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Help with find of string library

 
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Help with find of string library
emi
16 May, 2007 - 04:15 AM
Post #1

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Hello everyone,
I am writing a code at the moment where I whant to find a substring in a string. I am using Microsoft Visual Studio C++ 6.0. My problem is that I am using method find of the string library and something is going whrong. My code is something like that:

#include <string.h>
#include <iostream.h>
main()
{
char* st;
strcpy(st,"Hello, can you find Word1?");
unsigned int position =unsigned int(st.find("Word1"));
cout << "First occurrence of Ben was found at: " << position << endl;
}

And I keep getting those 2 messages:
error C2228: left of '.find' must have class/struct/union type

fatal error C1903: unable to recover from previous error(s); stopping compilationI'm freaked out, I trieded to run it on another machine but it was the same. Any help would be greate!!!!!!!!!
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qdoom
RE: Help With Find Of String Library
16 May, 2007 - 04:56 AM
Post #2

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Joined: 31 Aug, 2006
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Well, if you're using <string> libarary, why are you using char*?
Try changing char* to string. strcpy won't work then though, so you need to change that too.

CODE
//Compiled with Dev-Cpp.

#include <string>
#include <iostream>

using namespace std;

main()
{
string st;
st = "Hello, can you find Word1?";
int position = int(st.find("Word1"));
cout << "First occurrence of Ben was found at: " << position << endl;
}
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Amadeus
RE: Help With Find Of String Library
16 May, 2007 - 05:24 AM
Post #3

g++ -o drink whiskey.cpp
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string.h and string are two different libraries...in c++, the string.h library functions can be found in cstring. there is no find() function in string.h...it is the .find() method from the string object.
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