how to correct this warning?

[mybm1]

Quote:

warning: format ‘%s’ expects argument of type ‘char *’, but argument 2 has type ‘char **’

[Lost User]

The message is telling you how to correct it; you must use a char* parameter for the %s format type. See http://msdn.microsoft.com/en-us/library/56e442dc.aspx[^].

[mybm1]

ok ,thnk u but for the parameter char ** what format we should declared to print?

[Lost User]

Read the documentation I gave you the link for; it describes all the available format types and what parameters they require. There is no format type that handles char**, for a very good reason.

[_Superman_]

The format %s is used to output a null terminated string. The variable it expects is a char*. I can think of 2 possibilities. Since you haven't posted any relevant code, I'm only guessing here. First guess is that you're trying to print a string and are using an extra & character -

char string[20];
printf("%s", &string); // The & is not needed here.

Second guess is that you've received a char** as a function argument and trying to print it.

void fun(char** arg)
{
printf("%s", *arg); // * is needed here.
}

It would be best if you can post the relevant code.

«_Superman_»  _I love work. It gives me something to do between weekends.

_Microsoft MVP (Visual C++) (October 2009 - September 2013)

Polymorphism in C