Typedef vs #define

**Difference**

1) typedef is limited to giving symbolic names to types only, whereas #define can be used to define an alias for values as well, e.g., you can define 1 as ONE, 3.14 as PI, etc.
2) typedef interpretation is performed by the compiler where #define statements are performed by preprocessor.
3) #define should not be terminated with a semicolon, but typedef should be terminated with semicolon.
4) #define will just copy-paste the definition values at the point of use, while typedef is the actual definition of a new type.
5) typedef follows the scope rule which means if a new type is defined in a scope (inside a function), then the new type name will only be visible till the scope is there. In case of #define, when preprocessor encounters #define, it replaces all the occurrences, after that (No scope rule is followed).

Similar codes

0 vote139 views1 answer
Temperature in c programming
C
0 vote143 views1 answer
Best approach c menu terminal
C
0 vote149 views1 answer
Gemfile.lock`. It is likely that you need to grant write permissions for that path.
C
1 vote164 views1 answer
Pi in c language
C
0 vote165 views2 answers
Create role in psql with password
C
1 vote135 views1 answer
Unity read text file line by line
C
0 vote148 views1 answer
4 byte alignment c code
C
0 vote140 views1 answer
Object-fit not working
C
0 vote152 views2 answers
192.168.0.102
C
14 votes141 views1 answer
Turn a char into an int in c
C