Delphi in a Nutshell

Name

$DebugInfo Compiler Directive

Syntax

{$D+}           // default
{$DebugInfo On} // default
{$D-}
{$DebugInfo Off}

Scope

File

Description

When $DebugInfo is enabled, the compiler generates line number information to help you debug the unit. Without the line number information, the only way you can debug the unit is from the CPU view.

To take maximum advantage of the debugger, you should also use the $LocalSymbols directive to store information about the types, variables, and subroutines in the unit.

The debug information is stored in the unit’s .dcu file and does not affect performance or the size of the final .exe or .dll file. The most common reason to disable $DebugInfo is when you are releasing .dcu files without the source code. In very large projects, you might save a little bit of time and disk space by disabling $DebugInfo, but in most cases, the savings are minuscule.

See Also

$DefinitionInfo Compiler Directive, $LocalSymbols Compiler Directive, $ReferenceInfo Compiler Directive