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| Home > The C and C++ Libraries > Tailoring error signaling, error handling, and program exit > __rt_fp_status_addr() | |||
This function returns the address of the floating-point status register.
If __rt_fp_status_addr() is not defined,
the default implementation from the C library is used. The value
is initialized when __rt_lib_init() calls _fp_init().
The constants for the status word are listed in fenv.h.
The default fp status is 0.
Also see Thread-safety in the ARM C libraries.