PCD COMMAND LINE COMPILER Custom Computer Services Inc (CCS), PCD COMMAND LINE COMPILER Datasheet - Page 120

• Manufacturer Part Number: PCD COMMAND LINE COMPILER
• Description: PCD C-COMPILER PIC24, DSPIC
• Manufacturer: Custom Computer Services Inc (CCS)
• Type: Compilerr

Specifications of PCD COMMAND LINE COMPILER

• For Use With/related Products: Microchip PIC24/dsPIC®
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• Other names: 429-1007

#DEFINE
Syntax:
Elements:
Purpose:
Examples:
Example Files:
Also See:
106
#DEFINE id text
#DEFINE id(x,y...) text
id is a preprocessor identifier, text is any text, x,y and so on are local preprocessor
identifiers, and in this form there may be one or more identifiers separated by commas.
Used to provide a simple string replacement of the ID with the given text from this
point of the program and on.
In the second form (a C macro) the local identifiers are matched up with similar identifiers
in the text and they are replaced with text passed to the macro where it is used.
If the text contains a string of the form #idx then the result upon evaluation will be
the parameter id concatenated with the string x.
If the text contains a string of the form #idx#idy then parameter idx is concatenated
with parameter idy forming a new identifier.
#define
a=a+BITS;
#define hi(x)
a=hi(a);
ex_stwt.c,
#UNDEF, #IFDEF,
or
ex_macro.c
BITS
//same as
//same as
8
(x<<4)
#IFNDEF
a=a+8;
a=(a<<4);