CVAR
| Global C-script variable | |
| Inputs(0) | |
| Parameters(1) | p1 |
| Default | p1=0, |
| Text1 | Variable |
| Text2 | |
| Select from | Components/Blocks/Cscript&Expression |
| Function | In the CVAR block you define a global variable which is declared in all C-scripts defined by all the CSCRIPT blocks. In the C-Script block you can define C code to create your own blocks. The C code is interpreted, so no external compiler is required. Inside the C-script block local variables are declared. Global variables are defined in the block CVAR. |
| Special | Example of a simple adder: In a CVAR block the global variable iGlobal is defined at text1. Its initial value is defined as parameter p1 The value defined in the block CVAR is declared global in the entire scope of each C-script. Defined in the CVAR block: (int iGlobal=42;) p1 = 42 Defined in the Cscript block: The value of the local variable iCount is finally passed into the global variable iGlobal fro mthe CVAR block. The output of the CVAR block is equal to the value of the global variable. Since ANSI C is case-sensitive, lowercase variables and uppercase variables are not equal, so a<>A and iCount<>icount.See the tutorial on the C-Script for more details on the syntax of the C-script. |