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strncmp(3p) — Linux manual page

STRNCMP(3P)             POSIX Programmer's ManualSTRNCMP(3P)

PROLOG        top

       This manual page is part of the POSIX Programmer's Manual.  The       Linux implementation of this interface may differ (consult the       corresponding Linux manual page for details of Linux behavior), or       the interface may not be implemented on Linux.

NAME        top

       strncmp — compare part of two strings

SYNOPSIS        top

       #include <string.h>       int strncmp(const char *s1, const char *s2, size_tn);

DESCRIPTION        top

       The functionality described on this reference page is aligned with       the ISO C standard. Any conflict between the requirements       described here and the ISO C standard is unintentional. This       volume of POSIX.1‐2017 defers to the ISO C standard.       Thestrncmp() function shall compare not more thann bytes (bytes       that follow a NUL character are not compared) from the array       pointed to bys1 to the array pointed to bys2.       The sign of a non-zero return value is determined by the sign of       the difference between the values of the first pair of bytes (both       interpreted as typeunsigned char) that differ in the strings       being compared.

RETURN VALUE        top

       Upon successful completion,strncmp() shall return an integer       greater than, equal to, or less than 0, if the possibly null-       terminated array pointed to bys1 is greater than, equal to, or       less than the possibly null-terminated array pointed to bys2       respectively.

ERRORS        top

       No errors are defined.The following sections are informative.

EXAMPLES        top

       None.

APPLICATION USAGE        top

       None.

RATIONALE        top

       None.

FUTURE DIRECTIONS        top

       None.

SEE ALSO        top

strcmp(3p)       The Base Definitions volume of POSIX.1‐2017,string.h(0p)

COPYRIGHT        top

       Portions of this text are reprinted and reproduced in electronic       form from IEEE Std 1003.1-2017, Standard for Information       Technology -- Portable Operating System Interface (POSIX), The       Open Group Base Specifications Issue 7, 2018 Edition, Copyright       (C) 2018 by the Institute of Electrical and Electronics Engineers,       Inc and The Open Group.  In the event of any discrepancy between       this version and the original IEEE and The Open Group Standard,       the original IEEE and The Open Group Standard is the referee       document. The original Standard can be obtained online athttp://www.opengroup.org/unix/online.html .       Any typographical or formatting errors that appear in this page       are most likely to have been introduced during the conversion of       the source files to man page format. To report such errors, seehttps://www.kernel.org/doc/man-pages/reporting_bugs.html .IEEE/The Open Group                2017STRNCMP(3P)

Pages that refer to this page:string.h(0p), strcmp(3p)

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