Namespace
Varianti

longjmp

Da cppreference.com.
< c‎ | program

 
 
Programma di supporto utilità
Programma di terminazione
Original:
Program termination
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abort
exit
quick_exit(C++11)
_Exit(C++11)
Comunicante con l'ambiente
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Communicating with the environment
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Segnali
Original:
Signals
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Tipi di segnale
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Signal types
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SIGABRT
SIGFPE
SIGILL
SIGINT
SIGSEGV
SIGTERM
Non locali salti
Original:
Non-local jumps
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setjmp
longjmp
Tipi
Original:
Types
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jmp_buf
 
Defined in header <setjmp.h>
void longjmp( jmp_buf env, int status );
Carica il contesto di esecuzione env salvato da una precedente chiamata a setjmp. Questa funzione non restituisce. Il controllo viene trasferito al sito di chiamata del setjmp macro che ha istituito env. Che setjmp quindi restituisce il valore passato come status.
Original:
Loads the execution context env saved by a previous call to setjmp. This function does not return. Control is transferred to the call site of the macro setjmp that set up env. That setjmp then returns the value, passed as the status.
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Se la funzione che ha chiamato setjmp è uscito, il comportamento è indefinito (in altre parole, solo i salti lunghi fino lo stack di chiamate sono ammessi)
Original:
If the function that called setjmp has exited, the behavior is undefined (in other words, only long jumps up the call stack are allowed)
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Non ci sono distruttori per gli oggetti automatici sono chiamati. In caso di sostituzione di longjmp con throw e setjmp con catch eseguirà un distruttore non banale per qualsiasi oggetto automatico, il comportamento di longjmp tale non è definito.
Original:
No destructors for automatic objects are called. If replacing of longjmp with throw and setjmp with catch would execute a non-trivial destructor for any automatic object, the behavior of such longjmp is undefined.
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Indice

[modifica] Parametri

env -
variabile riferimento allo stato di esecuzione del programma salvato da setjmp
Original:
variable referring to the execution state of the program saved by setjmp
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status -
il valore da restituire da setjmp. Se è uguale a 0, 1 viene usato invece
Original:
the value to return from setjmp. If it is equal to 0, 1 is used instead
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[modifica] Valore di ritorno

(Nessuno)
Original:
(none)
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[modifica] Esempio

[modifica] Vedi anche

salva il contesto
Original:
saves the context
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(funzione macro) [edit]
C++ documentation for longjmp