add CJSON_PUBLIC macro to public functions to support visibility and dllimport/dllexport

cJSON.c

@@ -39,7 +39,7 @@ typedef int cjbool;
 
 static const unsigned char *global_ep = NULL;
 
-const char *cJSON_GetErrorPtr(void)
+CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void)
 {
     return (const char*) global_ep;
 }
@@ -49,7 +49,7 @@ const char *cJSON_GetErrorPtr(void)
     #error cJSON.h and cJSON.c have different versions. Make sure that both have the same.
 #endif
 
-extern const char* cJSON_Version(void)
+CJSON_PUBLIC(const char*) cJSON_Version(void)
 {
     static char version[15];
     sprintf(version, "%i.%i.%i", CJSON_VERSION_MAJOR, CJSON_VERSION_MINOR, CJSON_VERSION_PATCH);
@@ -108,7 +108,7 @@ static unsigned char* cJSON_strdup(const unsigned char* str, const internal_hook
     return copy;
 }
 
-void cJSON_InitHooks(cJSON_Hooks* hooks)
+CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks)
 {
     if (hooks == NULL)
     {
@@ -152,7 +152,7 @@ static cJSON *cJSON_New_Item(const internal_hooks * const hooks)
 }
 
 /* Delete a cJSON structure. */
-void cJSON_Delete(cJSON *c)
+CJSON_PUBLIC(void) cJSON_Delete(cJSON *c)
 {
     cJSON *next = NULL;
     while (c)
@@ -214,7 +214,7 @@ static const unsigned char *parse_number(cJSON * const item, const unsigned char
 }
 
 /* don't ask me, but the original cJSON_SetNumberValue returns an integer or double */
-double cJSON_SetNumberHelper(cJSON *object, double number)
+CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number)
 {
     if (number >= INT_MAX)
     {
@@ -805,7 +805,7 @@ static const unsigned char *skip_whitespace(const unsigned char *in)
 }
 
 /* Parse an object - create a new root, and populate. */
-cJSON *cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cjbool require_null_terminated)
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cjbool require_null_terminated)
 {
     const unsigned char *end = NULL;
     /* use global error pointer if no specific one was given */
@@ -845,7 +845,7 @@ cJSON *cJSON_ParseWithOpts(const char *value, const char **return_parse_end, cjb
 }
 
 /* Default options for cJSON_Parse */
-cJSON *cJSON_Parse(const char *value)
+CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value)
 {
     return cJSON_ParseWithOpts(value, 0, 0);
 }
@@ -902,17 +902,17 @@ fail:
 }
 
 /* Render a cJSON item/entity/structure to text. */
-char *cJSON_Print(const cJSON *item)
+CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item)
 {
     return (char*)print(item, true, &global_hooks);
 }
 
-char *cJSON_PrintUnformatted(const cJSON *item)
+CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item)
 {
     return (char*)print(item, false, &global_hooks);
 }
 
-char *cJSON_PrintBuffered(const cJSON *item, int prebuffer, cjbool fmt)
+CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, cjbool fmt)
 {
     printbuffer p;
 
@@ -934,7 +934,7 @@ char *cJSON_PrintBuffered(const cJSON *item, int prebuffer, cjbool fmt)
     return (char*)print_value(item, 0, fmt, &p, &global_hooks);
 }
 
-int cJSON_PrintPreallocated(cJSON *item, char *buf, const int len, const cjbool fmt)
+CJSON_PUBLIC(int) cJSON_PrintPreallocated(cJSON *item, char *buf, const int len, const cjbool fmt)
 {
     printbuffer p;
 
@@ -1432,7 +1432,7 @@ static unsigned char *print_object(const cJSON * const item, const size_t depth,
 }
 
 /* Get Array size/item / object item. */
-int cJSON_GetArraySize(const cJSON *array)
+CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array)
 {
     cJSON *c = array->child;
     size_t i = 0;
@@ -1447,7 +1447,7 @@ int cJSON_GetArraySize(const cJSON *array)
     return (int)i;
 }
 
-cJSON *cJSON_GetArrayItem(const cJSON *array, int item)
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int item)
 {
     cJSON *c = array ? array->child : NULL;
     while (c && item > 0)
@@ -1459,7 +1459,7 @@ cJSON *cJSON_GetArrayItem(const cJSON *array, int item)
     return c;
 }
 
