Developer Guide and Reference

Contents

Wmain

Determines whether a warning is issued if the return type of main is not expected.

Syntax

Linux:
-Wmain
-Wno-main
macOS:
-Wmain
-Wno-main
Windows:
None
Arguments
None
Default
-Wno-main
No warning is issued if the return type of
main
is not expected.
Description
This option determines whether a warning is issued if the return type of
main
is not expected.
Alternate Options
None

Product and Performance Information

1

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