Usage
Calls to the function pass floating-point arguments in integer registers. If the result is
a floating-point value, the value is returned in integer registers. This duplicates the
behavior of compilation targeting software floating-point.
This keyword enables the same library to be used by sources compiled to use hardware and
software floating-point.
Note
In C++, if a virtual function qualified with the __softfp keyword is to
be overridden, the overriding function must also be declared as __softfp.
If the functions do not match, the compiler generates an error.
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