Intel® C++ Compiler 16.0 User and Reference Guide
Defines a macro name that can be associated with an optional value.
Linux and OS X: | -Dname[=value] |
Windows: | /Dname[=value] |
name |
Is the name of the macro. |
value |
Is an optional integer or an optional character string delimited by double quotes; for example, Dname=string. |
OFF |
Only default symbols or macros are defined. |
Defines a macro name that can be associated with an optional value. This option is equivalent to a #define preprocessor directive.
If a value is not specified, name is defined as "1".
On Linux* and OS X* systems, if you are not specifying a value, do not use D for name, because it will conflict with the -DD option.
Visual Studio: Preprocessor > Preprocessor Definitions
Eclipse: Preprocessor > Preprocessor Definitions
Xcode: Preprocessor > Preprocessor Definitions
None
To define a macro called SIZE with the value 100, enter the following command:
On Windows* systems:
icl /DSIZE=100 prog1.cpp
On Linux* systems:
icpc -DSIZE=100 prog1.cpp
On OS X* systems:
icl++ -DSIZE=100 prog1.cpp //with CLANG compiler
icpc -DSIZE=100 prog1.cpp //with EDG compiler
If you define a macro, but do not assign a value, the compiler defaults to 1 for the value of the macro.