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Full Discussion: How to get the sizeof char pointer
Top Forums Programming How to get the sizeof char pointer Post 302322207 by SamRoj on Wednesday 3rd of June 2009 06:00:36 AM
Old 06-03-2009
How to get the sizeof char pointer
The below code throws the error, since the size of x = 19 is not passed to the cstrCopy function.

using namespace std;
static void cstrCopy(char *x, const char*y);
int main ()
{
char x[19];
const string y = "UNIX FORUM";
cstrCopy(x,y.c_str());
return 0;
}
void cstrCopy(char *x, const char *y)
{
if(strlen(y) >= sizeof(x)) {
throw errorException;
}
strncpy(x, y, sizeof(x));
}


How to pass the size of char pointer to a function.?
Please help.
 

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LEARN ABOUT DEBIAN

rudecgi

rudecgi(3)							   User Manuals 							rudecgi(3)

NAME

       rudecgi - access formdata in CGI applications

SYNOPSIS

       #include <rude/cgi.h>

       rude::CGI CGI();

       static void finish();

       static const char *version();

       static void setPathDelimiter(char delimiter);

       static void addPathMapName(const char *pathname );

       static void setPathMapVoid(const char *emptyname);

       static void parsePathMap(bool shouldParse);

       static void parsePath(bool shouldParse);

       static void parseCookies(bool shouldParse);

       static void maxPostLength(long bytes);

       void setCaseSensitive(bool isCaseSensitive);

       int numValues() const;

       int numValues(const char *fieldname) const;

       const char *fieldnameAt(int position) const;

       bool exists(const char *fieldname) const;

       bool isFile(int index) const;

       bool isFile(const char *fieldname) const;

       bool isFile(const char *fieldname, int position);

       const char *datasource(int index) const;

       const char *datasource(const char *fieldname) const;

       const char *datasource(const char *fieldname, int position) const;

       const char * operator[](const char *fieldname);

       const char * operator[](int x);

       const char *value(int index) const;

       const char *value(const char *fieldname) const;

       const char *value(const char *fieldname, int position) const;

       const char *length(int index) const;

       const char *length(const char *fieldname) const;

       const char *length(const char *fieldname, int position) const;

       const char *contenttype(int index) const;

       const char *contenttype(const char *fieldname) const;

       const char *contenttype(const char *fieldname, int position) const;

       const char *filename(int index) const;

       const char *filename(const char *fieldname) const;

       const char *filename(const char *fieldname, int position) const;

       const char *filepath(int index) const;

       const char *filepath(const char *fieldname) const;

       const char *filepath(const char *fieldname, int position) const;

       std::ostream& operator<<(std::ostream& os,const CGI& cgi);

DESCRIPTION

       The RudeCGI library is used to access formdata within C++ CGI applications.

EXAMPLES

       Examples, how-to's and tutorials can also be found at the rudeserver.com website

       Basic Usage

       #include <rude/cgi.h> #include <iostream>

       using namespace std; using namespace rude;

       int main(void) {
	 // Obtain the cgi instance
	 //
	 CGI cgi;

	 // Print out standard CGI HTTP Response header
	 //
	 cout << "Content-Type: text/html0;

	 // Print out HTML
	 //
	 cout << "<html><body>"
	      << "You selected the color: " ;

	 // use the cgi object to obtain form data
	 //
	 cout << cgi["color"];

	 cout << "</body></html>";

	 return 0; }

SEE ALSO

       rudeconfig(3), rudedatabase(3), rudesocket(3), rudesession(3)

REPORTING PROBLEMS

       Before	reporting   a  problem, please check the rudeserver.com web site to verify that you have the latest version of rudecgi; otherwise,
       obtain the latest version and see if the problem still exists.  Please read the	FAQ at:

		     http://www.rudeserver.com/

       before asking for help.	Send questions and/or comments to  matt@rudeserver.com

AUTHORS

       Copyright (C) 2000 Matthew Flood (matt@rudeserver.com)

       This  software is provided "as-is," without any express or implied warranty.  In no event will the authors be held liable for  any  damages
       arising from the use of this software.  See the distribution directory with respect  to	requirements  governing  redistribution. Thanks to
       all the people who reported problems and suggested various improvements in rudecgi; who are too numerous to cite here.

Version 4.1.1							 January 11, 2006							rudecgi(3)
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