Browse Source Download (without any required ccan dependencies)

Module:

strmap

Summary:

an ordered map of strings to values

Author:

Rusty Russell <rusty@rustcorp.com.au>

Dependencies:

Description:

This code implements an ordered map of strings as a critbit tree. See: 

 http://cr.yp.to/critbit.html
 http://github.com/agl/critbit (which this code is based on)

Example:

#include <ccan/strmap/strmap.h>
#include <stdio.h>

static bool dump(const char *member, size_t value, void *unused)
{
     printf("%s at %zu. ", member, value);
     // true means keep going with iteration.
     return true;
}

int main(int argc, char *argv[])
{
     size_t i;
     struct { STRMAP_MEMBERS(size_t); } map;

     strmap_init(&map);
     for (i = 1; i < argc; i++)
             // This only adds the first time for this arg.
             strmap_add(&map, argv[i], i);

     strmap_iterate(&map, dump, NULL);
     printf("\n");
     return 0;
}
// Given 'foo' outputs 'foo at 1. '
// Given 'foo bar' outputs 'bar at 2. foo at 1. '
// Given 'foo foo bar zebra' outputs 'bar at 3. foo at 1. zebra at 4. '

License:

CC0 (but some dependencies are LGPL!)