-cJSON *cJSON_GetObjectItem(const cJSON *object, const char *string)
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON *object, const char *string)
 {
     cJSON *c = object ? object->child : NULL;
     while (c && cJSON_strcasecmp((unsigned char*)c->string, (const unsigned char*)string))
@@ -1469,7 +1469,7 @@ cJSON *cJSON_GetObjectItem(const cJSON *object, const char *string)
     return c;
 }
 
-cJSON *cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string)
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char * const string)
 {
     cJSON *current_element = NULL;
 
@@ -1487,7 +1487,7 @@ cJSON *cJSON_GetObjectItemCaseSensitive(const cJSON * const object, const char *
     return current_element;
 }
 
-cjbool cJSON_HasObjectItem(const cJSON *object, const char *string)
+CJSON_PUBLIC(cjbool) cJSON_HasObjectItem(const cJSON *object, const char *string)
 {
     return cJSON_GetObjectItem(object, string) ? 1 : 0;
 }
@@ -1515,7 +1515,7 @@ static cJSON *create_reference(const cJSON *item, const internal_hooks * const h
 }
 
 /* Add item to array/object. */
-void cJSON_AddItemToArray(cJSON *array, cJSON *item)
+CJSON_PUBLIC(void) cJSON_AddItemToArray(cJSON *array, cJSON *item)
 {
     cJSON *child = NULL;
 
@@ -1542,7 +1542,7 @@ void cJSON_AddItemToArray(cJSON *array, cJSON *item)
     }
 }
 
-void   cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
+CJSON_PUBLIC(void) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
 {
     /* call cJSON_AddItemToObjectCS for code reuse */
     cJSON_AddItemToObjectCS(object, (char*)cJSON_strdup((const unsigned char*)string, &global_hooks), item);
@@ -1551,7 +1551,7 @@ void   cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item)
 }
 
 /* Add an item to an object with constant string as key */
-void   cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item)
+CJSON_PUBLIC(void) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item)
 {
     if (!item)
     {
@@ -1569,12 +1569,12 @@ void   cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item)
     cJSON_AddItemToArray(object, item);
 }
 
-void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)
+CJSON_PUBLIC(void) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item)
 {
     cJSON_AddItemToArray(array, create_reference(item, &global_hooks));
 }
 
-void cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item)
+CJSON_PUBLIC(void) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item)
 {
     cJSON_AddItemToObject(object, string, create_reference(item, &global_hooks));
 }
@@ -1610,7 +1610,7 @@ static cJSON *DetachItemFromArray(cJSON *array, size_t which)
 
     return c;
 }
-cJSON *cJSON_DetachItemFromArray(cJSON *array, int which)
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which)
 {
     if (which < 0)
     {
@@ -1620,12 +1620,12 @@ cJSON *cJSON_DetachItemFromArray(cJSON *array, int which)
     return DetachItemFromArray(array, (size_t)which);
 }
 
-void cJSON_DeleteItemFromArray(cJSON *array, int which)
+CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which)
 {
     cJSON_Delete(cJSON_DetachItemFromArray(array, which));
 }
 
-cJSON *cJSON_DetachItemFromObject(cJSON *object, const char *string)
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string)
 {
     size_t i = 0;
     cJSON *c = object->child;
@@ -1642,13 +1642,13 @@ cJSON *cJSON_DetachItemFromObject(cJSON *object, const char *string)
     return NULL;
 }
 
-void cJSON_DeleteItemFromObject(cJSON *object, const char *string)
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string)
 {
     cJSON_Delete(cJSON_DetachItemFromObject(object, string));
 }
 
 /* Replace array/object items with new ones. */
-void cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem)
+CJSON_PUBLIC(void) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem)
 {
     cJSON *c = array->child;
     while (c && (which > 0))
@@ -1703,7 +1703,7 @@ static void ReplaceItemInArray(cJSON *array, size_t which, cJSON *newitem)
     c->next = c->prev = NULL;
     cJSON_Delete(c);
 }
-void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
+CJSON_PUBLIC(void) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
 {
     if (which < 0)
     {
@@ -1713,7 +1713,7 @@ void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem)
     ReplaceItemInArray(array, (size_t)which, newitem);
 }
 
