string(3) [minix man page]

STRING(3)						     Library Functions Manual							 STRING(3)

NAME

       string,	strcat,  strncat,  strcmp,  strncmp,  strcpy,  strncpy, strlen, index, rindex - string operations string, strcat, strncat, strcmp,
       strncmp, strcpy, strncpy, strlen, strchr, strrchr, strerror, memcmp, memcpy, memmove, memchr, memset, index, rindex - string operations

SYNOPSIS

       #include <sys/types.h>
       #include <strings.h>

       char *strcat(char *s1, const char *s2)
       char *strncat(char *s1, const char *s2, size_t n)
       int strcmp(const char *s1, const char *s2)
       int strncmp(const char *s1, const char *s2, size_t n)
       char *strcpy(char *s1, const char *s2)
       char *strncpy(char *s1, const char *s2, size_t n)
       size_t strlen(const char *s)
       char *strchr(const char *s, int c)
       char *strrchr(const char *s, int c)
       char *strerror(int errnum)
       int memcmp(const void *s1, const void *s2, size_t n)
       void *memcpy(void *s1, const void *s2, size_t n)
       void *memmove(void *s1, const void *s2, size_t n)
       void *memchr(const void *s, int c, size_t n)
       void *memset(void *s, int c, size_t n)
       char *index(const char *s, int c)
       char *rindex(const char *s, int c)

DESCRIPTION

       These functions operate on null-terminated strings.  They do not check for overflow of any receiving string.

       Strcat appends a copy of string s2 to the end of string s1.  Strncat copies at most n characters.  Both return a pointer to the null-termi-
       nated result.

       Strcmp  compares  its arguments and returns an integer greater than, equal to, or less than 0, according as s1 is lexicographically greater
       than, equal to, or less than s2.  Strncmp makes the same comparison but looks at at most n characters.

       Strcpy copies string s2 to s1, stopping after the null character has been moved.  Strncpy copies exactly n characters, truncating or  null-
       padding s2; the target may not be null-terminated if the length of s2 is n or more.  Both return s1.

       Strlen returns the number of non-null characters in s.

       Strchr (strrchr) returns a pointer to the first (last) occurrence of character c in string s, or null if c does not occur in the string.

       Strerror returns the error string for the system call error errnum.  See intro(2).

       Memcmp is like strcmp except that the strings are memory blocks of length n.  Null characters are treated as ordinary characters.

       Memcpy  copies n bytes from the location pointed to by s2 to s1.  Memmove is like memcpy, except that it can handle overlap between the two
       strings.  Both functions return s1.

       Memchr returns a pointer to the first occurrence of character c in string s, or null if c does not occur in the string.

       Memset sets n bytes to c starting at location s.  It returns s.

       Index and rindex are obsolete versions of strchr and strrchr.  New code should avoid using them.

NOTES

       Characters are compared as unsigned char, whether char itself is signed or not.

4th Berkeley Distribution					   May 15, 1985 							 STRING(3)

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STRING(3)						     Library Functions Manual							 STRING(3)

NAME

       strcat, strncat, strcmp, strncmp, strcasecmp, strncasecmp, strcpy, strncpy, strlen, index, rindex - string operations

SYNOPSIS

       #include <strings.h>

       char *strcat(s, append)
       char *s, *append;

       char *strncat(s, append, count)
       char *s, *append;
       int count;

       strcmp(s1, s2)
       char *s1, *s2;

       strncmp(s1, s2, count)
       char *s1, *s2;
       int count;

       strcasecmp(s1, s2)
       char *s1, *s2;

       strncasecmp(s1, s2, count)
       char *s1, *s2;
       int count;

       char *strcpy(to, from)
       char *to, *from;

       char *strncpy(to, from, count)
       char *to, *from;
       int count;

       strlen(s)
       char *s;

       char *index(s, c)
       char *s, c;

       char *rindex(s, c)
       char *s, c;

DESCRIPTION

       These functions operate on null-terminated strings.  They do not check for overflow of any receiving string.

       Strcat appends a copy of string append to the end of string s. Strncat copies at most count characters.	Both return a pointer to the null-
       terminated result.

       Strcmp compares its arguments and returns an integer greater than, equal to, or less than 0, according as s1 is	lexicographically  greater
       than,  equal to, or less than s2.  Strncmp makes the same comparison but looks at at most count characters.  Strcasecmp and strncasecmp are
       identical in function, but are case insensitive.  The returned lexicographic difference reflects a conversion to lower-case.

       Strcpy copies string from to to, stopping after the null character has been moved.  Strncpy  copies  exactly  count  characters,  appending
       nulls  if from is less than count characters in length; the target may not be null-terminated if the length of from is count or more.  Both
       return to.

       Strlen returns the number of non-null characters in s.

       Index (rindex) returns a pointer to the first (last) occurrence of character c in string s or zero if c does not occur in the string.  Set-
       ting c to NULL works.

4th Berkeley Distribution					 October 22, 1987							 STRING(3)

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string(3) [minix man page]

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