fs.c: removed unused function (+ use C)

src/utils/fs.c

@@ -42,9 +42,10 @@
 #include "config_win32.h"
 #endif
 
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <cstring>
+#include <string.h>
 
 #include "utils/fs.h"
 #include "utils/string.h"
@@ -65,7 +66,8 @@ const char *get_temp_dir(void)
                 return NULL;
         }
 #else
-        if (char *req_tmp_dir = getenv("TMPDIR")) {
+        const char *req_tmp_dir = getenv("TMPDIR");
+        if (req_tmp_dir) {
                 temp_dir[sizeof temp_dir - 1] = '\0';
                 strncpy(temp_dir, req_tmp_dir, sizeof temp_dir - 1);
         } else {
@@ -141,7 +143,7 @@ const char *get_install_root(void) {
  * both FILE pointer and file name.
  */
 FILE *get_temp_file(const char **filename) {
-        static thread_local char filename_buf[MAX_PATH_SIZE];
+        static _Thread_local char filename_buf[MAX_PATH_SIZE];
 #ifdef _WIN32
         *filename = tmpnam(filename_buf);
         return fopen(*filename, "wbx");

src/utils/fs.h

@@ -65,18 +65,5 @@ const char *get_install_root(void);
 } // extern "C"
 #endif
 
-#ifdef __cplusplus
-#include <string>
-
-inline std::string get_executable_path(){
-        std::string path(MAX_PATH_SIZE, '\0');
-        if (!get_exec_path(path.data())){
-            return "";
-        }
-        path.erase(path.find('\0'));
-        return path;
-}
-#endif
-
 #endif// UTILS_FS_H_
 

src/utils/string.h

@@ -40,6 +40,8 @@
 
 #ifdef __cplusplus
 extern "C" {
+#else
+#include <stdbool.h>
 #endif
 
 // functions documented at definition