-void cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem)
+CJSON_PUBLIC(void) cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem)
 {
     size_t i = 0;
     cJSON *c = object->child;
@@ -1736,7 +1736,7 @@ void cJSON_ReplaceItemInObject(cJSON *object, const char *string, cJSON *newitem
 }
 
 /* Create basic types: */
-cJSON *cJSON_CreateNull(void)
+CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1747,7 +1747,7 @@ cJSON *cJSON_CreateNull(void)
     return item;
 }
 
-cJSON *cJSON_CreateTrue(void)
+CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1758,7 +1758,7 @@ cJSON *cJSON_CreateTrue(void)
     return item;
 }
 
-cJSON *cJSON_CreateFalse(void)
+CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1769,7 +1769,7 @@ cJSON *cJSON_CreateFalse(void)
     return item;
 }
 
-cJSON *cJSON_CreateBool(cjbool b)
+CJSON_PUBLIC(cJSON *) cJSON_CreateBool(cjbool b)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1780,7 +1780,7 @@ cJSON *cJSON_CreateBool(cjbool b)
     return item;
 }
 
-cJSON *cJSON_CreateNumber(double num)
+CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1806,7 +1806,7 @@ cJSON *cJSON_CreateNumber(double num)
     return item;
 }
 
-cJSON *cJSON_CreateString(const char *string)
+CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1823,7 +1823,7 @@ cJSON *cJSON_CreateString(const char *string)
     return item;
 }
 
-extern cJSON *cJSON_CreateRaw(const char *raw)
+CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1840,7 +1840,7 @@ extern cJSON *cJSON_CreateRaw(const char *raw)
     return item;
 }
 
-cJSON *cJSON_CreateArray(void)
+CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if(item)
@@ -1851,7 +1851,7 @@ cJSON *cJSON_CreateArray(void)
     return item;
 }
 
-cJSON *cJSON_CreateObject(void)
+CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void)
 {
     cJSON *item = cJSON_New_Item(&global_hooks);
     if (item)
@@ -1863,7 +1863,7 @@ cJSON *cJSON_CreateObject(void)
 }
 
 /* Create Arrays: */
-cJSON *cJSON_CreateIntArray(const int *numbers, int count)
+CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count)
 {
     size_t i = 0;
     cJSON *n = NULL;
@@ -1898,7 +1898,7 @@ cJSON *cJSON_CreateIntArray(const int *numbers, int count)
     return a;
 }
 
-cJSON *cJSON_CreateFloatArray(const float *numbers, int count)
+CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count)
 {
     size_t i = 0;
     cJSON *n = NULL;
@@ -1934,7 +1934,7 @@ cJSON *cJSON_CreateFloatArray(const float *numbers, int count)
     return a;
 }
 
-cJSON *cJSON_CreateDoubleArray(const double *numbers, int count)
+CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count)
 {
     size_t i = 0;
     cJSON *n = NULL;
@@ -1970,7 +1970,7 @@ cJSON *cJSON_CreateDoubleArray(const double *numbers, int count)
     return a;
 }
 
-cJSON *cJSON_CreateStringArray(const char **strings, int count)
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char **strings, int count)
 {
     size_t i = 0;
     cJSON *n = NULL;
@@ -2007,7 +2007,7 @@ cJSON *cJSON_CreateStringArray(const char **strings, int count)
 }
 
 /* Duplication */
-cJSON *cJSON_Duplicate(const cJSON *item, cjbool recurse)
+CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, cjbool recurse)
 {
     cJSON *newitem = NULL;
     cJSON *child = NULL;
@@ -2086,7 +2086,7 @@ fail:
     return NULL;
 }
 
-void cJSON_Minify(char *json)
+CJSON_PUBLIC(void) cJSON_Minify(char *json)
 {
     unsigned char *into = (unsigned char*)json;
     while (*json)

cJSON.h

@@ -81,85 +81,122 @@ typedef struct cJSON_Hooks
       void (*free_fn)(void *ptr);
 } cJSON_Hooks;
 
