added the file/directory existence functions from Cppcheck

Author: firewave

simplecpp.cpp

@@ -42,8 +42,10 @@
 
 #ifdef _WIN32
 #  include <direct.h>
+using mode_t = unsigned short;
 #else
 #  include <sys/stat.h>
+#  include <sys/types.h>
 #endif
 
 static bool isHex(const std::string &s)
@@ -3838,3 +3840,21 @@ std::string simplecpp::getCppStdString(const std::string &std)
 {
     return getCppStdString(getCppStd(std));
 }
+
+static mode_t file_type(const std::string &path)
+{
+    struct stat file_stat;
+    if (stat(path.c_str(), &file_stat) == -1)
+        return 0;
+    return file_stat.st_mode & S_IFMT;
+}
+
+bool simplecpp::isFile(const std::string &path)
+{
+    return file_type(path) == S_IFREG;
+}
+
+bool simplecpp::isDirectory(const std::string &path)
+{
+    return file_type(path) == S_IFDIR;
+}

simplecpp.h

@@ -353,6 +353,20 @@ namespace simplecpp {
         bool removeComments; /** remove comment tokens from included files */
     };
 
+    /**
+     * @brief Checks if given path is a file
+     * @param path Path to be checked
+     * @return true if given path is a file
+     */
+    SIMPLECPP_LIB bool isFile(const std::string &path);
+
+    /**
+     * @brief Checks if a given path is a directory
+     * @param path Path to be checked
+     * @return true if given path is a directory
+     */
+    SIMPLECPP_LIB bool isDirectory(const std::string &path);
+
     struct SIMPLECPP_LIB FileData {
         /** The canonical filename associated with this data */
         std::string filename;