#include <stdio.h>
#include <stdlib.h>
#include <cjson/cJSON.h>

#define JSON_RAW "{\"number\":3000000000,\"ulonglong\":\"10000000000000000000\",\"hugeint\":\"1000000000000000000000000000000\"}"

int main()
{
	cJSON *overint32, *ulonglong;
	cJSON *json = cJSON_Parse(JSON_RAW);
	overint32 = cJSON_GetObjectItemCaseSensitive(json, "number");

	if (cJSON_IsNumber(overint32)) {
		printf("IsNumber. valueint=%d, valuedouble=%f, valuestring=\"%s\"\n", overint32->valueint, overint32->valuedouble, overint32->valuestring);
	}

	ulonglong = cJSON_GetObjectItemCaseSensitive(json, "ulonglong");

	if (cJSON_IsString(ulonglong)) {
		char *endptr;
		unsigned long long int ull = strtoull(ulonglong->valuestring, &endptr, 10);
		printf("IsString. valuestring=\"%s\", unsigned long long int = %llu\n", ulonglong->valuestring, ull);
	}

	/*
	typedef struct __uint256_t { char arr[32]; } __uint256_t;
	hugeint = cJSON_GetObjectItemCaseSensitive(json, "hugeint");
	// Custom integral number interpreter
	__uint256_t value = custom_strtoint(hugeint->valuestring);
	*/

	cJSON_Delete(json);

	return 0;
}