? 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

0 vote260 views1 answer
Converting a string to lowercase inbuld function in cpp
C++
2 votes235 views2 answers
C++ back()
C++
6 votes217 views4 answers
String to upper c++
C++
1 vote221 views2 answers
Scope resolution operator in c++
C++
1 vote239 views2 answers
Substring function in c++
C++
0 vote246 views1 answer
1162261467
C++
3 votes224 views2 answers
Print type c++
C++
0 vote228 views1 answer
Varint index
C++
0 vote207 views1 answer
What is meant by pragma once in c++
C++
0 vote273 views1 answer
C++ chrono get milliseconds
C++