Diagnostics that are errors in
are downgraded to warnings, where possible. It is sometimes not
possible for the compiler to downgrade a strict error, for example,
where it cannot construct a legitimate program to recover.
--strict_warnings is in force and a
violation of the relevant ISO standard occurs, the compiler normally
issues a warning message.
The severity of diagnostic messages can be controlled using the --diag_error, --diag_remark, and --diag_warning options.
In some cases, the compiler issues an error message instead of a warning when it detects something that is strictly illegal, and terminates the compilation. For example:
#ifdef $Super$ extern void $Super$$__aeabi_idiv0(void); /* intercept __aeabi_idiv0 */ #endif
Compiling this code with
an error if you do not use the