size_t(3type)                                                    size_t(3type)

NAME
       size_t, ssize_t - count of bytes

LIBRARY
       Standard C library (libc)

SYNOPSIS
       #include <stddef.h>

       typedef /* ... */  size_t;

       #include <sys/types.h>

       typedef /* ... */  ssize_t;

DESCRIPTION
       size_t Used for a count of bytes.  It is the result of the sizeof() op-
              erator.  It is an unsigned integer type capable of storing  val-
              ues in the range [0, SIZE_MAX].

       ssize_t
              Used  for  a  count  of  bytes  or an error indication.  It is a
              signed integer type capable of storing values al  least  in  the
              range [-1, SSIZE_MAX].

   Use with printf(3) and scanf(3)
       size_t The  length  modifier  for  size_t  for  the  printf(3)  and the
              scanf(3) families of functions is z, resulting commonly  in  %zu
              or %zx for printing size_t values.

       ssize_t
              glibc  and  most other implementations provide a length modifier
              for ssize_t for the printf(3) and the scanf(3) families of func-
              tions, which is z; resulting commonly in %zd or %zi for printing
              ssize_t values.  Although z works for ssize_t on most  implemen-
              tations,  portable POSIX programs should avoid using it--for ex-
              ample, by converting the value to intmax_t and using its  length
              modifier (j).

VERSIONS
       size_t <aio.h>,  <glob.h>,  <grp.h>,  <iconv.h>,  <mqueue.h>,  <pwd.h>,
              <signal.h>, and <sys/socket.h> define size_t since POSIX.1-2008.

       ssize_t
              <aio.h>, <mqueue.h>, and  <sys/socket.h>  define  ssize_t  since
              POSIX.1-2008.

STANDARDS
       size_t: C99 and later; POSIX.1-2001 and later.
       ssize_t: POSIX.1-2001 and later.

NOTES
       size_t The  following  headers  also provide size_t: <aio.h>, <glob.h>,
              <grp.h>, <iconv.h>, <monetary.h>, <mqueue.h>, <ndbm.h>, <pwd.h>,
              <regex.h>,   <search.h>,   <signal.h>,   <stdio.h>,  <stdlib.h>,
              <string.h>, <strings.h>, <sys/mman.h>, <sys/msg.h>, <sys/sem.h>,
              <sys/shm.h>,    <sys/socket.h>,    <sys/types.h>,   <sys/uio.h>,
              <time.h>, <unistd.h>, <wchar.h>, and <wordexp.h>.

       ssize_t
              The following headers  also  provide  ssize_t:  <aio.h>,  <mone-
              tary.h>,  <mqueue.h>,  <stdio.h>,  <sys/msg.h>,  <sys/socket.h>,
              <sys/uio.h>, and <unistd.h>.

SEE ALSO
       read(2), readlink(2), readv(2), recv(2), send(2),  write(2),  fread(3),
       fwrite(3),     memcmp(3),     memcpy(3),     memset(3),    offsetof(3),
       ptrdiff_t(3type)

Linux man-pages 6.03              2023-02-05                     size_t(3type)

Czas wygenerowania: 0.00038 sek.

Created with the man page lookup class by Andrew Collington.
Based on a C man page viewer by Vadim Pavlov
Unicode soft-hyphen fix (as used by RedHat) by Dan Edwards
Some optimisations by Eli Argon
Caching idea and code contribution by James Richardson

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