Intel® oneAPI DPC++/C++ Compiler Developer Guide and Reference

Development Reference Guides

Contents

Specify Compiler Files

Specify Include Files

The
Intel® oneAPI
DPC++/C++
 Compiler
 searches the default system areas for include files and items specified by the
I
 compiler option. The compiler searches directories for include files in the following order:
  1. Directories specified by the
    I
     option
  2. Directories specified in the environment variables
  3. Default include directories
Use the
X
(Windows*) or
-nostdinc
 (Linux*)
 option to remove the default directories from the include file search path.
For example, to direct the compiler to search the path
/alt/include
 instead of the default path, do the following:
For C/C++ projects: 
// Linux
icpx -X -I/alt/include prog1.cpp
// Windows
icx /X /I\alt\include prog1.cpp
For DPC++ projects: 
// Linux
dpcpp -nostdinc -I/alt/include prog1.cpp
// Windows
dpcpp-cl /X /I\alt\include prog1.cpp

Specify Assembly Files

You can use the
/Fa
 option (Windows*)
 or
-S
 and
-o
 options (Linux*)
to specify an alternate name for an assembly file. The compiler generates an assembly file named
myasm.asm
 (Windows)
 or
myasm.s
 (Linux)
.
For C/C++ projects: 
// Linux
icpx -S -omyasm.s x.cpp 
// Windows
icx /Famyasm x.cpp
For DPC++ projects: 
// Linux
dpcpp -S -omyasm.s x.cpp 
// Windows
dpcpp-cl /Famyasm x.cpp

Specify Object Files

You can use the
/Fo
 option (Windows*)
 or
-c
 and
-o
 options (Linux*)
 to specify an alternate name for an object file. In this example, the compiler generates an object file name
myobj.obj
 (Windows)
 or
myobj.o
 (Linux)
.
For C/C++ projects: 
// Linux
icpx -c -omyobj.o x.cpp 
// Windows
icx /Fomyobj x.cpp
For DPC++ projects: 
// Linux
dpcpp -c -omyobj.o x.cpp 
// Windows
dpcpp-cl /Fomyobj x.cpp

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.