Developer Guide and Reference

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