The following pragmas can be used to control diagnostic messages in the same ways as the corresponding command line options:
| Pragma | Option | Description |
|---|---|---|
| diag_suppress num | -pds=num[, num2, num3...] | Suppress diagnostic num |
| diag_remark num | -pdsr=num[, num2, num3...] | Treat diagnostic num as a remark |
| diag_warning num | -pdsw=num[, num2, num3...] | Treat diagnostic num as a warning |
| diag_error num | -pdse=num[, num2, num3...] | Treat diagnostic num as an error |
| diag_default num | n/a | Use default severity of the diagnostic |
| diag_push | n/a | Push the current diagnostics severity state to store it for later use. |
| diag_pop | n/a | Pop the most recent diagnostic severity state stored with #pragma diag_push to be the current setting. |
The syntax of the diag_suppress, diag_remark, diag_warning, and diag_error pragmas in C is:
| #pragma diag_xxx [=]num[, num2, num3...] |
Notice that the names of these pragmas are in lowercase.
The diagnostic affected (num) is specified using either an error number or an error tag name. The equal sign (=) is optional. Any diagnostic can be overridden to be an error, but only diagnostic messages with a severity of discretionary error or below can have their severity reduced to a warning or below, or be suppressed. The diag_default pragma is used to return the severity of a diagnostic to the one that was in effect before any pragmas were issued (i.e., the normal severity of the message as modified by any command-line options).
The diagnostic identifier number is output with the message when you use the -pden command line option. The following example suppresses a diagnostic message and then restores the previous diagnostics severity state:
#pragma diag_push
#pragma diag_suppress 551
#pragma CHECK_MISRA("-9.1")
#pragma diag_pop