managing char arrays

[toxcct]

yes he can. CString class provides a LPTSTR cast operator... so using strcpy() is possible as it uses this way 2 char arrays...

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[toxcct][VisualCalc]

[elephantstar]

Yes, I do have an array of characters. I need to convert the ASCII value which is currently a string value to an ASCII character. Then store that ASCII character into the 18th element of the array. How do I go about doing that?

[David Crow]

elephantstar wrote: array = "Supernatural"; What is this, other than a syntax error? If you want array to contain the string literal, use either of:

char array[20] = "Supernatural";
...
char array[20];
strcpy(array, "Supernatural");

elephantstar wrote: strcpy(array[18],str); The error message tells you exactly what the problem is. array[18] is a char, but the first parameter of strcpy() is supposed to be a char*. Why are you using char in such a fashion? If this is an MFC application, use CString. Mixing the two types is seldom necessary.

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"One must learn from the bite of the fire to leave it alone." - Native American Proverb

[David Crow]

Are you talking about this:

CString str = "40";
array[18] = atoi(str);

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"One must learn from the bite of the fire to leave it alone." - Native American Proverb

[S Senthil Kumar]

No he can't :). It's not possible to store a string as an element in an array of characters. From what I understood, the OP wants to do this

char arr[20] = "Senthil";
arr[5] = "Kumar";

which isn't logically possible. Regards Senthil _____________________________ My Blog | My Articles | WinMacro

[elephantstar]

I want to store the value of CString str into the array. vtValue.ChangeType(VT_BSTR); str = (LPCSTR)((_bstr_t)vtValue.bstrVal); Then I want to store the exact same data type into array[18]. Yes, it is an MFC application. I'm using char so that I can manipulate the data in each element easily.

[David Crow]

elephantstar wrote: vtValue.ChangeType(VT_BSTR); str = (LPCSTR)((_bstr_t)vtValue.bstrVal); What's with all of the BSTR and VARIANT stuff? Is this part of the original problem? elephantstar wrote: I'm using char so that I can manipulate the data in each element easily. CString objects can be manipulated just as easily.

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"One must learn from the bite of the fire to leave it alone." - Native American Proverb

[elephantstar]

Sorry, I should have included the rest of the code. I'm using ADO to query some values. CString str, str2; _variant_t vtValue; vtValue = t_Rec->Fields->GetItem("NAME")->GetValue(); vtValue.ChangeType(VT_BSTR); str = (LPCSTR)((_bstr_t)vtValue.bstrVal); Instead of using char array[20], you're suggesting I just work with CString then. But if I do use CString, the following code fails. What am I doing wrong? Thanks.

vtValue = t_Rec->Fields->GetItem("NUMBER")->GetValue();
vtValue.ChangeType(VT_BSTR);
str2 = (LPTSTR)((_bstr_t)vtValue.bstrVal);
char x;
x = atoi(str2);
str.GetAt(18, str2); ///Debug Assertion Failed

[David Crow]

elephantstar wrote: str.GetAt(18, str2); ///Debug Assertion Failed This must be .Net as the CString::GetAt() method that comes with VC++ v6 only takes one parameter. In any case, what line of what file is firing the assertion?

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"One must learn from the bite of the fire to leave it alone." - Native American Proverb

[elephantstar]

Nevermind. I went back to using char and it works just fine. Thanks Dave! Your help is always appreciated.

[toxcct]

oh yes, i did this it like this. i saw (arr + 5) = "Kumar"; which would mean writing from the 5th position in the array. but ok, you're right, i appology.

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[toxcct][VisualCalc]