rt_misc.h, this function raises
a signal to indicate a runtime anomaly. It is not part of the C
library standard, but is supported by the ARM C library as an extension.
is an integer that holds the signal number.
is an integer, string constant or variable that provides additional information about the circumstances that the signal was raised in, for some kinds of signal.
This function calls the normal C signal mechanism or the default signal handler.
You can replace the
This enables you to bypass the C signal mechanism and its data-consuming signal handler vector, but otherwise gives essentially the same interface as:
The default signal handler of the library uses the
__raise() to vary the messages it outputs.
There are three possibilities for a
- no return
The handler performs a long jump or restart.
The signal was handled.
The calling code must pass that return value to the exit code. The default library implementation calls
__raise()returns a nonzero return code
Using the ARM C and C++ Libraries and Floating-Point Support:
Using ARM C and C++ Libraries and Floating-Point Support: