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Annotation of embedaddon/ntp/sntp/libopts/compat/strchr.c, revision 1.1

1.1     ! misho       1: /*
        !             2:    SYNOPSIS
        !             3:        #include <string.h>
        !             4: 
        !             5:        char *strchr(char const *s, int c);
        !             6: 
        !             7:        char *strrchr(char const *s, int c);
        !             8: 
        !             9:    DESCRIPTION
        !            10:        The  strchr() function returns a pointer to the first occurrence of the
        !            11:        character c in the string s.
        !            12: 
        !            13:        The strrchr() function returns a pointer to the last occurrence of  the
        !            14:        character c in the string s.
        !            15: 
        !            16:        Here  "character"  means "byte" - these functions do not work with wide
        !            17:        or multi-byte characters.
        !            18: 
        !            19:    RETURN VALUE
        !            20:        The strchr() and strrchr() functions return a pointer  to  the  matched
        !            21:        character or NULL if the character is not found.
        !            22: 
        !            23:    CONFORMING TO
        !            24:        SVID 3, POSIX, BSD 4.3, ISO 9899
        !            25: */
        !            26: 
        !            27: char*
        !            28: strchr( char const *s, int c)
        !            29: {
        !            30:     do {
        !            31:         if ((unsigned)*s == (unsigned)c)
        !            32:             return s;
        !            33: 
        !            34:     } while (*(++s) != NUL);
        !            35: 
        !            36:     return NULL;
        !            37: }
        !            38: 
        !            39: char*
        !            40: strrchr( char const *s, int c)
        !            41: {
        !            42:     char const *e = s + strlen(s);
        !            43: 
        !            44:     for (;;) {
        !            45:         if (--e < s)
        !            46:             break;
        !            47: 
        !            48:         if ((unsigned)*e == (unsigned)c)
        !            49:             return e;
        !            50:     }
        !            51:     return NULL;
        !            52: }
        !            53: 
        !            54: /*
        !            55:  * Local Variables:
        !            56:  * mode: C
        !            57:  * c-file-style: "stroustrup"
        !            58:  * indent-tabs-mode: nil
        !            59:  * End:
        !            60:  * end of compat/strsignal.c */