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Full Discussion: C++ function using strings
Top Forums Programming C++ function using strings Post 302743399 by kristinu on Wednesday 12th of December 2012 06:16:19 PM
Old 12-12-2012
C++ function using strings
I want to create a message function to be used as follows

Code:
string s1 = "Hello";
string s2 = "World";

error_notify ("Hello", "World");
error_notify (s1, "World");
error_notify ("Hello", s2);
error_notify (s1, s2);

char* c1 = "Hello";
char* c2 = "Hello";
error_notify ("Hello", s2);
error_notify (c1, "World");

This is what I have tried but am getting lot of errors.

Code:
void  error_notify (
  const char*  brief_msg,
  const char*  detailed_msg
) {
  cerr << "\nRUNTIME ERROR!  " << brief_msg << endl << detailed_msg << endl;
}

void  error_notify (
  const string  brief_msg,
  const string  detailed_msg
) {
  cerr << "\nRUNTIME ERROR!  " << brief_msg << endl << detailed_msg << endl;
}

---------- Post updated at 05:49 PM ---------- Previous update was at 05:28 PM ----------

I am also getting confused whether to use

Code:
string
string&
const string
const string&

in the argument list

---------- Post updated at 06:16 PM ---------- Previous update was at 05:49 PM ----------

I am going to stick with

Code:
const string&

which should be ok
 

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LEARN ABOUT REDHAT

cksum

cksum(n)							       cksum								  cksum(n)

NAME

       cksum - calculate a cksum(1) compatible checksum

SYNOPSIS

       package require Tcl 8.2

       package require cksum ?1.0?

       ::crc::cksum ?-format format? message

       ::crc::cksum ?-format format? -filename file

DESCRIPTION

       This  package  provides a Tcl-only implementation of the cksum(1) algorithm based upon information provided at in the GNU implementation of
       this program as part of the GNU Textutils 2.0 package.

COMMANDS

       ::crc::cksum ?-format format? message

       ::crc::cksum ?-format format? -filename file
	      The command takes string data or a file name and returns a checksum value calculated using the cksum(1)  algorithm.  The	result	is
	      formatted using the format(n) specifier provided or as an unsigned integer (%u) by default.

OPTIONS

       -filename name
	      Return a checksum for the file contents instead of for parameter data.

       -format string
	      Return the checksum using an alternative format template.

EXAMPLES

       % crc::cksum "Hello, World!"
       2609532967

       % crc::cksum -format 0x%X "Hello, World!"
       0x9B8A5027

       % crc::cksum -file cksum.tcl
       1828321145

SEE ALSO

       sum(n), crc32(n)

AUTHORS

       Pat Thoyts

KEYWORDS

       cksum, checksum, crc, crc32, cyclic redundancy check, data integrity, security

crc									1.0								  cksum(n)
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