print_number: fix Off-By-One error

Thanks @liuyunbin for reporting this in #230
7 years ago · 4d84acf926
1 changed files with 1 additions and 1 deletions
--- a/cJSON.c
+++ b/cJSON.c
@ -512,7 +512,7 @@ static cJSON_bool print_number(const cJSON * const item, printbuffer * const out
    }

    /* reserve appropriate space in the output */
-    output_pointer = ensure(output_buffer, (size_t)length);
+    output_pointer = ensure(output_buffer, (size_t)length + sizeof(""));
    if (output_pointer == NULL)
    {
        return false;