C++ Standard Environment¶
lbuild module: modm:stdc++
Refines the C++ language to make it easier to use on embedded targets. Depending on the module options, the compiler options are appended with either:
-fno-exceptions: no C++ exceptions.-fno-rtti: no C++ run-time type information.
or:
-fexceptions: with C++ exceptions.-frtti: with C++ run-time type information.
AVR¶
A partial port of GCC 8 libstdc++ is provided: See https://github.com/modm-io/avr-libstdcpp.
Options¶
assert_on_exception¶
Assert on exception in stdlib. Set to False to save flash.
This option is only available for avr.
Default: True
Inputs: [True, False]
exceptions¶
C++ Exceptions
Enables the full use of C++ exception handling.
Check your code size
The inclusion of the stack unwind tables will increase your code size quite a bit. Check whether your target has enough memory for this!
This option is only available for sam, stm32.
Default: False
Inputs: [True, False]
rtti¶
C++ Runtime Type Information
Enables the full use of C++ runtime type information.
Check your code size
The inclusion of the RTTI information will increase your code size quite a bit. Check whether your target has enough memory for this!
This option is only available for sam, stm32.
Default: False
Inputs: [True, False]
safe_statics¶
C++ Safe Statics Initialization
Enables safe initialization of statics inside functions and interrupts.
In case of recursive initialization the debug assertion cxa.guard.recursion
is raised.
Further reading on this topic: - C++ ABI for the ARM Architecture - https://manishearth.github.io/blog/2015/06/26/adventures-in-systems-programming-c-plus-plus-local-statics/ - https://iamroman.org/blog/2017/04/cpp11-static-init/
This option is only available for sam, stm32.
Default: True
Inputs: [True, False]