This option sets diagnostic messages that have the specified tags to warning severity.
The --diag_warning option behaves analogously to --diag_errors, except that the compiler sets the diagnostic messages having the specified tags to warning severity rather than error severity.
Note
This option has the #pragma equivalent #pragma diag_warning.
Syntax
--diag_warning=tag[,tag,...]
Where tag can be:
a diagnostic message number to set to warning severity
error, to downgrade the severity of all downgradeable errors to warnings.
Example
--diag_warning=A1234,error causes message A1234 and all downgradeable errors to be treated as warnings, providing changing the severity of A1234 is permitted.