C语言中的符号(国外英文资料)
C语言中的符号(国外英文资料)
The symbol in C
The operator's type C operator can be divided into the following categories:
The arithmetic operator
For all kinds of numerical operations. Including the plus (+) and minus (-), multiply (*), in addition to (/), yu (or operator, %), since the increase (+ +), minus (-), a total of seven.
The relationship operator
For comparison. Including the greater than (>), less than ( =), less than or equal to (< =), and is not equal to six (! =).
Logical operators
For logical operations. Including (&), or (| |), not (!). Three.
Bit operation operator
The amount of the operation is performed by the binary digit. Including and (&), or (|), not (~) and an exclusive or (^), left (< >) six.
The assignment operator
Used for assignment operators, divided into simple assignment (=), composite arithmetic assignment (+ = - =, * = / =, % =) and compound operation assignment (& =, | = ^ =, >, > =, < < =) three categories, a total of 11 kinds.
The conditional operator
This is a triadic operator that is used for conditional evaluation (? :).
The comma operator
Used to combine several expressions into an expression ().
The pointer operator
To fetch the content (*) and take the address (&) two operations.
Find the byte operator
The number of bytes used to calculate the data type (sizeof).
Special operators
Parenthesis (), subscript [], member (-,.), etc.
The data type of C
Primitive type, type of structure, pointer type, empty type
Classification and characteristics of basic types
Type specification byte numeric range
Character char 1 C character set
Basic int 2-32768 ~ 32767
Short integer short int 2-32768 ~ 32767
Long integer long int 4-214783648 ~ 214783647
Unsigned unsigned 2 0 ~ 65535
Unsigned long integer unsigned long 4 0 ~ 4294967295
Single precision float 4 3/4e - 38 ~ 3/4e + 38
Double precision double 8 1/7E - 308 ~ 1/7E + 308
3. Constant suffix
L or L long integer
U or U has no s
