How to concatenate multiple CString

Question

All functions return CString, this is a MFC code and must compile in 32 & 64 bits.

Currently I'm using

CString sURI = GetURL();
sURI += GetMethod();
sURI += "?";
sURI += GetParameters();

Exists any manner to do the same like:

CString sURI = GetURL() + GetMethod() + "?" + GetParameters();

Have you tried it? http://msdn.microsoft.com/en-us/library/72b2swax.aspx looks like it should work... — Cogwheel, Jul 01 '10 at 15:24

score 5 · Answer 1 · answered Mar 18 '11 at 17:23

5

Problem is that "?" of type "const char*" is, and its + operator does not take right hand operand of type CString. You have to convert "?" to CString like this:

CString sURI = GetURL() + GetMethod() + _T("?") + GetParameters();

answered Mar 18 '11 at 17:23

Bojan Hrnkas

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_T converts a character or string to its Unicode counterpart, I think you meant CString("?") – 8bitwide Sep 27 '12 at 22:37
3

That is not true. _T converts the string to a proper character type, which depends on the project options. If you choose Unicode in project options, it converts string to const wchar*, otherwise it gives a const char* back. – Bojan Hrnkas Oct 03 '12 at 07:29

score 3 · Answer 2 · answered Jul 01 '10 at 15:27

3

As long as all those functions return a CString object, then it should be fine to use the + operator for concatenation.

Otherwise use the CString _T(const char *) function to wrap your regular C strings and make them a CString.

answered Jul 01 '10 at 15:27

Luca Matteis

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How to concatenate multiple CString

2 Answers2

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