Espaços nominais
Variantes
Acções

assert

Da cppreference.com
< c‎ | error

 
 
De tratamento de erros
Códigos de erro
Original:
Error codes
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Códigos de erro
errno
Afirmações
Original:
Assertions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
assert
 
Defined in header <assert.h>
#ifdef NDEBUG

#define assert(condition) ((void)0)
#else
#define assert(condition) /*implementation defined*/

#endif
A definição da macro assert depende de outra macro, NDEBUG, a qual não é definida pela biblioteca padrão.
Original:
The definition of the macro assert depends on another macro, NDEBUG, which is not defined by the standard library.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Se NDEBUG é definido como um nome de macro no ponto em que o código-fonte <assert.h> é incluída, então não faz nada assert.
Original:
If NDEBUG is defined as a macro name at the point in the source code where <assert.h> is included, then assert does nothing.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Se NDEBUG não está definido, em seguida, verifica assert se seu argumento (que deve ser do tipo escalar) compara igual a zero. Se isso acontecer, assert saídas aplicação específica informações de diagnóstico sobre a saída de erro padrão e chama abort(). A informação de diagnóstico é necessária de modo a incluir o texto de expression, bem como os valores das macros standard __FILE__, __LINE__ eo __func__ variável padrão.
Original:
If NDEBUG is not defined, then assert checks if its argument (which must have scalar type) compares equal to zero. If it does, assert outputs implementation-specific diagnostic information on the standard error output and calls abort(). The diagnostic information is required to include the text of expression, as well as the values of the standard macros __FILE__, __LINE__, and the standard variable __func__.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Índice

[editar] Parâmetros

condition -
expressão do tipo escalar
Original:
expression of scalar type
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Valor de retorno

(Nenhum)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[editar] Exemplo

#include <stdio.h>
#include <assert.h>
 
int main (int argc, char **argv)
{
	// Test if 0 is really equivalent to 0
	assert (0 == 0);
 
	// Test if 1 is different than 0...
	assert (1 == 0);
 
	return 0;
}

Output:

example: ex.c:10: int main(int, char**): Assertion `1 == 0' failed.
Aborted

[editar] Veja também

provoca finalização anormal do programa (sem limpeza)
Original:
causes abnormal program termination (without cleaning up)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(função) [edit]