Accessing a pointer array

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Views: 162 | Replies: 1

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Join Date: Mar 2008

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sjgriffiths sjgriffiths is offline

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Accessing a pointer array

Mar 19th, 2008

Hello

I have the following pointer

char **pOutData;

This contains an array of strings.

How do i printf each element in of pOutData

Hope someone can help
best regards

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Join Date: Sep 2004

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Narue

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Re: Accessing a pointer array

Mar 19th, 2008

Assuming you're using an explicit size variable to store the number of strings:

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 c Syntax (Toggle Plain Text) 
int i;
 
for ( i = 0; i < n; i++ )
  printf ( "%s\n", pOutData[i] );
int i;

for ( i = 0; i < n; i++ )
  printf ( "%s\n", pOutData[i] );

A common alternative is using a null pointer as a sentinel. In that case, it would look like this:

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 c Syntax (Toggle Plain Text) 
char **p = pOutData;
 
while ( *p != NULL )
  printf ( "%s\n", *p++ );
char **p = pOutData;

while ( *p != NULL )
  printf ( "%s\n", *p++ );