Standard library header <stdio.h>
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C
Concurrency support (C11)
Standard Library headers
<stdalign.h> (C11*)
<stdbit.h> (C23)
<stdbool.h> (C99*)
<stdckdint.h> (C23)
<stdint.h> (C99)
<stdio.h>
<stdmchar.h> (C29)
<stdnoreturn.h> (C11*)
<tgmath.h> (C99)
<threads.h> (C11)
<uchar.h> (C11)
<wchar.h> (C95)
<wctype.h> (C95)
This header is part of input/output library, providing generic file operation support and supplies I/O functions that work with narrow characters.
This section is incomplete
Reason: 7.23 Input/output <stdio.h>; copy/share subset of c/io
Reason: 7.23 Input/output <stdio.h>; copy/share subset of c/io
[edit] Synopsis
#define __STDC_VERSION_STDIO_H__ 202311L typedef /* see description */ FILE ; typedef /* see description */ size_t ; typedef /* see description */ FILE ; typedef /* see description */ fpos_t ; #define NULL /* see description */ #define _IOFBF /* see description */ #define _IOLBF /* see description */ #define _IONBF /* see description */ #define BUFSIZ /* see description */ #define EOF /* see description */ #define FOPEN_MAX /* see description */ #define FILENAME_MAX /* see description */ #define L_tmpnam /* see description */ #define SEEK_CUR /* see description */ #define SEEK_END /* see description */ #define SEEK_SET /* see description */ #define TMP_MAX /* see description */ #define stdin /* see description */ #define stdout /* see description */ #define stderr /* see description */ #define _PRINTF_NAN_LEN_MAX /* see description */ 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* restrict filename, const char* restrict mode); FILE * freopen (const char* restrict filename, const char* restrict mode, FILE * restrict stream); void setbuf (FILE * restrict stream, char* restrict buf); int setvbuf (FILE * restrict stream, char* restrict buf, int mode, size_t size); int printf (const char* restrict format, ...); int scanf (const char* restrict format, ...); int snprintf (char* restrict s, size_t n, const char* restrict format, ...); int sprintf (char* restrict s, const char* restrict format, ...); int sscanf (const char* restrict s, const char* restrict format, ...); int vfprintf (FILE * restrict stream, const char* restrict format, va_list arg); int vfscanf (FILE * restrict stream, const char* restrict format, va_list arg); int vprintf (const char* restrict format, va_list arg); int vscanf (const char* restrict format, va_list arg); int vsnprintf (char* restrict s, size_t n, const char* restrict format, va_list arg); int vsprintf (char* restrict s, const char* restrict format, va_list arg); int vsscanf (const char* restrict s, const char* restrict format, va_list arg); int fgetc (FILE * stream); char* fgets (char* restrict s, int n, FILE * restrict stream); int fputc (int c, FILE * stream); int fputs (const char* restrict s, FILE * restrict stream); int getc (FILE * stream); int getchar (void); 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* restrict ptr, size_t size, size_t nmemb, FILE * restrict stream); size_t fwrite (const void* restrict ptr, size_t size, size_t nmemb, FILE * restrict stream); int fgetpos (FILE * restrict stream, fpos_t * restrict 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); void perror (const char* s); int fprintf (FILE * restrict stream, const char* restrict format, ...); int fscanf (FILE * restrict stream, const char* restrict format, ...);
Only if the implementation defines __STDC_LIB_EXT1__ and additionally the user
code defines __STDC_WANT_LIB_EXT1__ before any inclusion of <stdio.h>
:
#if defined(__STDC_WANT_LIB_EXT1__) #define L_tmpnam_s /* see description */ #define TMP_MAX_S /* see description */ typedef /* see description */ errno_t; typedef /* see description */ rsize_t; errno_t tmpfile_s(FILE * restrict* restrict streamptr); errno_t tmpnam_s(char* s, rsize_t maxsize); errno_t fopen_s(FILE * restrict* restrict streamptr, const char* restrict filename, const char* restrict mode); errno_t freopen_s(FILE * restrict* restrict newstreamptr, const char* restrict filename, const char* restrict mode, FILE * restrict stream); int fprintf_s(FILE * restrict stream, const char* restrict format, ...); int fscanf_s(FILE * restrict stream, const char* restrict format, ...); int printf_s(const char* restrict format, ...); int scanf_s(const char* restrict format, ...); int snprintf_s(char* restrict s, rsize_t n, const char* restrict format, ...); int sprintf_s(char* restrict s, rsize_t n, const char* restrict format, ...); int sscanf_s(const char* restrict s, const char* restrict format, ...); int vfprintf_s(FILE * restrict stream, const char* restrict format, va_list arg); int vfscanf_s(FILE * restrict stream, const char* restrict format, va_list arg); int vprintf_s(const char* restrict format, va_list arg); int vscanf_s(const char* restrict format, va_list arg); int vsnprintf_s(char* restrict s, rsize_t n, const char* restrict format, va_list arg); int vsprintf_s(char* restrict s, rsize_t n, const char* restrict format, va_list arg); int vsscanf_s(const char* restrict s, const char* restrict format, va_list arg); char* gets_s(char* s, rsize_t n); #endif