+#if !defined(__WINDOWS__) && (defined(WIN32) || defined(WIN64) || defined(_MSC_VER) || defined(_WIN32))
+#define __WINDOWS__
+#endif
+#ifdef __WINDOWS__
+
+/* When compiling for windows, we specify a specific calling convention to avoid issues where we are being called from a project with a different default calling convention.  For windows you have 2 define options:
+
+CJSON_HIDE_SYMBOLS - Define this in the case where you don't want to ever dllexport symbols
+CJSON_EXPORT_SYMBOLS - Define this on library build when you want to dllexport symbols
+
+For *nix builds that support visibility attribute, you can define similar behavior by 
+
+setting default visibility to hidden by adding
+-fvisibility=hidden (for gcc)
+or
+-xldscope=hidden (for sun cc)
+to CFLAGS
+
+then using the CJSON_API_VISIBILITY flag to "export" the same symbols the way CJSON_EXPORT_SYMBOLS does
+
+*/
+
+#if defined(CJSON_HIDE_SYMBOLS)
+#define CJSON_PUBLIC(type)   type __stdcall
+#elif defined(CJSON_EXPORT_SYMBOLS)
+#define CJSON_PUBLIC(type)   __declspec(dllexport) type __stdcall
+#else
+#define CJSON_PUBLIC(type)   __declspec(dllimport) type __stdcall
+#endif
+#else /* !WIN32 */
+#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(CJSON_API_VISIBILITY)
+#define CJSON_PUBLIC(type)   __attribute__((visibility("default"))) type
+#else
+#define CJSON_PUBLIC(type) type
+#endif
+#endif
+
 /* Supply malloc, realloc and free functions to cJSON */
-extern void cJSON_InitHooks(cJSON_Hooks* hooks);
+CJSON_PUBLIC(void) cJSON_InitHooks(cJSON_Hooks* hooks);
 
 
 /* Supply a block of JSON, and this returns a cJSON object you can interrogate. Call cJSON_Delete when finished. */
-extern cJSON *cJSON_Parse(const char *value);
+CJSON_PUBLIC(cJSON *) cJSON_Parse(const char *value);
 /* Render a cJSON entity to text for transfer/storage. Free the char* when finished. */
-extern char  *cJSON_Print(const cJSON *item);
+CJSON_PUBLIC(char *) cJSON_Print(const cJSON *item);
 /* Render a cJSON entity to text for transfer/storage without any formatting. Free the char* when finished. */
-extern char  *cJSON_PrintUnformatted(const cJSON *item);
+CJSON_PUBLIC(char *) cJSON_PrintUnformatted(const cJSON *item);
 /* Render a cJSON entity to text using a buffered strategy. prebuffer is a guess at the final size. guessing well reduces reallocation. fmt=0 gives unformatted, =1 gives formatted */
-extern char *cJSON_PrintBuffered(const cJSON *item, int prebuffer, int fmt);
+CJSON_PUBLIC(char *) cJSON_PrintBuffered(const cJSON *item, int prebuffer, int fmt);
 /* Render a cJSON entity to text using a buffer already allocated in memory with length buf_len. Returns 1 on success and 0 on failure. */
-extern int cJSON_PrintPreallocated(cJSON *item, char *buf, const int len, const int fmt);
+CJSON_PUBLIC(int) cJSON_PrintPreallocated(cJSON *item, char *buf, const int len, const int fmt);
 /* Delete a cJSON entity and all subentities. */
-extern void   cJSON_Delete(cJSON *c);
+CJSON_PUBLIC(void) cJSON_Delete(cJSON *c);
 
 /* Returns the number of items in an array (or object). */
-extern int	  cJSON_GetArraySize(const cJSON *array);
+CJSON_PUBLIC(int) cJSON_GetArraySize(const cJSON *array);
 /* Retrieve item number "item" from array "array". Returns NULL if unsuccessful. */
-extern cJSON *cJSON_GetArrayItem(const cJSON *array, int item);
+CJSON_PUBLIC(cJSON *) cJSON_GetArrayItem(const cJSON *array, int item);
 /* Get item "string" from object. Case insensitive. */
-extern cJSON *cJSON_GetObjectItem(const cJSON *object, const char *string);
-extern cJSON *cJSON_GetObjectItemCaseSensitive(const cJSON *object, const char *string);
-extern int cJSON_HasObjectItem(const cJSON *object, const char *string);
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItem(const cJSON *object, const char *string);
+CJSON_PUBLIC(cJSON *) cJSON_GetObjectItemCaseSensitive(const cJSON *object, const char *string);
+CJSON_PUBLIC(int) cJSON_HasObjectItem(const cJSON *object, const char *string);
 /* For analysing failed parses. This returns a pointer to the parse error. You'll probably need to look a few chars back to make sense of it. Defined when cJSON_Parse() returns 0. 0 when cJSON_Parse() succeeds. */
-extern const char *cJSON_GetErrorPtr(void);
+CJSON_PUBLIC(const char *) cJSON_GetErrorPtr(void);
 
