Getting Started Guide

  • XX.XX
  • 12/16/2019
  • Public Content

Get Started with the Intel® C++ Compiler 19.1 for

The Intel® C++ Compiler provides optimizations that help your applications to run faster Intel® 64 architectures, with support for the latest C and C++ language standards (including C++17). This compiler produces optimized code that can run significantly faster by taking advantage of the ever-increasing core count and vector register width in Intel® Xeon® processors and compatible processors. The Intel® Compiler will help you boost application performance through superior optimizations and Single Instruction Multiple Data (SIMD) vectorization, integration with Intel® Performance Libraries, and by leveraging the latest OpenMP* 5.0 parallel programming model.
Start using the compiler from the command line or within Xcode*.
The Intel C++ Compiler is available as part of the following suites:

Before You Begin

Before you can use this tool, you must first set the environment variables by sourcing the environment script using the initialization utility to initialize all the tools in one step:
From a terminal session, run:
source <install_dir>/bin/ intel64
is the directory structure containing the compiler
By default, the path for
<update number>
<packages number>

Option 1: Use the Command Line

Use the commands below to invoke the compiler from the command line.
  • For C source files:
    icc helloworld.c
  • For C++ source files:

Option 2: Use Xcode*

Follow the steps below to invoke the compiler from within Xcode*.
You must first create or choose an existing Xcode* project. These instructions assume you are using an existing project.
  1. Select the target you want to change and select
    Build Rules
  2. Add a new rule by selecting
    or using
    Editor > Add Build Rule
  3. Under
    , select
    C source files
    C++ source files
  4. Under
    , select
    ICC Intel® C++ Compiler 19.1
  5. Select the target to be built in the project editor under
  6. Select
    Product > Build

Next Steps

Find More: Intel® C++ Compiler

The Developer Guide and Reference contains information on:
  • How to use the command line
    or Xcode*
  • Support for the latest compiler technologies and architectures.
  • Compiler reference material, including options, program structures, class and math libraries, and much more
Information on product installation, new and changed features, and issues that are not described in the product documentation.
This link takes you an archive of Intel® C++ Compiler release notes on the Intel® Developer Zone.
Find the latest code samples and product support. Learn specific compiler optimizations, features, tools, and programming concepts.
Software product documentation on the Intel® Developer Zone.
Other Help
You can access general help for compiler options after setting up the environment by entering
at the command line.

Find More: Intel® Product Suites

The online training sites are an excellent resource for training on using the compiler in conjunction with your product suite.
Information on the product installation, new and changed features, and issues that are not described in the product documentation.
These links take you to the Intel® Developer Zone.
Code Samples and Tutorials
Code samples and corresponding tutorials. Learn specific compiler optimizations, features, tools, and programming concepts.
This document supplement contains information specific to Intel® System Studio.

Notices and Disclaimers

Intel, the Intel logo, Intel Atom, Intel Core, Intel Xeon Phi, VTune and Xeon are trademarks of Intel Corporation in the U.S. and/or other countries.
*Other names and brands may be claimed as the property of others.
© Intel Corporation.
This software and the related documents are Intel copyrighted materials, and your use of them is governed by the express license under which they were provided to you (
). Unless the License provides otherwise, you may not use, modify, copy, publish, distribute, disclose or transmit this software or the related documents without Intel's prior written permission.
This software and the related documents are provided as is, with no express or implied warranties, other than those that are expressly stated in the License.

Product and Performance Information


Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804