sample program
#include <iostream>
#include <vector>
using namespace std;
int find(char*& value,char** arr,int size)
{
for(int i = 0;i < size;i++)
{
if(strcmp(arr[i],value) == 0)
return i;
}
}
int main()
{
char* word = "two";
char* arr[4] = {"one","two","t hree","four"};
int res = find(word,arr,4 );
cout << res;
}
the above program works fine even if the find was defined as follows
int find(char* value,char** arr,int size)
{
for(int i = 0;i < size;i++)
{
if(strcmp(arr[i],value) == 0)
return i;
}
}
It will be of great help if someone can tell me the difference b/w
char* and char&*
Thanks
Geaves 3 20824
In article <11************ **********@i3g2 000cwc.googlegr oups.com>,
"ge*****@gmail. com" <ge*****@gmail. comwrote:
It will be of great help if someone can tell me the difference b/w
char* and char&*
void exampleA( const char* value )
{
value = "exampleA";
}
void exampleB( const char*& value )
{
value = "exampleB";
}
int main()
{
char* value = "main";
exampleA( value );
assert( strcmp( value, "main" ) == 0 );
exampleB( value );
assert( strcmp( value, "exampleB" ) == 0 );
}
Hope that helps. ge*****@gmail.c om posted:
It will be of great help if someone can tell me the difference b/w
char* and char&*
char*: A pointer to a char.
char*&: A reference to a pointer to a character.
int main()
{
char c = 'a'; /* This is a char */
char *p = &c; /* This is a pointer to a char */
char *&rp = p; /* This is a reference to a pointer to a char */
/* Now "rp" and "p" are the exact same object.
You can confirm this with simple tests: */
if(p == rp) DoSomething();
if(&p == &rp) DoSomething();
}
--
Frederick Gotham
Thank You
Geaves
Frederick Gotham wrote:
ge*****@gmail.c om posted:
It will be of great help if someone can tell me the difference b/w
char* and char&*
char*: A pointer to a char.
char*&: A reference to a pointer to a character.
int main()
{
char c = 'a'; /* This is a char */
char *p = &c; /* This is a pointer to a char */
char *&rp = p; /* This is a reference to a pointer to a char */
/* Now "rp" and "p" are the exact same object.
You can confirm this with simple tests: */
if(p == rp) DoSomething();
if(&p == &rp) DoSomething();
}
--
Frederick Gotham
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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==========================================
Windows 2000 Professional
CYGWIN_NT-5.0 1.5.4(0.94/3/2)
GNU g++ version 3.2 20020927 (prerelease)
GNU objdump 2.14.90 20030901
==========================================
We can see that the same assembly code is generated for
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