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added Print function call for pre-allocated buffer

This commit is contained in:
Kyle Chisholm 2016-11-25 04:53:22 -05:00 committed by Max Bruckner
parent d0a9f46888
commit 23dafa4739
2 changed files with 12 additions and 0 deletions
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10
cJSON.c
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@ -886,6 +886,16 @@ char *cJSON_PrintBuffered(const cJSON *item, int prebuffer, cjbool fmt)
return print_value(item, 0, fmt, &p);
}
int cJSON_PrintMallocedBuffer(cJSON *item,char *buf,const int len, cjbool fmt)
{
char *out;
printbuffer p;
p.buffer = buf;
p.length = len;
p.offset = 0;
out = print_value(item,0,fmt,&p);
return (out != buf ? -1 : 0);
}
/* Parser core - when encountering text, process appropriately. */
static const char *parse_value(cJSON *item, const char *value, const char **ep)

2
cJSON.h
View File

@ -83,6 +83,8 @@ extern char *cJSON_Print(const cJSON *item);
extern 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);
/* Render a cJSON entity to text using a buffer already allocated in memory with length buf_len */
extern int cJSON_PrintMallocedBuffer(cJSON *item, char *buf, const int len, int fmt);
/* Delete a cJSON entity and all subentities. */
extern void cJSON_Delete(cJSON *c);