このヘッダの目的

<stdio.h>は、入出力の手段を実装する。

定義済み識別子

• _IOFBF
• _IOLBF
• _IONBF
• BUFSIZ
• EOF
• FILE
• FILENAME_MAX
• FOPEN_MAX
• fpos_t
• L_tmpnam
• NULL
• SEEK_CUR
• SEEK_END
• SEEK_SET
• size_t
• stderr
• stdin
• stdout
• TMP_MAX
• int remove(const char *filename)
• int rename(const char *old, const char *new)
• FILE *tmpfile(void)
• char *tmpnam(char *s)
• int fclose(FILE *stream)
• int fflush(FILE *stream)
• FILE *fopen(const char *filename, const char *mode)
• FILE *freopen(const char *filename, const char *mode, FILE *stream)
• void setbuf(FILE *stream, char *buf)
• int setvbuf(FILE *stream, char *buf, int mode, size_t size)
• int fprintf(FILE *stream, const char *format, ...)
• int fscanf(FILE *stream, const char *format, ...)
• int printf(const char *format, ...)
• int scanf(const char *format, ...)
• int sprintf(char *s, const char *format, ...)
• int sscanf(const char *s, const char *format, ...)
• int vfprintf(FILE *stream, const char *format, va_list arg)
• int vprintf(const char *format, va_list arg)
• int vsprintf(char *s, const char *format, va_list arg)
• int fgetc(FILE *stream)
• char *fgets(char *s, int n, FILE *stream)
• int fputc(int c, FILE *stream)
• int fputs(const char *s, FILE *stream)
• int getc(FILE *stream)
• int getchar(void)
• char *gets(char *s)
• int putc(int c, FILE *stream)
• int putchar(int c)
• int puts(const char *s)
• int ungetc(int c, FILE *stream)
• size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream)
• size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
• int fgetpos(FILE *stream, fpos_t *pos)
• int fseek(FILE *stream, long int offset, int whence)
• int fsetpos(FILE *stream, const fpos_t *pos)
• long int ftell(FILE *stream)
• void rewind(FILE *stream)
• void clearerr(FILE *stream)
• int feof(FILE *stream)
• int ferror(FILE *stream)
• int perror(const char *s)

働き

それぞれのマクロ定数が展開されるものは次の通り。