AN3350 datasheet(159/185 Pages) STMICROELECTRONICS

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AN3350

Pragmas for preprocessing

Doc ID 018512 Rev 2

159/185

Remarks

If you enable this pragma, #line directives appear in preprocessing output. The compiler

also adjusts line spacing by inserting empty lines.

Use this pragma with the command-line compiler’s -E option to make sure that #line

directives are inserted in the preprocessor output.

By default, this pragma is off.

20.8

macro_prepdump

Controls whether the compiler emits #define and #undef directives in preprocessing

output.

Syntax

#pragma macro_prepdump on | off | reset

Remarks

Use this pragma to help unravel confusing problems like macros that are aliasing identifiers

or where headers are redefining macros unexpectedly.

20.9

msg_show_lineref

Controls diagnostic output involving #line directives to show line numbers specified by the

#line

directives in error and warning messages.

Syntax

#pragma msg_show_lineref on | off | reset

Remarks

By default, this pragma is on.

20.10

msg_show_realref

Controls diagnostic output involving #line directives to show actual line numbers in error

and warning messages.

Syntax

#pragma msg_show_realref on | off | reset

Remarks

By default, this pragma is on.

AN3350 Datasheet(PDF) 159 Page - STMicroelectronics