Motorola DSP56800 Podręcznik Użytkownika Pobierz pdf (Strona 426)

100

101

Pragmas for the DSP56800 and DSP56800E

Pragma Reference

426

Targeting MC56F83xx/DSP5685x Controllers

warn_no_side_effect

Controls the issuing of warnings for redundant statements.

Prototype

#pragma warn_no_side_effect on | off | reset

Remarks

If you enable this pragma, the compiler issues a warning when it encounters a

statement that produces no side effect. To suppress this warning, cast the statement

with (void). Listing C.28

provides an example.

Listing C.28 Example of Pragma warn_no_side_effect

#pragma warn_no_side_effect on

void foo(int a,int b)

{

a+b; // WARNING: expression has no side effect

(void)(a+b); // void cast suppresses warning

}

This pragma does not correspond to any panel setting in the C/C++ Preprocessor

panel. To check this setting, use __option (warn_no_side_effect),

described in Checking Settings

. By default, this pragma is disabled.

warn_notinlined

Controls the issuing of warnings for functions the compiler cannot inline.

Prototype

#pragma warn_notinlined on | off | reset

Remarks

The compiler issues a warning for non-inlined inline function calls.

1 2 ... 421 422 423 424 425 426 427 428 429 430 431 ... 445 446

Komentarze do niniejszej Instrukcji

Brak uwag

Motorola DSP56800 Podręcznik Użytkownika Strona 426

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Procesory Motorola DSP56800