fenv_bind/binding/
binding.rs

1/* automatically generated by rust-bindgen 0.69.4 */
2
3#[repr(C)]
4#[derive(Copy, Clone, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
5pub struct __BindgenBitfieldUnit<Storage> {
6    storage: Storage,
7}
8impl<Storage> __BindgenBitfieldUnit<Storage> {
9    #[inline]
10    pub const fn new(storage: Storage) -> Self {
11        Self { storage }
12    }
13}
14impl<Storage> __BindgenBitfieldUnit<Storage>
15where
16    Storage: AsRef<[u8]> + AsMut<[u8]>,
17{
18    #[inline]
19    pub fn get_bit(&self, index: usize) -> bool {
20        debug_assert!(index / 8 < self.storage.as_ref().len());
21        let byte_index = index / 8;
22        let byte = self.storage.as_ref()[byte_index];
23        let bit_index = if cfg!(target_endian = "big") {
24            7 - (index % 8)
25        } else {
26            index % 8
27        };
28        let mask = 1 << bit_index;
29        byte & mask == mask
30    }
31    #[inline]
32    pub fn set_bit(&mut self, index: usize, val: bool) {
33        debug_assert!(index / 8 < self.storage.as_ref().len());
34        let byte_index = index / 8;
35        let byte = &mut self.storage.as_mut()[byte_index];
36        let bit_index = if cfg!(target_endian = "big") {
37            7 - (index % 8)
38        } else {
39            index % 8
40        };
41        let mask = 1 << bit_index;
42        if val {
43            *byte |= mask;
44        } else {
45            *byte &= !mask;
46        }
47    }
48    #[inline]
49    pub fn get(&self, bit_offset: usize, bit_width: u8) -> u64 {
50        debug_assert!(bit_width <= 64);
51        debug_assert!(bit_offset / 8 < self.storage.as_ref().len());
52        debug_assert!((bit_offset + (bit_width as usize)) / 8 <= self.storage.as_ref().len());
53        let mut val = 0;
54        for i in 0..(bit_width as usize) {
55            if self.get_bit(i + bit_offset) {
56                let index = if cfg!(target_endian = "big") {
57                    bit_width as usize - 1 - i
58                } else {
59                    i
60                };
61                val |= 1 << index;
62            }
63        }
64        val
65    }
66    #[inline]
67    pub fn set(&mut self, bit_offset: usize, bit_width: u8, val: u64) {
68        debug_assert!(bit_width <= 64);
69        debug_assert!(bit_offset / 8 < self.storage.as_ref().len());
70        debug_assert!((bit_offset + (bit_width as usize)) / 8 <= self.storage.as_ref().len());
71        for i in 0..(bit_width as usize) {
72            let mask = 1 << i;
73            let val_bit_is_set = val & mask == mask;
74            let index = if cfg!(target_endian = "big") {
75                bit_width as usize - 1 - i
76            } else {
77                i
78            };
79            self.set_bit(index + bit_offset, val_bit_is_set);
80        }
81    }
82}
83pub const _FENV_H: u32 = 1;
84pub const _FEATURES_H: u32 = 1;
85pub const _DEFAULT_SOURCE: u32 = 1;
86pub const __GLIBC_USE_ISOC2X: u32 = 0;
87pub const __USE_ISOC11: u32 = 1;
88pub const __USE_ISOC99: u32 = 1;
89pub const __USE_ISOC95: u32 = 1;
90pub const __USE_POSIX_IMPLICITLY: u32 = 1;
91pub const _POSIX_SOURCE: u32 = 1;
