qsort - Sort a table in place
int (*compar)(const void *, const void *) );
Standard C Library (libc)
Interfaces documented on this reference page conform to
industry standards as follows:
qsort(): XPG4, XPG4-UNIX
Refer to the standards(5) reference page for more information
about industry standards and associated tags.
Points to the first entry in the table. Specifies the
number of entries in the table. Specifies the size in
bytes of each table entry. Points to the user-specified
function to be used to compare pairs of table elements.
The comparison function will be called with two parameters
that point to the two elements to be compared. The comparison
function must return an integer less than, equal
to, or greater than zero, depending on whether the first
element in the comparison is considered less than, equal
to, or greater than the second element.
The qsort() function sorts a table having a specified number
of entries. The contents of the table are sorted in
ascending order according to a user-specified comparison
function (the strcmp() function, for example).
The comparison function need not compare every byte, so
arbitrary data may be contained in the elements in addition
to the values being compared.
When two members compare equal, their order in the sorted
array is indeterminate.
Functions: bsearch(3) lsearch(3)
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