[PIC] Mikroelektronika MikroC

[Adamsonics]

Hello Guys,

Please, I want someone to help me explain the meaning and uses of the following codes if possible with example:

(1) char old state = 0
(2) char oldstate2 = 0
(3) char oldstate = 1
(4) oldstate = 0
(5) oldstate = 1
(6) oldstate++;
(7) enum outputs {UTILITY_GEN = 0,GEN2_SHUTOFF = 1,GEN1_GEN2 = 2};

 

[FvM]

There's nothing mikroC specific with your specification, just plain C language. Any C text book or tutorial has the answer.
I'm still using Kernighan + Ritchie, The C Programming Language.

 

[Aussie Susan]

As written (1) will generate a syntax error as there is a space between "old" and "state".
Similarly, (1) to (5) are all missing the trailing semicolon but that could simply be a transcription error.
If (1) and (3) appear in the same source file (as seen by the compiler) at the same level, and the error I mentioned above is corrected for (1), then the compiler will complain of a duplicate definition. However without seeing the code snippets in context it is almost impossible to tell.
Susan

 

[Adamsonics]

Thank you FvM and Aussie Susan for your response. Please, what I want is the meaning and how to use the undermentioned codes. I have read some books but I couldn't comprehend their meaning and uses. Guys, kindly assist me with their meaning, uses and if possible with example:

(1) char oldstate = 0;
(2) char oldstate2 = 0;
(3) char oldstate = 1;
(4) oldstate = 0;
(5) oldstate = 1;
(6) oldstate++;
(7) enum outputs {UTILITY_GEN = 0,GEN2_SHUTOFF = 1,GEN1_GEN2 = 2};

 

[alexan_e]

What you ask can be easily found in any C textboox. Take a look https://en.wikibooks.org/wiki/C_Programming/Variables , it explains Declaring, Initializing, Assigning Variables and naming as well.

As for the ++ meaning search for C operators, for example https://www.tutorialspoint.com/cprogramming/c_operators.htm

For enumerator type (enum) you can check https://en.wikipedia.org/wiki/Enumerated_type#C

 

[KlausST]

Hi,

It seems to be very basic problem (that I actually don't see)

I'm not familiar with C, but I try to describe. (Any C specialist please correct any mistakes.)

Example:
"char oldstate = 0; "
The whole line is a variable declaratio with default value setup
* "char" is a variable type. Character = one byte
* "oldstate" is the variable name
* "=" is the operator to initialize the variable with a value
* "0" is the initial value of the variable.

Klaus

 

[FvM]

1-3 variable declarations with initialisation
4-5 simple variable assignments to constant values
6 variable increment operation
7 declaration of a variable of the enum type

Examples and further explanations are in the above mentioned books.