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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(134.4, 96%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENA%3C/text%3E%3C/svg%3E)
Hello,
I have an old project and need to develop a new one, and I need to take over code sequences.
Now I get errors with to_string and format.
include xstring.h not helped?
Project is a MFC C++, version 2010
How do I go about getting the definition? What do I have to include?
Is there a good rule?
Also, you may need to prefix to_string with the std namespace.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(246.4, 86%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDL%3C/text%3E%3C/svg%3E)
If you're using VS 2010, you probably won't have access to newer C++ libraries like to_string.
In the example shown can you perhaps use a %d format instead of %s?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(201.6, 57.00000000000001%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMY%3C/text%3E%3C/svg%3E)
Is there any update? What is Notification.m_NodeId.m_nodeIdentifierType.
The problem is with CString and ATL string. I need only CString. What can I do? Settings?
Several forms of to_string require #include <string>.
If this function is not available, use the CString. For example, if m_nodeIdentifierType is an integer, then: sHelp.Format("NodeIdentifierType %i ... ", Notification.m_NodeId.m_nodeIdentifierType, ....
The formats are described in documentation.
OK, I can check it Tuesday again. Thanks.
Hello,
CString sHelp;
CString sOPCValue;
sOValue = "XXXXX";
sHelp.Format(_T("%s"), (LPCTSTR)sOValue);
sHelp.Format("%s", sOValue);
sHelp.Format(_T("Type %s, NodeId= %s, NameSpace %d"), std::to_string(odeIdentifierType).c_str(),
otification.mNodeId.UI.c_str(),
otification.mNodeId.NodeNamespace);
That was it.
std::to_string Is there a way to write it without std::to_string?
sprintf works not sprintf_s works
Sometimes I get AT string however. What is the best configration?
In both MFC and ATL CString will resolve to either CStringA or CStringW based on the project's selected character set. So using CString::Format is similar to using the generic text functions like _tprintf which resolves to either printf or wprintf. Consequently, you should be able to provide a format string to CString::Format exactly as if you were using the generic _tprinf function. The guidance at Format specification syntax: printf and wprintf functions is applicable.