Integer types include byte, int, short, long,
Floating-point types include float (single precision) types and double constants.
2. Difference of value range: We can see that the maximum value of integer type is: 1, 844,674,407,370,955, 16 1, * * with 19 bits. The value range of float in floating point number is 39 bits 3.4E+38.
3. Difference in precision: Integer is an accurate numerical value, and floating-point number is often a seemingly value. For example, floating-point type only needs to ensure the accuracy of the first 6~7 digits. Such as: floating
f
=
123456789;
The values //8 and 9 may be inaccurate.
Extended data:
Other data types of C language:
I. Basic types
1, plastic type: int
, short
int，long
int，long
long
int(C99)，char，bool
2. Floating point type: floating point
, double, double-precision floating-point (float _ complex, double _ complex, long
long_comples)
Second, the enumeration type
Enumeration type
Three, empty type
empty
Four. Derived type
Pointer type
*, array type
, structure type
Structure, * * * object type
Union, function type
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