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atexit

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C
 
Utilitários de apoio do programa
Término do programa
Original:
Program termination
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(C++11)
(C++11)
Comunicando com o meio ambiente
Original:
Communicating with the environment
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Sinais
Original:
Signals
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Tipos de sinais
Original:
Signal types
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Não-locais saltos
Original:
Non-local jumps
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Tipos
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Types
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Definido no cabeçalho <stdlib.h>
int atexit( void (*func)() );
Registra a função apontada pelo func a ser chamado ao término do programa normal (via exit() ou voltando de main()).
Original:
Registers the function pointed to by func to be called on normal program termination (via exit() or returning from main()).
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Chamando a função de vários segmentos não induz uma corrida de dados. A implementação deverá apoiar o registro de funções, pelo menos, 32.
Original:
Calling the function from several threads does not induce a data race. The implementation shall support the registration of at least 32 functions.
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Índice

[editar] Parâmetros

func -
ponteiro para uma função a ser chamada ao término do programa normal
Original:
pointer to a function to be called on normal program termination
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[editar] Valor de retorno

​0​ se o registro terá êxito valor diferente de zero, caso contrário.
Original:
​0​ if the registration succeeds, nonzero value otherwise.
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[editar] Exceções

noexcept specification:  
noexcept
  (desde C++11)

[editar] Exemplo

#include <stdlib.h>
#include <stdio.h>
 
void f1()
{
    puts("pushed first");
}
 
void f2()
{
    puts("pushed second");
}
 
int main()
{
    atexit(f1);
    atexit(f2);
}

Saída: 

pushed second
pushed first

[editar] Veja também

(C99)
registra uma função a ser chamada no momento da invocação quick_exit
Original:
registers a function to be called on quick_exit invocation
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(função) [edit]
C++ documentation for atexit
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