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C and C++ Libraries and Floating-Point Support Reference
Conventions and feedback
The C and C++ libraries
__aeabi_errno_addr()
alloca()
clock()
_clock_init()
__default_signal_handler()
errno
_findlocale()
_fisatty()
_get_lconv()
getenv()
_getenv_init()
__heapstats()
__heapvalid()
lconv structure
localeconv()
_membitcpybl(), _membitcpybb(), _membitcpyhl(), _m
posix_memalign()
#pragma import(_main_redirection)
__raise()
_rand_r()
remove()
rename()
__rt_entry
__rt_errno_addr()
__rt_exit()
__rt_fp_status_addr()
__rt_heap_extend()
__rt_lib_init()
__rt_lib_shutdown()
__rt_raise()
__rt_stackheap_init()
setlocale()
_srand_r()
strcasecmp()
strncasecmp()
strlcat()
strlcpy()
_sys_close()
_sys_command_string()
_sys_ensure()
_sys_exit()
_sys_flen()
_sys_istty()
_sys_open()
_sys_read()
_sys_seek()
_sys_tmpnam()
_sys_write()
system()
time()
_ttywrch()
__user_heap_extend()
__user_heap_extent()
__user_setup_stackheap()
__vectab_stack_and_reset
wcscasecmp()
wcsncasecmp()
wcstombs()
Thread-safe C library functions
C library functions that are not thread-safe
Legacy function __user_initial_stackheap()
Floating-point support
C and C++ Libraries and Floating-Point Support Reference
__rt_fp_status_addr()
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| Home > The C and C++ libraries > __rt_fp_status_addr() | |||
Defined in rt_fp.h, this function returns
the address of the floating-point status word, which resides by
default in __user_libspace. It is not part of
the C library standard, but is supported by the ARM C library as
an extension.
SyntaxIf __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 floating-point status is 0.
- Concepts
Using ARM C and C++ Libraries and Floating-Point Support:
| Copyright © 2011-2012 ARM. All rights reserved. | ARM DUI 0589B |
| Non-Confidential | ID062912 |
 PDF version | |
| Home > The C and C++ libraries > __rt_fp_status_addr() |
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