92pub const _POSIX_C_SOURCE: u32 = 200809;
93pub const __USE_POSIX: u32 = 1;
94pub const __USE_POSIX2: u32 = 1;
95pub const __USE_POSIX199309: u32 = 1;
96pub const __USE_POSIX199506: u32 = 1;
97pub const __USE_XOPEN2K: u32 = 1;
98pub const __USE_XOPEN2K8: u32 = 1;
99pub const _ATFILE_SOURCE: u32 = 1;
100pub const __WORDSIZE: u32 = 64;
101pub const __WORDSIZE_TIME64_COMPAT32: u32 = 1;
102pub const __SYSCALL_WORDSIZE: u32 = 64;
103pub const __TIMESIZE: u32 = 64;
104pub const __USE_MISC: u32 = 1;
105pub const __USE_ATFILE: u32 = 1;
106pub const __USE_FORTIFY_LEVEL: u32 = 0;
107pub const __GLIBC_USE_DEPRECATED_GETS: u32 = 0;
108pub const __GLIBC_USE_DEPRECATED_SCANF: u32 = 0;
109pub const __GLIBC_USE_C2X_STRTOL: u32 = 0;
110pub const _STDC_PREDEF_H: u32 = 1;
111pub const __STDC_IEC_559__: u32 = 1;
112pub const __STDC_IEC_60559_BFP__: u32 = 201404;
113pub const __STDC_IEC_559_COMPLEX__: u32 = 1;
114pub const __STDC_IEC_60559_COMPLEX__: u32 = 201404;
115pub const __STDC_ISO_10646__: u32 = 201706;
116pub const __GNU_LIBRARY__: u32 = 6;
117pub const __GLIBC__: u32 = 2;
118pub const __GLIBC_MINOR__: u32 = 39;
119pub const _SYS_CDEFS_H: u32 = 1;
120pub const __glibc_c99_flexarr_available: u32 = 1;
121pub const __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI: u32 = 0;
122pub const __HAVE_GENERIC_SELECTION: u32 = 1;
123pub const __GLIBC_USE_LIB_EXT2: u32 = 0;
124pub const __GLIBC_USE_IEC_60559_BFP_EXT: u32 = 0;
125pub const __GLIBC_USE_IEC_60559_BFP_EXT_C2X: u32 = 0;
126pub const __GLIBC_USE_IEC_60559_EXT: u32 = 0;
127pub const __GLIBC_USE_IEC_60559_FUNCS_EXT: u32 = 0;
128pub const __GLIBC_USE_IEC_60559_FUNCS_EXT_C2X: u32 = 0;
129pub const __GLIBC_USE_IEC_60559_TYPES_EXT: u32 = 0;
130pub const FE_INVALID: u32 = 1;
131pub const FE_DIVBYZERO: u32 = 4;
132pub const FE_OVERFLOW: u32 = 8;
133pub const FE_UNDERFLOW: u32 = 16;
134pub const FE_INEXACT: u32 = 32;
135pub const FE_ALL_EXCEPT: u32 = 61;
136pub const FE_TONEAREST: u32 = 0;
137pub const FE_DOWNWARD: u32 = 1024;
138pub const FE_UPWARD: u32 = 2048;
139pub const FE_TOWARDZERO: u32 = 3072;
140pub mod _bindgen_ty_1 {
141    pub type Type = ::core::ffi::c_uint;
142    pub const FE_INVALID: Type = 1;
143    pub const __FE_DENORM: Type = 2;
144    pub const FE_DIVBYZERO: Type = 4;
145    pub const FE_OVERFLOW: Type = 8;
146    pub const FE_UNDERFLOW: Type = 16;
147    pub const FE_INEXACT: Type = 32;
148}
149pub mod _bindgen_ty_2 {
150    pub type Type = ::core::ffi::c_uint;
151    pub const FE_TONEAREST: Type = 0;
152    pub const FE_DOWNWARD: Type = 1024;
153    pub const FE_UPWARD: Type = 2048;
154    pub const FE_TOWARDZERO: Type = 3072;
155}
156pub type fexcept_t = ::core::ffi::c_ushort;
157#[repr(C)]
158#[derive(Debug, Copy, Clone)]
159pub struct fenv_t {
160    pub __control_word: ::core::ffi::c_ushort,
161    pub __glibc_reserved1: ::core::ffi::c_ushort,
162    pub __status_word: ::core::ffi::c_ushort,
163    pub __glibc_reserved2: ::core::ffi::c_ushort,
164    pub __tags: ::core::ffi::c_ushort,
165    pub __glibc_reserved3: ::core::ffi::c_ushort,
166    pub __eip: ::core::ffi::c_uint,
167    pub __cs_selector: ::core::ffi::c_ushort,
168    pub _bitfield_align_1: [u16; 0],
