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putchar_unlocked (3)
  • putchar_unlocked (3) ( FreeBSD man: Библиотечные вызовы )
  • putchar_unlocked (3) ( Русские man: Библиотечные вызовы )
  • >> putchar_unlocked (3) ( Linux man: Библиотечные вызовы )
  • putchar_unlocked (3) ( POSIX man: Библиотечные вызовы )
  •  

    NAME

    getc_unlocked, getchar_unlocked, putc_unlocked,
    putchar_unlocked - non-locking stdio functions
     
    

    SYNOPSIS

    #include <stdio.h>
    
    int getc_unlocked(FILE *stream);
    int getchar_unlocked(void);
    int putc_unlocked(int c, FILE *stream);
    int putchar_unlocked(int c);
    
    void clearerr_unlocked(FILE *stream);
    int feof_unlocked(FILE *stream);
    int ferror_unlocked(FILE *stream);
    int fileno_unlocked(FILE *stream);
    int fflush_unlocked(FILE *stream);
    int fgetc_unlocked(FILE *stream);
    int fputc_unlocked(int c, FILE *stream);
    size_t fread_unlocked(void *ptr, size_t size, size_t n,
                          FILE *stream);
    size_t fwrite_unlocked(const void *ptr, size_t size, size_t n,
                          FILE *stream);
    
    char *fgets_unlocked(char *s, int n, FILE *stream);
    int fputs_unlocked(const char *s, FILE *stream);
    
    #include <wchar.h>
    
    wint_t getwc_unlocked(FILE *stream);
    wint_t getwchar_unlocked(void);
    wint_t fgetwc_unlocked(FILE *stream);
    wint_t fputwc_unlocked(wchar_t wc, FILE *stream);
    wint_t putwc_unlocked(wchar_t wc, FILE *stream);
    wint_t putwchar_unlocked(wchar_t wc);
    wchar_t *fgetws_unlocked(wchar_t *ws, int n, FILE *stream);
    int fputws_unlocked(const wchar_t *ws, FILE *stream);
    

    Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

    getc_unlocked(), getchar_unlocked(), putc_unlocked(), putchar_unlocked(): _POSIX_C_SOURCE >= 1 || _XOPEN_SOURCE || _POSIX_SOURCE || _BSD_SOURCE || _SVID_SOURCE

    clearerr_unlocked(), feof_unlocked(), ferror_unlocked(), fileno_unlocked(), fflush_unlocked(), fgetc_unlocked(), fputc_unlocked(), fread_unlocked(), fwrite_unlocked(): _BSD_SOURCE || _SVID_SOURCE

    fgets_unlocked(), fputs_unlocked(), getwc_unlocked(), getwchar_unlocked(), fgetwc_unlocked(), fputwc_unlocked(), putwchar_unlocked(), fgetws_unlocked(), fputws_unlocked(): _GNU_SOURCE  

    DESCRIPTION

    Each of these functions has the same behavior as its counterpart without the "_unlocked" suffix, except that they do not use locking (they do not set locks themselves, and do not test for the presence of locks set by others) and hence are thread-unsafe. See flockfile(3).  

    CONFORMING TO

    The four functions getc_unlocked(), getchar_unlocked(), putc_unlocked(), putchar_unlocked() are in POSIX.1-2001.

    The non-standard *_unlocked() variants occur on a few Unix systems, and are available in recent glibc. They should probably not be used.  

    SEE ALSO

    flockfile(3), stdio(3), feature_test_macros(7)  

    COLOPHON

    This page is part of release 3.14 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    CONFORMING TO
    SEE ALSO
    COLOPHON


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