What are the legal data type keywords provided by C language?

The legal data type keyword provided by the C language is "float", which is a floating-point data type used to store single-precision floating-point numbers or double-precision floating-point numbers. The single-precision value of the floating-point type has 4 Bytes, including a sign bit, an 8-bit binary exponent and a 23-bit mantissa.

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The legal data type keyword provided by the c language is "float ” is a floating-point data type, used to store single-precision floating-point numbers or double-precision floating-point numbers. Floating point numbers use IEEE format.

Single-precision values ​​of floating-point type have 4 bytes, including a sign bit, an 8-bit binary exponent, and a 23-bit mantissa. Since the high-order bit of the mantissa is always 1, it is not stored as a number. This representation gives float types a range of approximately -3.4E 38 ~ 3.4E 38 .

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The keywords of legal data types in C language are generally divided into: int (integer type), float (single precision type), double (double precision type) and char (Character type). In addition to these four basic types, there are also some data type modifiers, including long (long integer), short (short), signed (signed) and unsigned (unsigned).

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