2 * Copyright (c) 2009-2011 Petri Lehtinen <petri@digip.org>
4 * Jansson is free software; you can redistribute it and/or modify
5 * it under the terms of the MIT license. See LICENSE for details.
8 #ifndef JANSSON_PRIVATE_H
9 #define JANSSON_PRIVATE_H
13 #include "hashtable.h"
15 #define container_of(ptr_, type_, member_) \
16 ((type_ *)((char *)ptr_ - offsetof(type_, member_)))
18 /* On some platforms, max() may already be defined */
20 #define max(a, b) ((a) > (b) ? (a) : (b))
23 /* va_copy is a C99 feature. In C89 implementations, it's sometimes
24 available as __va_copy. If not, memcpy() should do the trick. */
27 #define va_copy __va_copy
29 #define va_copy(a, b) memcpy(&(a), &(b), sizeof(va_list))
35 hashtable_t hashtable;
63 #define json_to_object(json_) container_of(json_, json_object_t, json)
64 #define json_to_array(json_) container_of(json_, json_array_t, json)
65 #define json_to_string(json_) container_of(json_, json_string_t, json)
66 #define json_to_real(json_) container_of(json_, json_real_t, json)
67 #define json_to_integer(json_) container_of(json_, json_integer_t, json)
69 size_t jsonp_hash_key(const void *ptr);
70 int jsonp_key_equal(const void *ptr1, const void *ptr2);
77 const object_key_t *jsonp_object_iter_fullkey(void *iter);
79 void jsonp_error_init(json_error_t *error, const char *source);
80 void jsonp_error_set_source(json_error_t *error, const char *source);
81 void jsonp_error_set(json_error_t *error, int line, int column,
82 size_t position, const char *msg, ...);
83 void jsonp_error_vset(json_error_t *error, int line, int column,
84 size_t position, const char *msg, va_list ap);
86 /* Wrappers for custom memory functions */
87 void* jsonp_malloc(size_t size);
88 void jsonp_free(void *ptr);
89 char *jsonp_strdup(const char *str);