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What is the meaning of prepended double colon - Stack Overflow I found this line of a code in a class which I have to modify: ::Configuration * tmpCo = m_configurationDB; pointer to current db and I don't know what exactly means the double colon prepended to
Incrementing in C++ - When to use x++ or ++x? - Stack Overflow This may seem like pedantry (mainly because it is :) ) but in C++, x++ is a rvalue with the value of x before increment, x++ is an lvalue with the value of x after an increment Neither expression guarantees when the actual incremented value is stored back to x, it is only guaranteed that it happens before the next sequence point 'after processing the current statement' is not strictly
What is the lt;= gt; (spaceship, three-way comparison) operator in C++? This is called the three-way comparison operator According to the P0515 paper proposal: There’s a new three-way comparison operator, <=> The expression a <=> b returns an object that compares <0 if a < b, compares >0 if a > b, and compares ==0 if a and b are equal equivalent To write all comparisons for your type, just write operator<=> that returns the appropriate category type: Return
C++ code file extension? What is the difference between . cc and . cpp 95 cpp is the recommended extension for C++ as far as I know Some people even recommend using hpp for C++ headers, just to differentiate from C Although the compiler doesn't care what you do, it's personal preference
Storing C++ template function definitions in a . CPP file I have some template code that I would prefer to have stored in a CPP file instead of inline in the header I know this can be done as long as you know which template types will be used For exam
. c vs . cc vs. . cpp vs . hpp vs . h vs . cxx - Stack Overflow Possible Duplicates: * h or * hpp for your class definitions What is the difference between cc and cpp file suffix? I used to think that it used to be that: h files are header files for C and C