TAL Reference Manual

Compiler Directives

TAL Reference Manual—526371-001

16-96

Usage Considerations

WARN or NOWARN can appear in the compilation command or anywhere in the

source code.

To print selected warnings, you must specify WARN before any NOWARN directives. If

you specify NOWARN first, any subsequent WARN warning-number directives have no

effect.

You can use NOWARN when a compilation produces a warning and you have

determined that no real problem exists. Before the source line that produces the

warning, specify NOWARN and the number of the warning you want suppressed.

Following that source line, specify a WARN directive.

NOWARN Statistics

If NOWARN is in effect, the compiler records the number of suppressed and

unsuppressed warnings. The compilation statistics at the end of the compiler listing

include the following counts:

Number of unsuppressed compiler warnings = count

Number of warnings suppressed by NOWARN = count

Unsuppressed compiler warnings are compiler warnings that are not suppressed by

NOWARN directives. The summary does not report the location of the last compiler

warning.

If no compiler errors and no unsuppressed compiler warnings occur, the completion

code is zero.

Example of WARN Directive

This example specifies that the compiler does not print warning message 12:

?NOWARN 12