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Sep 29th, 2003

Return Length of a string?

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Here's my code. I just want to return the length of a string. How do I do that? Any assistance would be greatly appreciated.

C++ Syntax (Toggle Plain Text)
#include "stdafx.h"
 
#using <mscorlib.dll>
 
using namespace System;
 
int _tmain()
{
 
	String *strString;
	int intLength;
 
	Console::Write(S"Enter a String ");
	strString = Console::ReadLine();
	Console::Write(strString);
	intLength = strlen(strString);
	Console::Write(intLength);
 
	return 0;
}
#include "stdafx.h"

#using <mscorlib.dll>

using namespace System;

int _tmain()
{

	String *strString;
	int intLength;

	Console::Write(S"Enter a String ");
	strString = Console::ReadLine();
	Console::Write(strString);
	intLength = strlen(strString);
	Console::Write(intLength);

	return 0;
}

I run this and get a slew of "Cannot convert..." errors.

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Daywalker46410

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Sep 30th, 2003

Re: Return Length of a string?

Can't you include string.h ? Use stdlib.h sizeof() and then search for '\0' (string end symb). You can make it even simplier by memsetting your string to some char (for example '\n') and then testing for that..
Ilya
P.S.: (You can later convert all the free mem to '\0' so that your print keeps clean)
P.P.S.: If all else fails instead of char symb. use hexidecimals (the true form of special chars)

Quote originally posted by Daywalker46410 ...

Here's my code. I just want to return the length of a string. How do I do that? Any assistance would be greatly appreciated.

#include "stdafx.h"

#using <mscorlib.dll>

using namespace System;

int _tmain()
{

String *strString;
int intLength;

Console::Write(S"Enter a String ");
strString = Console::ReadLine();
Console::Write(strString);
intLength = strlen(strString);
Console::Write(intLength);

return 0;
}

I run this and get a slew of "Cannot convert..." errors.

Valmian

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since Sep 2003

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Sep 30th, 2003

Re: Return Length of a string?

Although I must say your problem is strange...

Valmian

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Sep 30th, 2003

Re: Return Length of a string?

When I use sizeof(strString) I get an error that says "Cannot apply sizeof to managed type 'System:

tring'."

Daywalker46410

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Sep 30th, 2003

Re: Return Length of a string?

ok..
here is something i didn't test:

C++ Syntax (Toggle Plain Text)
int strings(char *string)
{
int size=0;
for (;string[size]!='\0'; size++)
continue;
return size;
}
int strings(char *string)
{
int size=0;
for (;string[size]!='\0'; size++)
continue;
return size;
}

Valmian

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Sep 30th, 2003

Re: Return Length of a string?

ok.. I tested it and to my suprise (my stuf ususally doesn't work from the first try) it actually worked.. so I hope you won't have problems with it.
Ilyaa

Valmian

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Sep 30th, 2003

Re: Return Length of a string?

*ilya

Valmian

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Sep 30th, 2003

Re: Return Length of a string?

Your problem might be that strlen returns size_t or smthn so and you are using int.. although I always thought that size_t was made by "typedef size_t int;"
Ilya

Quote originally posted by Daywalker46410 ...

Here's my code. I just want to return the length of a string. How do I do that? Any assistance would be greatly appreciated.

#include "stdafx.h"

#using <mscorlib.dll>

using namespace System;

int _tmain()
{

String *strString;
int intLength;

Console::Write(S"Enter a String ");
strString = Console::ReadLine();
Console::Write(strString);
intLength = strlen(strString);
Console::Write(intLength);

return 0;
}

I run this and get a slew of "Cannot convert..." errors.

Valmian

Reputation Points: 13

Solved Threads: 0

Junior Poster in Training

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82 posts
since Sep 2003

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Oct 4th, 2003

Re: Return Length of a string?

Doesn't look like C++ to me, is it C#?

Bob

Team Colleague

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Oct 7th, 2003

Re: Return Length of a string?

How bout' something like this:

C++ Syntax (Toggle Plain Text)
int length(char *string) {
 int blah = 0;
 char *pointer = string;
 while (*pointer++!=NULL) blah++;
 return blah;
}
int length(char *string) {
 int blah = 0;
 char *pointer = string;
 while (*pointer++!=NULL) blah++;
 return blah;
}

Theoretically, that should give you the length of a string. Might not work since I thought it up right now.

Quote ...

When I use sizeof(strString) I get an error that says "Cannot apply sizeof to managed type 'System:tring'."

I didn't know there was a system class. I r teh n00b.

Apparently, that class doesn't like you using 'sizeof()' on it, so you're just going to have to manually find it's size.

Quote ...

#using <mscorlib.dll>

You are using C/C++, right? If so, I didn't know you could do that.

Mike29936

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since Sep 2003

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