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* libc/stdio/local.h (CHECK_INIT): Evaluate argument only once. (CHECK_STD_INIT): Likewise. * libc/stdio/fgetc.c (fgetc): Use local variable for _REENT. * libc/stdio/fgetwc.c (fwgetc): Likewise. * libc/stdio/fgetws.c (fgetws): Likewise. * libc/stdio/fputc.c (fputc): Likewise. * libc/stdio/fputwc.c (fputwc): Likewise. * libc/stdio/fputws.c (fputws): Likewise. * libc/stdio/getc.c (getc): Likewise. * libc/stdio/getchar.c (_getchar_r): Likewise. * libc/stdio/putc.c (putc): Likewise. * libc/stdio/putchar.c (putchar): Likewise. * libc/stdio/scanf.c (scanf): Likewise. * libc/stdio/setvbuf.c (setvbuf): Likewise. * libc/stdio/ungetwc.c (ungetwc): Likewise. * libc/stdio/vfscanf.c (VFSCANF): Likewise. * libc/stdio/vfwscanf.c (VFWSCANF): Likewise. * libc/stdio/viprintf.c (viprintf): Likewise. * libc/stdio/viscanf.c (viscanf): Likewise. * libc/stdio/vprintf.c (vprintf): Likewise. * libc/stdio/vscanf.c (vscanf): Likewise. * libc/stdio/vwprintf.c (vwprintf): Likewise. * libc/stdio/vwscanf.c (vwscanf): Likewise. * libc/stdio/wscanf.c (wscanf): Likewise. * libc/stdlib/ecvtbuf.c (fcvtbuf): Likewise. (fcvtbuf): Likewise. (ecvtbuf): Likewise. (ecvtbuf): Likewise. * libc/stdlib/mblen.c (mblen): Likewise. * libc/stdlib/mbrlen.c (mbrlen): Likewise. * libc/stdlib/mbrtowc.c (mbrtowc): Likewise. * libc/stdlib/mbtowc.c (mbtowc): Likewise. * libc/stdlib/rand.c (srand): Likewise. (rand): Likewise. * libc/stdlib/wcrtomb.c (wcrtomb): Likewise. * libc/stdlib/wctob.c (wctob): Likewise. * libc/stdlib/wctomb.c (wctomb): Likewise. * libc/string/strtok.c (strtok): Likewise. * libc/time/asctime.c (asctime): Likewise. * libc/time/gmtime.c (gmtime): Likewise. * libc/time/lcltime.c (lcltime): Likewise.
104 lines
3.0 KiB
C
104 lines
3.0 KiB
C
/*
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FUNCTION
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<<strtok>>, <<strtok_r>>, <<strsep>>---get next token from a string
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INDEX
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strtok
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INDEX
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strtok_r
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INDEX
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strsep
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ANSI_SYNOPSIS
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#include <string.h>
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char *strtok(char *<[source]>, const char *<[delimiters]>)
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char *strtok_r(char *<[source]>, const char *<[delimiters]>,
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char **<[lasts]>)
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char *strsep(char **<[source_ptr]>, const char *<[delimiters]>)
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TRAD_SYNOPSIS
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#include <string.h>
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char *strtok(<[source]>, <[delimiters]>)
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char *<[source]>;
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char *<[delimiters]>;
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char *strtok_r(<[source]>, <[delimiters]>, <[lasts]>)
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char *<[source]>;
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char *<[delimiters]>;
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char **<[lasts]>;
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char *strsep(<[source_ptr]>, <[delimiters]>)
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char **<[source_ptr]>;
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char *<[delimiters]>;
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DESCRIPTION
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The <<strtok>> function is used to isolate sequential tokens in a
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null-terminated string, <<*<[source]>>>. These tokens are delimited
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in the string by at least one of the characters in <<*<[delimiters]>>>.
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The first time that <<strtok>> is called, <<*<[source]>>> should be
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specified; subsequent calls, wishing to obtain further tokens from
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the same string, should pass a null pointer instead. The separator
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string, <<*<[delimiters]>>>, must be supplied each time and may
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change between calls.
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The <<strtok>> function returns a pointer to the beginning of each
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subsequent token in the string, after replacing the separator
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character itself with a null character. When no more tokens remain,
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a null pointer is returned.
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The <<strtok_r>> function has the same behavior as <<strtok>>, except
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a pointer to placeholder <<*<[lasts]>>> must be supplied by the caller.
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The <<strsep>> function is similar in behavior to <<strtok>>, except
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a pointer to the string pointer must be supplied <<<[source_ptr]>>> and
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the function does not skip leading delimiters. When the string starts
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with a delimiter, the delimiter is changed to the null character and
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the empty string is returned. Like <<strtok_r>> and <<strtok>>, the
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<<*<[source_ptr]>>> is updated to the next character following the
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last delimiter found or NULL if the end of string is reached with
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no more delimiters.
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RETURNS
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<<strtok>>, <<strtok_r>>, and <<strsep>> all return a pointer to the
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next token, or <<NULL>> if no more tokens can be found. For
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<<strsep>>, a token may be the empty string.
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NOTES
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<<strtok>> is unsafe for multi-threaded applications. <<strtok_r>>
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and <<strsep>> are thread-safe and should be used instead.
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PORTABILITY
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<<strtok>> is ANSI C.
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<<strtok_r>> is POSIX.
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<<strsep>> is a BSD extension.
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<<strtok>>, <<strtok_r>>, and <<strsep>> require no supporting OS subroutines.
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QUICKREF
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strtok ansi impure
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*/
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/* undef STRICT_ANSI so that strtok_r prototype will be defined */
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#undef __STRICT_ANSI__
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#include <string.h>
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#include <_ansi.h>
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#include <reent.h>
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#ifndef _REENT_ONLY
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extern char *__strtok_r (char *, const char *, char **, int);
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char *
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_DEFUN (strtok, (s, delim),
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register char *s _AND
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register const char *delim)
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{
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struct _reent *reent = _REENT;
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_REENT_CHECK_MISC(reent);
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return __strtok_r (s, delim, &(_REENT_STRTOK_LAST(reent)), 1);
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}
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#endif
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