strfind(3GEN) String Pattern-Matching Library Functions strfind(3GEN)NAME
strfind, strrspn, strtrns - string manipulations
SYNOPSIS
cc [ flag ... ] file ... -lgen [ library ... ]
#include <libgen.h>
int strfind(const char *as1, const char *as2);
char *strrspn(const char *string, const char *tc);
char * strtrns(const char *string, const char *old,
const char *new, char *result);
DESCRIPTION
The strfind() function returns the offset of the first occurrence of
the second string, as2, if it is a substring of string as1. If the
second string is not a substring of the first string strfind() returns
−1.
The strrspn() function trims chartacters from a string. It searches
from the end of string for the first character that is not contained in
tc. If such a character is found, strrspn() returns a pointer to the
next character; otherwise, it returns a pointer to string.
The strtrns() function transforms string and copies it into result.
Any character that appears in old is replaced with the character in
the same position in new. The new result is returned.
USAGE
When compiling multithreaded applications, the _REENTRANT flag must be
defined on the compile line. This flag should only be used in multi‐
threaded applications.
EXAMPLES
Example 1 An example of the strfind() function.
/* find offset to substring "hello" within as1 */
i = strfind(as1, "hello");
/* trim junk from end of string */
s2 = strrspn(s1, "*?#$%");
*s2 = '\0';
/* transform lower case to upper case */
a1[] = "abcdefghijklmnopqrstuvwxyz";
a2[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
s2 = strtrns(s1, a1, a2, s2);
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOstring(3C), attributes(5)SunOS 5.10 20 Jan 1999 strfind(3GEN)
