Error severity

Compilation errors can have the following severity levels (from the highest to the lowest):

U

An unrecoverable error. Compilation failed because of an internal compile-time error.

S

A severe error. Compilation failed due to one of the following:

• An unrecoverable program error has been detected. Processing of the source file stops, and XL Fortran does not produce an object file. You can usually correct this error by fixing any program errors that were reported during compilation.
• Conditions exist that the compiler could not correct. An object file is produced; however, you should not attempt to run the program.
• An internal compiler table has overflowed. Processing of the program stops, and XL Fortran does not produce an object file.
• An include file does not exist. Processing of the program stops, and XL Fortran does not produce an object file.

E

An error that the compiler can correct. The program should run correctly.

W

Warning message. It does not signify an error but may indicate some unexpected condition.

L

Warning message that was generated by one of the compiler options that check for conformance to various language levels. It may indicate a language feature that you should avoid if you are concerned about portability.

I

Informational message. It does not indicate any error, just something that you should be aware of to avoid unexpected behavior or to improve performance.

By default, the compiler stops without producing output files if it encounters a severe error (severity S). However, you can control how the messages are generated by using the following options:

• You can make the compiler stop for less severe errors by specifying a different severity with the -qhalt option. For example, with -qhalt=e, the compiler stops if it encounters any errors of severity E or higher severity. This technique can reduce the amount of compilation time that is needed to check the syntactic and semantic validity of a program.
• You can limit low-severity messages without stopping the compiler by using the -qflag option.
• You can stop compilation when a specified error message is generated by using the -qhaltonmsg option.
• You can stop compilation when a specified number of errors of a specified minimum severity level is reached by using the -qmaxerr option.
• If you simply want to prevent specific messages from going to the output stream, see -qsuppress.