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- 2009-09-15 QSORT(3)
- int(*compar)(const void *, const void *));
- puts(argv[j]);
- pointers to char", but strcmp(3) arguments are "pointers
- to char", hence the following cast plus dereference */
- exit(EXIT_FAILURE);
- fprintf(stderr, "Usage: %s <string>...\n", argv[0]);
- /* The actual arguments to this function are "pointers to
- exit(EXIT_SUCCESS);
- for (j = 1; j < argc; j++)
- if (argc < 2) {
- int j;
- qsort(&argv[1], argc - 1, sizeof(argv[1]), cmpstringp);
- return strcmp(* (char * const *) p1, * (char * const *) p2);
- }
- #include <stdio.h>
- #include <stdlib.h>
- #include <stdlib.h>
- #include <string.h>
- Another example is the following program, which sorts the strings given
- For one example of use, see the example under bsearch(3).
- Library routines suitable for use as the compar argument include alpha†SVr4, 4.3BSD, C89, C99.
- The qsort() function sorts an array with nmemb elements of size size.
- The base argument points to the start of the array.
- The comparison function must return an integer less than, equal to, or
- The contents of the array are sorted in ascending order according to a
- The qsort() function returns no value.
- This page is part of release 3.35 of the Linux man-pages project. A
- arguments that point to the objects being compared.
- be found at http://man7.org/linux/man-pages/.
- cmpstringp(const void *p1, const void *p2)
- compare as equal, their order in the sorted array is undefined.
- comparison function pointed to by compar, which is called with two
- description of the project, and information about reporting bugs, can
- greater than zero if the first argument is considered to be respec†in its command-line arguments:
- int
- main(int argc, char *argv[])
- qsort - sorts an array
- sort(1), alphasort(3), strcmp(3), versionsort(3)
- sort(3) and versionsort(3). To compare C strings, the comparison func†static int
- tion can call strcmp(3), as shown in the example below.
- tively less than, equal to, or greater than the second. If two members
- void qsort(void *base, size_t nmemb, size_t size,
- {
- {
- }
- }
- COLOPHON
- CONFORMING TO
- DESCRIPTION
- EXAMPLE
- NAME
- NOTES
- QSORT(3) Linux Programmer's Manual QSORT(3)
- RETURN VALUE
- SEE ALSO
- SYNOPSIS
- �
- �
- �
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