? in cpp

Initialize an array in c++

int nums[100] = {0}; // initiallize all values to 0

int nums[5] = {1,2,3,4,5};

// type name[size] = {values};

Source: dummies.com

? in cpp

e = ((a < d) ? (a++) : (a = d))
  //advance if else condition

Source: en.cppreference.com

# in c++

You can use '#' sign to get exact name of an argument passed to a macro:
#define what_is(x) cerr << #x << " is " << x << endl;
int variable = 376;
what_is(variable);
// prints "variable is 376"

Similar codes

19 votes159 views1 answer
C++ writing to file
C++
0 vote136 views1 answer
At c++ vector
C++
0 vote142 views1 answer
Macro c++
C++
0 vote141 views1 answer
Output to console in color c++
C++
0 vote146 views1 answer
C++ allocate and free dynamic 2d array
C++
213 votes325 views2 answers
C++ switch
C++
3 votes96 views2 answers
C++ read text file
C++
0 vote206 views1 answer
Columntransformer onehotencoder
C++
0 vote142 views1 answer
Unpack tuple c++
C++
0 vote164 views1 answer
Unreal engine overlap events c++ code
C++