Attachment 132009 Details for Bug 176197 – file.diff

[patch] file.diff

file.diff (text/plain), 1.06 KB, created by Fernando on 2013-02-16 18:00:00 UTC

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Creator: Fernando

Created: 2013-02-16 18:00:00 UTC

Size: 1.06 KB

patch

obsolete

>--- lib/libc/stdlib/qsort.3	2012-01-03 04:26:05.000000000 +0100
>+++ /home/fernape/Programming/FreeBSD/qsort_man/qsort.3	2013-02-16 18:42:44.000000000 +0100
>@@ -211,6 +211,52 @@
> did not permit the comparison routine itself to call
> .Fn qsort 3 .
> This is no longer true.
>+.Sh EXAMPLES
>+Sort an array of integers.
>+.Bd -literal
>+#include <stdio.h>
>+#include <stdlib.h>
>+#include <string.h>
>+
>+/*
>+ * Custom comparison function
>+ */
>+static int
>+str_compare(const void *p1, const void *p2)
>+{
>+
>+	/* Cast and dereference */
>+	if (*(int *)p1 < *(int *)p2)
>+		return (-1);
>+
>+	if (*(int *)p1 > *(int *)p2)
>+		return (1);
>+
>+	return (0);
>+
>+}
>+
>+/*
>+ * Sort an array of integers
>+ */
>+int
>+main(int argc, char **argv)
>+{
>+	int i;
>+	int int_array[] = {4, 5, 9, 3, 1, 7, 2, 8, 6};
>+	const int array_size = sizeof(int_array) / sizeof(int);
>+
>+	/* Sort array */
>+	qsort(&int_array, array_size, sizeof(int), str_compare);
>+
>+	/* Print out sorted array */
>+	for (i = 0; i < array_size; i++) {
>+		printf("%d\n", int_array[i]);
>+	}
>+
>+	exit(EXIT_SUCCESS);
>+}
>+.Ed
> .Sh ERRORS
> The
> .Fn heapsort

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