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This page displays the COHERENT manpage for index() [Find a character in a string].
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index() -- String Function (libc) Find a character in a string #include <string.h> char *index(string, c) char *string; char c; index() scans the given string for the first occurrence of the character c. If c is found, index() returns a pointer to it. If it is not found, index() returns NULL. Note that having index() search for a NUL character will always produce a pointer to the end of a string. For example, char *string; assert(index(string, 0)==string+strlen(string)); will never fail. Example For an example of this function, see the entry for strncpy(). See Also libc, pnmatch(), strchr(), string.h, strrchr(), string.h Notes You must include header file string.h in any program that uses index(), or that program will not link correctly. index() is now obsolete. You should use strchr() instead.