The following table shows the compiler response associated with each level of message
severity. 
| Letter | Severity | Compiler Response | 
|---|---|---|
| I | Informational | Compilation continues. The message reports conditions found during compilation. | 
| W | Warning | Compilation continues. The message reports valid, but possibly unintended, conditions. | 
| Error | Compilation continues and object code is generated. Error conditions exist that the compiler can correct, but the program might not run correctly. | |
| S | Severe error | Compilation continues, but object code is not generated. Error conditions exist that the compiler cannot correct. | 
| U | Unrecoverable error | The compiler halts. An internal compiler error has been found. This message should be reported to your IBM service representative. | 
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Message and Listing Information
Compiler Message Format
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Compiler Return Codes
-qhalt
-W
