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Home > The C and C++ Libraries > Tailoring error signaling, error handling, and program exit > __rt_fp_status_addr()

2.9.8. __rt_fp_status_addr()

This function returns the address of the floating-point status register.

Syntax

unsigned* _rt_fp_status_addr(void);

Usage

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.

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