pSOSystem System Calls - Read

qsort pREPC+ System Calls
qsort Sorts an array.
#include
void qsort(
void *base, /* array base */
size_t nmemb, /* array length */
size_t size, /* array element size */
int (*compar) (const void *, const void *)
/* comparison function */
)
Description
Arguments
Return Value
The qsort() function sorts an array of nmemb objects, the initial element of which
is pointed to by base. The size of each object is specified by size.
The array is sorted in ascending order according to the user-supplied function
pointed to by compar. The compar function is called with two arguments that point
to the objects being compared. The compar function must return an integer that is
less than, equal to, or greater than 0 if the first argument is considered less than,
equal to, or greater than the second argument, respectively. The compar function
can call all pREPC+ character handling functions and all pREPC+ string handling
functions except strtok(). Other pREPC+ functions cannot be called from
compar.
If two members of the array are equal, their order in the sorted array is unspecified.
base Points to the beginning of the array.
nmemb Specifies the length of the array.
size Specifies the size of each member of the array.
compar Points to the user-supplied comparison function.
This function does not return a value.
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