 /* These calls create a cJSON item of the appropriate type. */
-extern cJSON *cJSON_CreateNull(void);
-extern cJSON *cJSON_CreateTrue(void);
-extern cJSON *cJSON_CreateFalse(void);
-extern cJSON *cJSON_CreateBool(int b);
-extern cJSON *cJSON_CreateNumber(double num);
-extern cJSON *cJSON_CreateString(const char *string);
+CJSON_PUBLIC(cJSON *) cJSON_CreateNull(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateTrue(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFalse(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateBool(int b);
+CJSON_PUBLIC(cJSON *) cJSON_CreateNumber(double num);
+CJSON_PUBLIC(cJSON *) cJSON_CreateString(const char *string);
 /* raw json */
-extern cJSON *cJSON_CreateRaw(const char *raw);
-extern cJSON *cJSON_CreateArray(void);
-extern cJSON *cJSON_CreateObject(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateRaw(const char *raw);
+CJSON_PUBLIC(cJSON *) cJSON_CreateArray(void);
+CJSON_PUBLIC(cJSON *) cJSON_CreateObject(void);
 
 /* These utilities create an Array of count items. */
-extern cJSON *cJSON_CreateIntArray(const int *numbers, int count);
-extern cJSON *cJSON_CreateFloatArray(const float *numbers, int count);
-extern cJSON *cJSON_CreateDoubleArray(const double *numbers, int count);
-extern cJSON *cJSON_CreateStringArray(const char **strings, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateIntArray(const int *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateFloatArray(const float *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateDoubleArray(const double *numbers, int count);
+CJSON_PUBLIC(cJSON *) cJSON_CreateStringArray(const char **strings, int count);
 
 /* Append item to the specified array/object. */
-extern void cJSON_AddItemToArray(cJSON *array, cJSON *item);
-extern void	cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
+CJSON_PUBLIC(void) cJSON_AddItemToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(void) cJSON_AddItemToObject(cJSON *object, const char *string, cJSON *item);
 /* Use this when string is definitely const (i.e. a literal, or as good as), and will definitely survive the cJSON object.
  * WARNING: When this function was used, make sure to always check that (item->type & cJSON_StringIsConst) is zero before
  * writing to `item->string` */
-extern void	cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item);
+CJSON_PUBLIC(void) cJSON_AddItemToObjectCS(cJSON *object, const char *string, cJSON *item);
 /* Append reference to item to the specified array/object. Use this when you want to add an existing cJSON to a new cJSON, but don't want to corrupt your existing cJSON. */
-extern void cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
-extern void	cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
+CJSON_PUBLIC(void) cJSON_AddItemReferenceToArray(cJSON *array, cJSON *item);
+CJSON_PUBLIC(void) cJSON_AddItemReferenceToObject(cJSON *object, const char *string, cJSON *item);
 
 /* Remove/Detatch items from Arrays/Objects. */
-extern cJSON *cJSON_DetachItemFromArray(cJSON *array, int which);
-extern void   cJSON_DeleteItemFromArray(cJSON *array, int which);
-extern cJSON *cJSON_DetachItemFromObject(cJSON *object, const char *string);
-extern void   cJSON_DeleteItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromArray(cJSON *array, int which);
+CJSON_PUBLIC(cJSON *) cJSON_DetachItemFromObject(cJSON *object, const char *string);
+CJSON_PUBLIC(void) cJSON_DeleteItemFromObject(cJSON *object, const char *string);
 
