Data type byte value

i was just wondering what the size of the basic variables are in c++.

INT
CHAR
DOUBLE
FLOAT

THanks

ps the reason for this question is im trying to send data to a microcontroler throught the serial port and i need to know how many bytes are send and read when i send them thought the serial port so that i can configure my packet .

thanks again in advance

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Data type byte value

PeterPanTech
It depends on the implementation, but since your on the Microsoft forums, I'll assume your using MSVC++.

int = 4 bytes (32-bits)
char = 1 byte (8-bits)
double = 8 bytes (64-bits)
float = 4 bytes (32-bits)
perhelge201
Correct, more on this on http://msdn.microsoft.com/library/default.asp url=/library/en-us/vclang/html/vcrefcpluspluslanguagereference.asp

Nikola
Data type byte value

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Data type byte value

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Visual C++

Data type byte value

Data type byte value

PeterPanTech

perhelge201