added the file/directory existence functions from Cppcheck

Author: firewave

simplecpp.cpp

@@ -31,6 +31,7 @@
 #include <stack>
 #include <stdexcept>
 #include <string>
+#include <sys/stat.h>
 #if __cplusplus >= 201103L
 #ifdef SIMPLECPP_WINDOWS
 #include <mutex>
@@ -42,8 +43,10 @@
 
 #ifdef _WIN32
 #include <direct.h>
+using mode_t = unsigned short;
 #else
 #include <unistd.h>
+#include <sys/types.h>
 #endif
 
 #ifdef SIMPLECPP_WINDOWS
@@ -153,7 +156,7 @@ static unsigned long long stringToULL(const std::string &s)
     return ret;
 }
 
-// TODO: added an undercore since this conflicts with a function of the same name in utils.h from Cppcheck source when building Cppcheck with MSBuild 
+// TODO: added an undercore since this conflicts with a function of the same name in utils.h from Cppcheck source when building Cppcheck with MSBuild
 static bool startsWith_(const std::string &s, const std::string &p)
 {
     return (s.size() >= p.size()) && std::equal(p.begin(), p.end(), s.begin());
@@ -4103,6 +4106,24 @@ 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;
+}
+
 #if (__cplusplus < 201103L) && !defined(__APPLE__)
 #undef nullptr
 #endif

simplecpp.h

@@ -389,6 +389,20 @@ namespace simplecpp {
     /** Returns the __cplusplus value for a given standard */
     SIMPLECPP_LIB std::string getCppStdString(const std::string &std);
     SIMPLECPP_LIB std::string getCppStdString(cppstd_t std);
+
+    /**
+     * @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);
 }
 
 #if defined(_MSC_VER)