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State and explain any 4 predefined data types in C plus plus programming?
Wiki User
∙ 10y ago
A char is always 1 byte long, but may be signed or unsigned depending on the implementation. Explicitly signed or unsigned char types are treated as being independent types from the implicit char type (3 separate types).
A short (or short int) is at least 2 bytes long while a long (or long int) is at least 4 bytes long. Both are implementation-dependent with regard their actual size and sign, but, like char, may be explicitly signed.
Char, short and long are used to store integers (whole numbers). A char can store signed values in the range -128 to +127, or unsigned values in the range 0 to 255.
A double is at least 8 bytes long while its shorter counterpart, a float, is at least 4 bytes long. Both are implicitly signed, floating point values.
To determine the length of any type (including predefined types) us the sizeof operator.
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∙ 10y ago
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