json memory usage

json_memory_usage.cpp

#include "dist/json/json.h"

int main(void){
    Json::Reader reader;
    Json::Value rootJson;
    bool parseResult = reader.parse(" \
            \"areas\" : [                                           \
            {\
            \"background_image\" : \"background_cave\",\
            \"description\" : \"desc\",\
            \"end_at\" : 1585699200,\
            \"id\" : 1,\
            \"name\" : \"チュートリアル\",\
            \"prev_area_id\" : null,\
            \"quests\" : [\
            {\
            \"id\" : 111,\
            \"name\" : \"quest_1_1\",\
            \"prev_quest_id\" : null\
            },\
            {\
            \"id\" : 112,\
            \"name\" : \"quest_1_2\",\
            \"prev_quest_id\" : null\
            },\
            {\
                \"id\" : 113,\
                    \"name\" : \"quest_1_3\",\
                    \"prev_quest_id\" : null\
            }\
            ],\
                \"start_at\" : 1396310400,\
                \"wday\" : [],\
                \"wday_end_at\" : 946771140,\
                \"wday_start_at\" : 946684860\
            }\
            ]\
   ", rootJson);

    while (1){
        ;
    }
    return 0;
}

memory usage increase by 20KB when the json part is enabled

100KB超えてないから気にしないことにしようかｗ