6988f53fcb
This is particularly useful when replacing values in a loop, since it allows the key used by json_object_object_foreach to continue to be used.
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <string.h>
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#include "json.h"
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int main(int argc, char **argv)
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{
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MC_SET_DEBUG(1);
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/*
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* Check that replacing an existing object keeps the key valid,
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* and that it keeps the order the same.
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*/
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json_object *my_object = json_object_new_object();
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json_object_object_add(my_object, "foo1", json_object_new_string("bar1"));
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json_object_object_add(my_object, "foo2", json_object_new_string("bar2"));
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json_object_object_add(my_object, "foo3", json_object_new_string("bar3"));
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const char *original_key = NULL;
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int orig_count = 0;
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json_object_object_foreach(my_object, key, val)
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{
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printf("Key at index %d is [%s]\n", orig_count, key);
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orig_count++;
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if (strcmp(key, "foo2") != 0)
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continue;
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printf("replacing value for key [%s]\n", key);
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original_key = key;
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json_object_object_add(my_object, key, json_object_new_string("zzz"));
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}
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printf("==== second loop starting ====\n");
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int new_count = 0;
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int retval = 0;
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json_object_object_foreach(my_object, key2, val2)
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{
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printf("Key at index %d is [%s]\n", new_count, key2);
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new_count++;
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if (strcmp(key2, "foo2") != 0)
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continue;
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printf("pointer for key [%s] does %smatch\n", key2,
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(key2 == original_key) ? "" : "NOT ");
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if (key2 != original_key)
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retval = 1;
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}
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if (new_count != orig_count)
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{
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printf("mismatch between original count (%d) and new count (%d)\n",
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orig_count, new_count);
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retval = 1;
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}
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return 0;
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}
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