How to convert string to *char for strcm...

How to convert string to *char for strcmp

icemanfan (18)

Here is my code:

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bool SpellList::searchList (string target)
	{
	bool found;
	
	pPre = NULL;
	pCur = pHead;
	
	while (pCur && strcmp(target, pCur->name) < 0)
		{
		pPre = pCur;
		pCur = pCur->link;
		}
	
	if(pCur && strcmp(target, pCur->name) == 0)
		found = true;
	else
		found = false;
	return found;
	}

It's a simple function and so far the only one giving me trouble, because strcmp needs a *char and not an actual string object. So how can I fix the code so that the first string argument in each of the strcmps doesn't give me a compile error?

Duoas (1456)


strcmp(target.c_str(), pCur->name);

You can also store strings in your structures:


strcmp(target.c_str(), pCur->name.c_str());

Hope this helps.

bnbertha (404)

You could also use the compare() method from std::string instead of strcmp()


if (pCur && target.compare(pCur->name) == 0)

See http://www.cplusplus.com/reference/string/string/compare.html

icemanfan (18)

Duoas: Your method worked for me when I was playing around with the filestream.open() command, but here it didn't work; however, bnbertha's method does work. I wonder why that is. I know my compiler is picky about a few things, such as main having to be an int and returning a value, but I haven't figured them all out yet.

Duoas (1456)

If your compiler can't convert a std::string to a const char* using the standard methods ( c_str() or data() ), then it is time to update your compiler to the modern age and get a standard version of the STL.

Alas. :-\

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