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Justine Tunney 2020-06-15 07:18:57 -07:00
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libc/stdio/stdio.h Normal file
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#ifndef COSMOPOLITAN_LIBC_STDIO_STDIO_H_
#define COSMOPOLITAN_LIBC_STDIO_STDIO_H_
#include "libc/fmt/pflink.h"
#include "libc/runtime/symbolic.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § standard i/o ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
typedef struct FILE {
uint8_t bufmode; /* 0: _IOFBF, etc. (ignored if fd is -1) */
bool noclose; /* 1: for fake dup() */
uint32_t iomode; /* 4: O_RDONLY, etc. (ignored if fd is -1) */
int32_t state; /* 8: 0=OK, -1=EOF, >0=errno */
int fd; /* 12: ≥0=fd, -1=closed|buffer */
uint32_t beg; /* 16 */
uint32_t end; /* 20 */
uint8_t *buf; /* 24 */
size_t size; /* 32 */
int (*reader)(struct FILE *f); /* 40 */
int (*writer)(struct FILE *f); /* 48 */
} FILE;
extern FILE *stdin;
extern FILE *stdout;
extern FILE *stderr;
errno_t ferror(FILE *) paramsnonnull();
void clearerr(FILE *) paramsnonnull();
int feof(FILE *) paramsnonnull();
int getc(FILE *) paramsnonnull();
int putc(int, FILE *) paramsnonnull();
int fflush(FILE *);
int fgetc(FILE *) paramsnonnull();
int ungetc(int, FILE *) paramsnonnull();
int fileno(FILE *) paramsnonnull();
int fputc(int, FILE *) paramsnonnull();
int fputs(const char *, FILE *) paramsnonnull();
int fputws(const wchar_t *, FILE *) paramsnonnull();
char *fgets(char *, int, FILE *) paramsnonnull();
wchar_t *fgetws(wchar_t *, int, FILE *) paramsnonnull();
wint_t fputwc(wchar_t, FILE *) paramsnonnull();
wint_t putwchar(wchar_t);
wint_t getwchar(void);
wint_t fgetwc(FILE *) paramsnonnull();
int getchar(void);
int putchar(int);
int puts(const char *) paramsnonnull();
ssize_t getline(char **, size_t *, FILE *) paramsnonnull();
ssize_t getdelim(char **, size_t *, int, FILE *) paramsnonnull();
int fputhex(int, FILE *) paramsnonnull();
int fgethex(FILE *) paramsnonnull();
FILE *fopen(const char *, const char *) paramsnonnull() nodiscard;
FILE *fdopen(int, const char *) paramsnonnull() nodiscard;
FILE *fmemopen(void *, size_t, const char *) paramsnonnull((3)) nodiscard;
FILE *freopen(const char *, const char *, FILE *) paramsnonnull((2, 3));
size_t fread(void *, size_t, size_t, FILE *) paramsnonnull();
size_t fwrite(const void *, size_t, size_t, FILE *) paramsnonnull();
int freplenish(FILE *) paramsnonnull();
int fclose(FILE *);
int fclose_s(FILE **) paramsnonnull();
long fseek(FILE *, long, int) paramsnonnull();
long ftell(FILE *) paramsnonnull();
void rewind(FILE *) paramsnonnull();
int fopenflags(const char *) paramsnonnull();
unsigned favail(FILE *);
void setbuf(FILE *, char *);
void setbuffer(FILE *, char *, size_t);
int setvbuf(FILE *, char *, int, size_t);
typedef uint64_t fpos_t;
compatfn char *gets(char *) paramsnonnull();
compatfn int fgetpos(FILE *, fpos_t *) paramsnonnull();
compatfn int fsetpos(FILE *, const fpos_t *) paramsnonnull();
compatfn int64_t fseeko(FILE *, long, int) paramsnonnull();
compatfn int64_t ftello(FILE *) paramsnonnull();
int system(const char *);
int systemecho(const char *);
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § standard i/o » formatting ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
int printf(const char *, ...) printfesque(1)
paramsnonnull((1)) nothrow nocallback;
int vprintf(const char *, va_list) paramsnonnull() nothrow nocallback;
int fprintf(FILE *, const char *, ...) printfesque(2)
paramsnonnull((1, 2)) nothrow nocallback;
int vfprintf(FILE *, const char *, va_list) paramsnonnull() nothrow nocallback;
int scanf(const char *, ...) scanfesque(1);
int vscanf(const char *, va_list);
int fscanf(FILE *, const char *, ...) scanfesque(2);
int vfscanf(FILE *, const char *, va_list);
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § standard i/o » optimizations ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
int __getc_moar(FILE *);
#define putc(c, f) fputc(c, f)
#define getc(f) (f->beg + 1 < f->end ? f->buf[f->beg++] : __getc_moar(f))
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
#define printf(FMT, ...) (printf)(PFLINK(FMT), ##__VA_ARGS__)
#define vprintf(FMT, VA) (vprintf)(PFLINK(FMT), VA)
#define fprintf(F, FMT, ...) (fprintf)(F, PFLINK(FMT), ##__VA_ARGS__)
#define vfprintf(F, FMT, VA) (vfprintf)(F, PFLINK(FMT), VA)
#define vscanf(FMT, VA) (vscanf)(SFLINK(FMT), VA)
#define scanf(FMT, ...) (scanf)(SFLINK(FMT), ##__VA_ARGS__)
#define fscanf(F, FMT, ...) (fscanf)(F, SFLINK(FMT), ##__VA_ARGS__)
#define vfscanf(F, FMT, VA) (vfscanf)(F, SFLINK(FMT), VA)
#endif
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
/*───────────────────────────────────────────────────────────────────────────│─╗
│ cosmopolitan § standard i/o » definitions for assembler fans ─╬─│┼
╚────────────────────────────────────────────────────────────────────────────│*/
#define stdin SYMBOLIC(stdin)
#define stdout SYMBOLIC(stdout)
#define stderr SYMBOLIC(stderr)
#endif /* COSMOPOLITAN_LIBC_STDIO_STDIO_H_ */