NAME

       cmp_set_offset,    cmp_struct,   cmp_char,   cmp_short,   cmp_int,   cmp_long,   cmp_float,   cmp_double,
       cmp_long_double, cmp_schar,  cmp_uchar,  cmp_ushort,  cmp_uint,  cmp_ulong,  cmp_charptr,  cmp_chararr  -
       comparison functions for qsort, bsearch, and others

SYNOPSIS

       #include <cmp.h>
       void cmp_set_offset(size_t offset, int (*)(const void *, const void *));
       int cmp_struct(const void *, const void *);

       int cmp_char(const void *, const void *);
       int cmp_short(const void *, const void *);
       int cmp_int(const void *, const void *);
       int cmp_long(const void *, const void *);
       int cmp_float(const void *, const void *);
       int cmp_double(const void *, const void *);
       int cmp_long_double(const void *, const void *);

       int cmp_schar(const void *, const void *);

       int cmp_uchar(const void *, const void *);
       int cmp_ushort(const void *, const void *);
       int cmp_uint(const void *, const void *);
       int cmp_ulong(const void *, const void *);

       int cmp_charptr(const void *, const void *);
       int cmp_chararr(const void *, const void *);

DESCRIPTION

       The  functions  declared  above,  with the exception of cmp_set_offset, compare two array elements of the
       indicated type when given  pointers  to  them.   The  functions  are  designed  to  work  with  qsort(3),
       bsearch(3),  and a number of other library functions which all need the same type of comparison function.
       They all return negative if the value indicated by the first argument is less than the second, 0 if  they
       are the same, and positive otherwise.

       cmp_struct  compares  elements  of  a  structure.   It  needs  to  know  the offset of the element, and a
       comparison function suitable for the type of the element.   These  are  set  with  cmp_set_offset,  which
       should be called before qsort(3).  The settings stay in effect until changed.

SEE ALSO

       publib(3), qsort(3), bsearch(3), isort(3), lsearch(3), lfind(3)

AUTHOR

       Lars Wirzenius (lars.wirzenius@helsinki.fi)