add cmake

Author: AceCoooool

ch1/10_Date/CMakeLists.txt

@@ -0,0 +1,7 @@
+cmake_minimum_required(VERSION 3.8)
+project(10_Date)
+
+set(CMAKE_CXX_STANDARD 14)
+
+set(SOURCE_FILES main.cpp)
+add_executable(10_Date ${SOURCE_FILES})

ch1/10_Date/main.cpp

@@ -0,0 +1,152 @@
+#include <iostream>
+#include <vector>
+#include <sstream>
+#include <algorithm>
+
+using namespace std;
+
+auto split = [](string s, char delim) {
+    vector<string> tokens;
+    stringstream ss(s);
+    string tmp;
+    while (getline(ss, tmp, delim))
+        tokens.push_back(tmp);
+    return tokens;
+};
+
+class Date {
+public:
+    /**
+     * Initializes a new date from the month, day, and year.
+     * @param month the month (between 1 and 12)
+     * @param day the day (between 1 and 28-31, depending on the month)
+     * @param year the year
+     * @throws IllegalArgumentException if this date is invalid
+     */
+    Date(int m, int d, int y) : month_(m), day_(d), year_(y) {
+        if (!isValid(month_, day_, year_))
+            throw runtime_error("Invalid date");
+    }
+
+    /**
+     * Initializes new date specified as a string in form MM/DD/YYYY.
+     * @param date the string representation of this date
+     * @throws IllegalArgumentException if this date is invalid
+     */
+    Date(string date) {
+        vector<string> fields = split(date, '/');
+        if (fields.size() != 3)
+            throw runtime_error("Invalid data");
+        month_ = stoi(fields[0]);
+        day_ = stoi(fields[1]);
+        year_ = stoi(fields[2]);
+        if (!isValid(month_, day_, year_))
+            throw runtime_error("Invalid data");
+    }
+
+    /**
+     * Return the month.
+     * @return the month (an integer between 1 and 12)
+     */
+    int month() {
+        return month_;
+    }
+
+    /**
+     * Returns the day.
+     * @return the day (an integer between 1 and 31)
+     */
+    int day() {
+        return day_;
+    }
+
+    /**
+     * Returns the year.
+     * @return the year
+     */
+    int year() {
+        return year_;
+    }
+
+    /**
+     * Returns the next date in the calendar.
+     *
+     * @return a date that represents the next day after this day
+     */
+    Date next() {
+        if (isValid(month_, day_ + 1, year_)) return Date(month_, day_ + 1, year_);
+        else if (isValid(month_ + 1, 1, year_)) return Date(month_ + 1, 1, year_);
+        else return Date(1, 1, year_ + 1);
+    }
+
+    /**
+     * Compares two dates chronologically.
+     *
+     * @param  that the other date
+     * @return {@code true} if this date is after that date; {@code false} otherwise
+     */
+    bool isAfter(Date &that) {
+        return compareTo(that) > 0;
+    }
+
+    /**
+     * Compares two dates chronologically.
+     *
+     * @param  that the other date
+     * @return {@code true} if this date is before that date; {@code false} otherwise
+     */
+    bool isBefore(Date that) {
+        return compareTo(that) < 0;
+    }
+
+
+
+private:
+    // is the given date valid?
+    static bool isValid(int m, int d, int y) {
+        if (m < 1 || m > 12) return false;
+        if (d < 1 || d > DAYS[m]) return false;
+        if (m == 2 && d == 29 && !isLeapYear(y)) return false;
+        return true;
+    }
+
+    // is y a leap year?
+    static bool isLeapYear(int y) {
+        if (y % 400 == 0) return true;
+        if (y % 100 == 0) return false;
+        return y % 4 == 0;
+    }
+
+    /**
+    * Compares two dates chronologically.
+    *
+    * @return the value {@code 0} if the argument date is equal to this date;
+    *         a negative integer if this date is chronologically less than
+    *         the argument date; and a positive ineger if this date is chronologically
+    *         after the argument date
+    */
+    int compareTo(Date &that) {
+        if (year_ < that.year_) return -1;
+        if (year_ > that.year_) return +1;
+        if (month_ < that.month_) return -1;
+        if (month_ > that.month_) return +1;
+        if (day_ < that.day_) return -1;
+        if (day_ > that.day_) return +1;
+        return 0;
+    }
+
+private:
+    const static vector<int> DAYS;
+    int month_;   // month (between 1 and 12)
+    int day_;     // day   (between 1 and DAYS[month]
+    int year_;    // year
+};
+
+const vector<int> Date::DAYS = {0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
+
+int main() {
+    auto v = split("10/20/30", '/');
+    for (auto a: v)
+        cout << a << " ";
+    cout << endl;
+}

ch1/CMakeLists.txt

@@ -0,0 +1,15 @@
+cmake_minimum_required(VERSION 3.8)
+project(ch1)
+
+set(CMAKE_CXX_STANDARD 14)
+
+add_subdirectory(1_BinarySearch)
+add_subdirectory(2_RandomSeq)
+add_subdirectory(3_Average)
+add_subdirectory(4_Cat)
+add_subdirectory(5_Knuth)
+add_subdirectory(6_Counter)
+add_subdirectory(7_StaticSETofInts)
+add_subdirectory(8_Whitelist)
+add_subdirectory(9_vector)
+add_subdirectory(10_Date)