Add basic error handling

Author: tygyh

profiler/src/ini.c

@@ -193,7 +193,8 @@ ini_t* ini_load(const char *filename) {
 
   /* Get file size */
   fseek(fp, 0, SEEK_END);
-  sz = ftell(fp);
+  const long file_size = ftell(fp);
+  sz = file_size > 0 ? file_size : 0;
   rewind(fp);
 
   /* Load file content into memory, null terminate, init end var */

server/TracyPrint.hpp

@@ -85,7 +85,8 @@ static inline char* PrintFloat( char* begin, char* end, T value, int precision )
 #ifndef NO_CHARCONV
     return std::to_chars( begin, end, value, std::chars_format::fixed, precision ).ptr;
 #else
-    return begin + sprintf( begin, "%.*f", precision, value );
+    auto end_index = sprintf( begin, "%.*f", precision, value );
+    return end_index < begin ? "" : begin + end_index; // TODO: Proper error handling for end index less than beginning
 #endif
 }
 
@@ -95,7 +96,8 @@ static inline char* PrintFloat( char* begin, char* end, T value )
 #ifndef NO_CHARCONV
     return std::to_chars( begin, end, value, std::chars_format::fixed ).ptr;
 #else
-    return begin + sprintf( begin, "%f", value );
+    auto end_index = sprintf( begin, "%f", value );
+    return end_index < begin ? "" : begin + end_index; // TODO: Proper error handling for end index less than beginning
 #endif
 }