Macros
+ BUFSIZ
Definition
#define BUFSIZ 512
Description
This macro defines the buffer size used for file I/O.
+ EOF
Definition
#define EOF (-1)
Description
This value signals the end of a file when reading in byte data.
+ WEOF
Definition
#define WEOF (wint_t)(0xFFFF)
Description
This value signals the end of a file when reading in wide-character data.
+ stdin
Definition
#define stdin (&__iob_func()[0])
Description
The macro "stdin" is replaced by a Microsoft-specific function pointer, which returns a "FILE" pointer. In practice, "stdin" is typically used to get input from the keyboard.
+ stdout
Definition
#define stdout (&__iob_func()[1])
Description
The macro "stdout" is replaced by a Microsoft-specific function pointer, which returns a "FILE" pointer. In practice, "stdout" is typically used to output to the console window.
+ stderr
Definition
#define stderr (&__iob_func()[2])
Description
The macro "stderr" is replaced by a Microsoft-specific function pointer, which returns a "FILE" pointer. In practice, "stderr" is typically used to output error messages to the console window.
Types
+ fpos_t
Definition
typedef long fpos_t;
Description
This type defines the position of the file pointer in a file. In recent versions, this type will be defined as a 64 bit int.
+ FILE
Definition
typedef struct _iobuf FILE;
Description
This type defines the file type for file input and output.
Microsoft Version
struct _iobuf {
char *_ptr;
int _cnt;
char *_base;
int _flag;
int _file;
int _charbuf;
int _bufsiz;
char *_tmpfname;
};