 /* Update array items. */
-extern void cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem); /* Shifts pre-existing items to the right. */
-extern void cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
-extern void cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
+CJSON_PUBLIC(void) cJSON_InsertItemInArray(cJSON *array, int which, cJSON *newitem); /* Shifts pre-existing items to the right. */
+CJSON_PUBLIC(void) cJSON_ReplaceItemInArray(cJSON *array, int which, cJSON *newitem);
+CJSON_PUBLIC(void) cJSON_ReplaceItemInObject(cJSON *object,const char *string,cJSON *newitem);
 
 /* Duplicate a cJSON item */
-extern cJSON *cJSON_Duplicate(const cJSON *item, int recurse);
+CJSON_PUBLIC(cJSON *) cJSON_Duplicate(const cJSON *item, int recurse);
 /* Duplicate will create a new, identical cJSON item to the one you pass, in new memory that will
 need to be released. With recurse!=0, it will duplicate any children connected to the item.
 The item->next and ->prev pointers are always zero on return from Duplicate. */
 
 /* ParseWithOpts allows you to require (and check) that the JSON is null terminated, and to retrieve the pointer to the final byte parsed. */
 /* If you supply a ptr in return_parse_end and parsing fails, then return_parse_end will contain a pointer to the error. If not, then cJSON_GetErrorPtr() does the job. */
-extern cJSON *cJSON_ParseWithOpts(const char *value, const char **return_parse_end, int require_null_terminated);
+CJSON_PUBLIC(cJSON *) cJSON_ParseWithOpts(const char *value, const char **return_parse_end, int require_null_terminated);
 
-extern void cJSON_Minify(char *json);
+CJSON_PUBLIC(void) cJSON_Minify(char *json);
 
 /* Macros for creating things quickly. */
 #define cJSON_AddNullToObject(object,name) cJSON_AddItemToObject(object, name, cJSON_CreateNull())
@@ -173,7 +210,7 @@ extern void cJSON_Minify(char *json);
 /* When assigning an integer value, it needs to be propagated to valuedouble too. */
 #define cJSON_SetIntValue(object, number) ((object) ? (object)->valueint = (object)->valuedouble = (number) : (number))
 /* helper for the cJSON_SetNumberValue macro */
-extern double cJSON_SetNumberHelper(cJSON *object, double number);
+CJSON_PUBLIC(double) cJSON_SetNumberHelper(cJSON *object, double number);
 #define cJSON_SetNumberValue(object, number) ((object != NULL) ? cJSON_SetNumberHelper(object, (double)number) : (number))
 
 /* Macro for iterating over an array */

cJSON_Utils.c

@@ -115,7 +115,7 @@ static void cJSONUtils_PointerEncodedstrcpy(unsigned char *d, const unsigned cha
     *d = '\0';
 }
 
-char *cJSONUtils_FindPointerFromObjectTo(cJSON *object, cJSON *target)
+CJSON_PUBLIC(char *) cJSONUtils_FindPointerFromObjectTo(cJSON *object, cJSON *target)
 {
     int type = object->type;
     size_t c = 0;
@@ -171,7 +171,7 @@ char *cJSONUtils_FindPointerFromObjectTo(cJSON *object, cJSON *target)
     return NULL;
 }
 
-cJSON *cJSONUtils_GetPointer(cJSON *object, const char *pointer)
+CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON *object, const char *pointer)
 {
     /* follow path of the pointer */
     while ((*pointer++ == '/') && object)
@@ -499,7 +499,7 @@ static int cJSONUtils_ApplyPatch(cJSON *object, cJSON *patch)
     return 0;
 }
 
-int cJSONUtils_ApplyPatches(cJSON *object, cJSON *patches)
+CJSON_PUBLIC(int) cJSONUtils_ApplyPatches(cJSON *object, cJSON *patches)
 {
     int err = 0;
 
@@ -551,7 +551,7 @@ static void cJSONUtils_GeneratePatch(cJSON *patches, const unsigned char *op, co
     cJSON_AddItemToArray(patches, patch);
 }
 
-void cJSONUtils_AddPatchToArray(cJSON *array, const char *op, const char *path, cJSON *val)
+CJSON_PUBLIC(void) cJSONUtils_AddPatchToArray(cJSON *array, const char *op, const char *path, cJSON *val)
 {
     cJSONUtils_GeneratePatch(array, (const unsigned char*)op, (const unsigned char*)path, 0, val);
 }
@@ -671,7 +671,7 @@ static void cJSONUtils_CompareToPatch(cJSON *patches, const unsigned char *path,
     }
 }
 
