• 19.1
  • 12/16/2019
  • Public Content
Contents

Wall

Enables warning and error diagnostics.

Syntax

Linux:
-Wall
macOS:
-Wall
Windows:
/Wall
Arguments
None
Default
OFF
Only default warning diagnostics are enabled.
Description
This option enables many warning and error diagnostics.
On Windows* systems, this option is equivalent to the
/W4
option. It enables diagnostics for all level 3 warnings plus informational warnings and remarks.
However, on Linux*
and
macOS*
systems, this option is similar to gcc option
-Wall
. It displays all errors and some of the warnings that are typically reported by gcc option
-Wall
. If you want to display all warnings, specify the
-w2
or
-w3
option.
If you want to display remarks and comments, specify the
-Wremarks
option.
The
Wall
,
-w
n
, and
/W
n
options can override each other. The last option specified on the command line takes precedence.
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