parameter list like in fopen() function. MSDN: http://msdn.microsoft.com/en-us/library/yeby3zcb.aspx Instead of pointer to FILE, your function should return pointer to OSFILE a RAM structure which you designed in Part 2 for the management of a file. OSFILE should be used in all other functions instead of FILE when relevant. File names supported: character string 1 to 64 character long Only rb, wb, w+b, ab should be supported
x_fclose	int x_fclose(OSFILE *stream);
x_fread	int x_fread(void *buffer, size_t nBytes, OSFILE*stream);
x_fwrite	int x_fwrite(void *buffer, size_t nBytes, 0SFILE*stream);
x_fseek	int x_fseek(OSFILE *stream, long offset, int origin);
x_ftell	long x_ftell(OSFILE *stream);
x_remove	int x_remove(const char *path);