Force using C++11, since that is required for this project

lib/utils/include/utils.h

@@ -13,6 +13,7 @@
 #ifndef SRC_UTILS_H_
 #define SRC_UTILS_H_
 
+#include <cstddef>
 #include <string>
 
 namespace utils {

platformio.ini

@@ -10,7 +10,7 @@
 
 [platformio]
 name = "ESP WiFi Thermometer"
-default_envs = 
+default_envs =
 	esp32dev
 	esp32dev_debug
 	esp32dev_ota
@@ -29,27 +29,30 @@ framework = arduino
 monitor_speed = 115200
 upload_speed = 921600
 extra_scripts = post:shared/compress_web.py
-lib_deps = 
+lib_deps =
 	ArduinoOTA
 	ESPAsyncWebServer = https://github.com/me-no-dev/ESPAsyncWebServer.git
 	marvinroger/AsyncMqttClient@^0.9.0
 	adafruit/DHT sensor library@^1.4.4
 	milesburton/DallasTemperature@^3.11.0
-board_build.embed_txtfiles = 
+board_build.embed_txtfiles =
 	wifissid.txt
 	wifipass.txt
 	otapass.txt
 	mqttuser.txt
 	mqttpass.txt
 	data/index.html
 	data/error.html
-board_build.embed_files = 
+board_build.embed_files =
 	data/gzip/main.css.gz
 	data/gzip/index.js.gz
 	data/gzip/manifest.json.gz
 	data/gzip/favicon.ico.gz
 	data/gzip/favicon.png.gz
 	data/gzip/favicon.svg.gz
+build_flags =
+	-std=c++11
+	-Wall
 test_framework = unity
 
 [debug]
@@ -58,7 +61,7 @@ build_flags = -D CORE_DEBUG_LEVEL=5
 
 [env:native]
 platform = native
-framework = 
+framework =
 lib_deps = UZLibGzipWrapper
 
 [env:native_debug]

test/test_uzlib_gzip_wrapper/decompress.cpp

@@ -92,12 +92,12 @@ void setUp() {
 	if (uncompressed_path) {
 		const size_t u_len = std::strlen(uncompressed_path);
 		compressed_path = new char[u_len + 4]; // 3 for .gz plus NUL byte.
-		strncpy(compressed_path, uncompressed_path, u_len);
+		strncpy(compressed_path, uncompressed_path, u_len + 1);
 		strncpy(compressed_path + u_len, ".gz", 4);
 
 		const size_t bc_len = std::strlen(BASE_COMMAND);
 		compress_command = new char[bc_len + u_len + 1];
-		strncpy(compress_command, BASE_COMMAND, bc_len);
+		strncpy(compress_command, BASE_COMMAND, bc_len + 1);
 		strncpy(compress_command + bc_len, uncompressed_path, u_len + 1);
 	}