set of windows (mingw64) build fixes

libs/libvtrutil/src/vtr_util.cpp

@@ -375,67 +375,6 @@ char* fgets(char* buf, int max_size, FILE* fp) {
     return nullptr;
 }
 
-/**
- * @brief to get an arbitrary long input line and cut off any
- * comment part 
- * 
- * the getline function is exaly like the __get_delim function 
- * in GNU with '\n' delimiter. As a result, to make the function 
- * behaviour identical for Windows (\r\n) and Linux (\n) compiler 
- * macros for checking operating systems have been used.
- * 
- * @note user need to take care of the given pointer,
- * which will be dynamically allocated by getdelim
- */
-char* getline(char*& _lineptr, FILE* _stream) {
-    int i;
-    int ch;
-    size_t _n = 0;
-    ssize_t nread;
-
-#if defined(__unix__)
-    nread = getdelim(&_lineptr, &_n, '\n', _stream);
-#elif defined(_WIN32)
-#define __WIN_NLTK "\r\n"
-    nread = getdelim(&_lineptr, &_n, __WIN_NLTK, _stream);
-#endif
-
-    if (nread == -1) {
-        int errsv = errno;
-        std::string error_msg;
-
-        if (errsv == EINVAL)
-            error_msg = string_fmt("[%s] Bad arguments (_lineptr is NULL, or _stream is not valid).", strerror(errsv));
-        else if (errsv == ENOMEM)
-            error_msg = string_fmt("[%s] Allocation or reallocation of the line buffer failed.", strerror(errsv));
-        else
-            /* end of file so it will return null */
-            return nullptr;
-
-        /* getline was unsuccessful, so error */
-        throw VtrError(string_fmt("Error -- %s\n",
-                                  error_msg.c_str()),
-                       __FILE__, __LINE__);
-        return nullptr;
-    }
-
-    cont = 0;           /* line continued? */
-    file_line_number++; /* global variable */
-
-    for (i = 0; i < nread; i++) { /* Keep going until the line finishes */
-
-        ch = _lineptr[i];
-
-        if (ch == '#') { /* comment */
-            _lineptr[i] = '\0';
-            /* skip the rest of the line */
-            break;
-        }
-    }
-
-    return (_lineptr);
-}
-
 ///@brief Returns line number of last opened and read file
 int get_file_line_number_of_last_opened_file() {
     return file_line_number;

vpr/src/draw/draw_basic.cpp

@@ -4,6 +4,7 @@
 #ifndef NO_GRAPHICS
 
 #include <cstdio>
+#include <numbers>
 #include <cmath>
 #include <algorithm>
 #include <sstream>
@@ -1236,7 +1237,7 @@ void draw_flyline_timing_edge(ezgl::point2d start, ezgl::point2d end, float incr
         std::string incr_delay_str = ss.str();
 
         // Get the angle of line, to rotate the text
-        float text_angle = (180 / M_PI)
+        float text_angle = (180 / std::numbers::pi)
                            * atan((end.y - start.y) / (end.x - start.x));
 
         // Get the screen coordinates for text drawing
@@ -1251,9 +1252,9 @@ void draw_flyline_timing_edge(ezgl::point2d start, ezgl::point2d end, float incr
 
         // Find an offset so it is sitting on top/below of the line
         float x_offset = screen_coords.center().x
-                         - 8 * sin(text_angle * (M_PI / 180));
+                         - 8 * sin(text_angle * (std::numbers::pi / 180));
         float y_offset = screen_coords.center().y
-                         - 8 * cos(text_angle * (M_PI / 180));
+                         - 8 * cos(text_angle * (std::numbers::pi / 180));
 
         ezgl::point2d offset_text_bbox(x_offset, y_offset);
         g->draw_text(offset_text_bbox, incr_delay_str.c_str(),