112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
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#include <bits/stdc++.h>
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namespace __DEBUG_UTIL__
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{
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using namespace std;
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template <typename T>
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concept is_iterable = requires(T &&x) { begin(x); } &&
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!is_same_v<remove_cvref_t<T>, string>;
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void print(const char *x) { cerr << x; }
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void print(char x) { cerr << "\'" << x << "\'"; }
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void print(bool x) { cerr << (x ? "T" : "F"); }
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void print(string x) { cerr << "\"" << x << "\""; }
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void print(vector<bool> &v)
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{ /* Overloaded this because stl optimizes vector<bool> by using
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_Bit_reference instead of bool to conserve space. */
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int f = 0;
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cerr << '{';
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for (auto &&i : v)
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cerr << (f++ ? "," : "") << (i ? "T" : "F");
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cerr << "}";
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}
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template <typename T>
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void print(T &&x)
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{
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if constexpr (is_iterable<T>)
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if (size(x) && is_iterable<decltype(*(begin(x)))>)
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{ /* Iterable inside Iterable */
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int f = 0;
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cerr << "\n~~~~~\n";
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for (auto &&i : x)
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{
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cerr << setw(2) << left << f++, print(i), cerr << "\n";
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}
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cerr << "~~~~~\n";
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}
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else
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{ /* Normal Iterable */
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int f = 0;
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cerr << "{";
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for (auto &&i : x)
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cerr << (f++ ? "," : ""), print(i);
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cerr << "}";
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}
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else if constexpr (requires { x.pop(); }) /* Stacks, Priority Queues, Queues */
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{
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auto temp = x;
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int f = 0;
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cerr << "{";
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if constexpr (requires { x.top(); })
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while (!temp.empty())
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cerr << (f++ ? "," : ""), print(temp.top()), temp.pop();
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else
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while (!temp.empty())
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cerr << (f++ ? "," : ""), print(temp.front()), temp.pop();
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cerr << "}";
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}
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else if constexpr (requires { x.first; x.second; }) /* Pair */
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{
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cerr << '(', print(x.first), cerr << ',', print(x.second), cerr << ')';
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}
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else if constexpr (requires { get<0>(x); }) /* Tuple */
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{
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int f = 0;
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cerr << '(', apply([&f](auto... args)
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{ ((cerr << (f++ ? "," : ""), print(args)), ...); },
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x);
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cerr << ')';
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}
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else
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cerr << x;
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}
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template <typename T, typename... V>
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void printer(const char *names, T &&head, V &&...tail)
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{
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int i = 0;
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for (size_t bracket = 0; names[i] != '\0' and (names[i] != ',' or bracket != 0); i++)
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if (names[i] == '(' or names[i] == '<' or names[i] == '{')
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bracket++;
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else if (names[i] == ')' or names[i] == '>' or names[i] == '}')
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bracket--;
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cerr.write(names, i) << " = ";
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print(head);
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if constexpr (sizeof...(tail))
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cerr << " ||", printer(names + i + 1, tail...);
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else
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cerr << "]\n";
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}
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template <typename T, typename... V>
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void printerArr(const char *names, T arr[], size_t N, V... tail)
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{
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size_t i = 0;
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for (; names[i] and names[i] != ','; i++)
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cerr << names[i];
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for (i++; names[i] and names[i] != ','; i++)
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;
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cerr << " = {";
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for (size_t ind = 0; ind < N; ind++)
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cerr << (ind ? "," : ""), print(arr[ind]);
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cerr << "}";
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if constexpr (sizeof...(tail))
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cerr << " ||", printerArr(names + i + 1, tail...);
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else
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cerr << "]\n";
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}
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}
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#ifdef ONLINE_JUDGE
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#define dbg(...)
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#define dbgArr(...)
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#else
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#define dbg(...) std::cerr << __LINE__ << ": [", __DEBUG_UTIL__::printer(#__VA_ARGS__, __VA_ARGS__)
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#define dbgArr(...) std::cerr << __LINE__ << ": [", __DEBUG_UTIL__::printerArr(#__VA_ARGS__, __VA_ARGS__)
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#endif
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