-cJSON* cJSONUtils_GeneratePatches(cJSON *from, cJSON *to)
+CJSON_PUBLIC(cJSON *) cJSONUtils_GeneratePatches(cJSON *from, cJSON *to)
 {
     cJSON *patches = cJSON_CreateArray();
     cJSONUtils_CompareToPatch(patches, (const unsigned char*)"", from, to);
@@ -786,12 +786,12 @@ static cJSON *cJSONUtils_SortList(cJSON *list)
     return list;
 }
 
-void cJSONUtils_SortObject(cJSON *object)
+CJSON_PUBLIC(void) cJSONUtils_SortObject(cJSON *object)
 {
     object->child = cJSONUtils_SortList(object->child);
 }
 
-cJSON* cJSONUtils_MergePatch(cJSON *target, cJSON *patch)
+CJSON_PUBLIC(cJSON *) cJSONUtils_MergePatch(cJSON *target, cJSON *patch)
 {
     if (!patch || ((patch->type & 0xFF) != cJSON_Object))
     {
@@ -824,7 +824,7 @@ cJSON* cJSONUtils_MergePatch(cJSON *target, cJSON *patch)
     return target;
 }
 
-cJSON *cJSONUtils_GenerateMergePatch(cJSON *from, cJSON *to)
+CJSON_PUBLIC(cJSON *) cJSONUtils_GenerateMergePatch(cJSON *from, cJSON *to)
 {
     cJSON *patch = NULL;
     if (!to)

cJSON_Utils.h

@@ -1,14 +1,14 @@
 #include "cJSON.h"
 
 /* Implement RFC6901 (https://tools.ietf.org/html/rfc6901) JSON Pointer spec. */
-cJSON *cJSONUtils_GetPointer(cJSON *object, const char *pointer);
+CJSON_PUBLIC(cJSON *) cJSONUtils_GetPointer(cJSON *object, const char *pointer);
 
 /* Implement RFC6902 (https://tools.ietf.org/html/rfc6902) JSON Patch spec. */
-cJSON* cJSONUtils_GeneratePatches(cJSON *from, cJSON *to);
+CJSON_PUBLIC(cJSON *) cJSONUtils_GeneratePatches(cJSON *from, cJSON *to);
 /* Utility for generating patch array entries. */
-void cJSONUtils_AddPatchToArray(cJSON *array, const char *op, const char *path, cJSON *val);
+CJSON_PUBLIC(void) cJSONUtils_AddPatchToArray(cJSON *array, const char *op, const char *path, cJSON *val);
 /* Returns 0 for success. */
-int cJSONUtils_ApplyPatches(cJSON *object, cJSON *patches);
+CJSON_PUBLIC(int) cJSONUtils_ApplyPatches(cJSON *object, cJSON *patches);
 
 /*
 // Note that ApplyPatches is NOT atomic on failure. To implement an atomic ApplyPatches, use:
@@ -33,12 +33,12 @@ int cJSONUtils_ApplyPatches(cJSON *object, cJSON *patches);
 
 /* Implement RFC7386 (https://tools.ietf.org/html/rfc7396) JSON Merge Patch spec. */
 /* target will be modified by patch. return value is new ptr for target. */
-cJSON* cJSONUtils_MergePatch(cJSON *target, cJSON *patch);
+CJSON_PUBLIC(cJSON *) cJSONUtils_MergePatch(cJSON *target, cJSON *patch);
 /* generates a patch to move from -> to */
-cJSON *cJSONUtils_GenerateMergePatch(cJSON *from, cJSON *to);
+CJSON_PUBLIC(cJSON *) cJSONUtils_GenerateMergePatch(cJSON *from, cJSON *to);
 
 /* Given a root object and a target object, construct a pointer from one to the other. */
-char *cJSONUtils_FindPointerFromObjectTo(cJSON *object, cJSON *target);
+CJSON_PUBLIC(char *) cJSONUtils_FindPointerFromObjectTo(cJSON *object, cJSON *target);
 
 /* Sorts the members of the object into alphabetical order. */
-void cJSONUtils_SortObject(cJSON *object);
+CJSON_PUBLIC(void) cJSONUtils_SortObject(cJSON *object);