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Guest --Bruno --

errno

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Guest --Bruno --

Porque que o seguinte código retorna este erro: Segmentation fault (core dumped)

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>

const char *descricao[] = {"Operação não permitida", "Arquivo ou diretório inexistente"};

const char *abrir_arquivo(char *arquivo)
{
   FILE *fp;
   if ((fp = fopen(arquivo, "r")) == NULL)
      return descricao[errno];   
}

int main (void)
{
   printf("%s\n", abrir_arquivo("asdasdasd"));
   return 1;
}

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Guest Visitante

olha eu alterei poquinha coisa e num vi erro nenhum veja:

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>

const char *descricao[] = {"Operacao não permitida", "Arquivo ou diretorio inexistente"};

const char *abrir_arquivo(char *arquivo)
{
   FILE *fp;
   fp = fopen (arquivo,"w");
   if(fp==NULL) return descricao[errno];
}

int main (void)
{
   printf("%s\n", abrir_arquivo("asdasdasd"));
   return 0;
}

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