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History

He Yin Ling 6e05a79536 test: update example and unit tests with new import roles: tiny_test_fw is a python package now. import it using normal way.		2019-12-11 15:57:49 +11:00
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main	examples: use new component registration api	2019-06-21 19:53:29 +08:00
CMakeLists.txt	asio: examples renamed to have consistent binary names when build in make and CMake	2018-10-17 15:00:26 +02:00
example_test.py	test: update example and unit tests with new import roles:	2019-12-11 15:57:49 +11:00
Makefile	examples: add C++ exception handling example	2018-09-04 21:00:14 +08:00
README.md	build system: Use CMake-based build system as default when describing commands	2019-07-08 17:31:27 +10:00
sdkconfig.defaults	Rename Kconfig options (root)	2019-05-21 09:09:01 +02:00

README.md

Example: C++ exception handling

(See the README.md file in the upper level 'examples' directory for more information about examples.)

This example demonstrates usage of C++ exceptions in ESP-IDF.

By default, C++ exceptions support is disabled in ESP-IDF. It can be enabled using CONFIG_COMPILER_CXX_EXCEPTIONS configuration option.

In this example, sdkconfig.defaults file sets CONFIG_COMPILER_CXX_EXCEPTIONS option. This enables both compile time support (-fexceptions compiler flag) and run-time support for C++ exception handling.

Example source code declares a class which can throw exception from the constructor, depending on the argument. It illustrates that exceptions can be thrown and caught using standard C++ facilities.

How to use example

Build and Flash

idf.py -p PORT flash monitor

(Replace PORT with the name of the serial port.)

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.

Example Output

app_main starting
In constructor, arg=42
In constructor, arg=0
In destructor, m_arg=42
Exception caught: Exception in constructor
app_main done