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atoq (3)
  • atoq (3) ( Русские man: Библиотечные вызовы )
  • >> atoq (3) ( Linux man: Библиотечные вызовы )
  •  

    NAME

    atoi, atol, atoll, atoq - convert a string to an integer
     
    

    SYNOPSIS

    #include <stdlib.h>
    
    int atoi(const char *nptr);
    
    long atol(const char *nptr);
    long long atoll(const char *nptr);
    long long atoq(const char *nptr);

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

    atoll(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE; or cc -std=c99  

    DESCRIPTION

    The atoi() function converts the initial portion of the string pointed to by nptr to int. The behavior is the same as

    strtol(nptr, (char **) NULL, 10);

    except that atoi() does not detect errors.

    The atol() and atoll() functions behave the same as atoi(), except that they convert the initial portion of the string to their return type of long or long long. atoq() is an obsolete name for atoll().  

    RETURN VALUE

    The converted value.  

    CONFORMING TO

    SVr4, POSIX.1-2001, 4.3BSD, C99. C89 and POSIX.1-1996 include the functions atoi() and atol() only. atoq() is a GNU extension.  

    NOTES

    The non-standard atoq() function is not present in libc 4.6.27 or glibc 2, but is present in libc5 and libc 4.7 (though only as an inline function in <stdlib.h> until libc 5.4.44). The atoll() function is present in glibc 2 since version 2.0.2, but not in libc4 or libc5.  

    SEE ALSO

    atof(3), strtod(3), strtol(3), strtoul(3)  

    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
    RETURN VALUE
    CONFORMING TO
    NOTES
    SEE ALSO
    COLOPHON


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