Type change to long long

[b17460904]

I want to using unix millisecond timestamp as Jason vale,but it seems like the type is long, it will overflow, how to change long type to long long type? Thanks.

[bblanchon]

Hello @b17460904,

You can define ARDUINOJSON_USE_LONG_LONG to 1 to switch to long long.

[b17460904]

Hi, bblanchon,

Thank for your help. After define ARDUINOJSON_USE_LONG_LONG to 1, the program have an error " /Parse.hpp:50:30: error: 'strtoull' was not declared in this scope return strtoull(s, NULL, 10);".
Are there any criteria for using long long format ?
I'm trying to use Arduino Mega + WiFi101 shield as socket client to sending Jason format string, one of the key:value pair is unixtime_ms : long long.

[bblanchon]

Hi @b17460904,

This means that the Arduino Core for AVR has not been updated for long long.

I plan on dropping strtoul() in the next revision anyway.
Until then, I'm afraid I don't have any workaround 😞

[b17460904]

Hi @bblanchon ,

OK, I Know. Thanks for your kindly response.