Dynamic memory allocation Post: 302230579

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binsrch

BINSRCH(3WN)						    WordNettm Library Functions 					      BINSRCH(3WN)

NAME

       bin_search, copyfile, replace_line, insert_line - general purpose functions for performing a binary search

SYNOPSIS

       char *bin_search(char *key, FILE *fp);

       void copyfile(FILE *fromfp, FILE *tofp);

       char *replace_line(char *new_line, char *key, FILE *fp);

       char *insert_line(char *new_line, char *key, FILE *fp);

DESCRIPTION

       The WordNet library contains several general purpose functions for performing a binary search and modifying sorted files.

       bin_search() is the primary binary search algorithm to search for key as the first item on a line in the file pointed to by fp.	The delim-
       iter between the key and the rest of the fields on the line, if any, must be a space.  A pointer to a static variable containing the entire
       line is returned.  NULL is returned if a match is not found.

       The remaining functions are not used by WordNet, and are only briefly described.

       copyfile() copies the contents of one file to another.

       replace_line()  replaces a line in a file having searchkey key with the contents of new_line.  It returns the original line or NULL in case
       of error.

       insert_line() finds the proper place to insert the contents of new_line, having searchkey key in the sorted file  pointed  to  by  fp.	It
       returns NULL if a line with this searchkey is already in the file.

NOTES

       The maximum length of key is 1024.

       The maximum line length in a file is 25K.

       If there are no additional fields after the search key, the key must be followed by at least one space before the newline character.

SEE ALSO

       wnintro(3WN), morph(3WN), wnsearch(3WN), wnutil(3WN), wnintro(5WN).

WARNINGS

       binsearch()  returns  a pointer to a static character buffer.  The returned string should be copied by the caller if the results need to be
       saved, as a subsequent call will replace the contents of the static buffer.

WordNet 3.0							     Dec 2006							      BINSRCH(3WN)