169    pub _bitfield_1: __BindgenBitfieldUnit<[u8; 2usize]>,
170    pub __data_offset: ::core::ffi::c_uint,
171    pub __data_selector: ::core::ffi::c_ushort,
172    pub __glibc_reserved5: ::core::ffi::c_ushort,
173    pub __mxcsr: ::core::ffi::c_uint,
174}
175#[test]
176fn bindgen_test_layout_fenv_t() {
177    const UNINIT: ::core::mem::MaybeUninit<fenv_t> = ::core::mem::MaybeUninit::uninit();
178    let ptr = UNINIT.as_ptr();
179    assert_eq!(
180        ::core::mem::size_of::<fenv_t>(),
181        32usize,
182        concat!("Size of: ", stringify!(fenv_t))
183    );
184    assert_eq!(
185        ::core::mem::align_of::<fenv_t>(),
186        4usize,
187        concat!("Alignment of ", stringify!(fenv_t))
188    );
189    assert_eq!(
190        unsafe { ::core::ptr::addr_of!((*ptr).__control_word) as usize - ptr as usize },
191        0usize,
192        concat!(
193            "Offset of field: ",
194            stringify!(fenv_t),
195            "::",
196            stringify!(__control_word)
197        )
198    );
199    assert_eq!(
200        unsafe { ::core::ptr::addr_of!((*ptr).__glibc_reserved1) as usize - ptr as usize },
201        2usize,
202        concat!(
203            "Offset of field: ",
204            stringify!(fenv_t),
205            "::",
206            stringify!(__glibc_reserved1)
207        )
208    );
209    assert_eq!(
210        unsafe { ::core::ptr::addr_of!((*ptr).__status_word) as usize - ptr as usize },
211        4usize,
212        concat!(
213            "Offset of field: ",
214            stringify!(fenv_t),
215            "::",
216            stringify!(__status_word)
217        )
218    );
219    assert_eq!(
220        unsafe { ::core::ptr::addr_of!((*ptr).__glibc_reserved2) as usize - ptr as usize },
221        6usize,
222        concat!(
223            "Offset of field: ",
224            stringify!(fenv_t),
225            "::",
226            stringify!(__glibc_reserved2)
227        )
228    );
229    assert_eq!(
230        unsafe { ::core::ptr::addr_of!((*ptr).__tags) as usize - ptr as usize },
231        8usize,
232        concat!(
233            "Offset of field: ",
234            stringify!(fenv_t),
235            "::",
236            stringify!(__tags)
237        )
238    );
239    assert_eq!(
240        unsafe { ::core::ptr::addr_of!((*ptr).__glibc_reserved3) as usize - ptr as usize },
241        10usize,
242        concat!(
243            "Offset of field: ",
244            stringify!(fenv_t),
245            "::",
246            stringify!(__glibc_reserved3)
247        )
248    );
249    assert_eq!(
250        unsafe { ::core::ptr::addr_of!((*ptr).__eip) as usize - ptr as usize },
251        12usize,
252        concat!(
253            "Offset of field: ",
254            stringify!(fenv_t),
255            "::",
256            stringify!(__eip)
257        )
258    );
259    assert_eq!(
260        unsafe { ::core::ptr::addr_of!((*ptr).__cs_selector) as usize - ptr as usize },
261        16usize,
262        concat!(
263            "Offset of field: ",
264            stringify!(fenv_t),
265            "::",
266            stringify!(__cs_selector)
267        )
268    );
269    assert_eq!(
270        unsafe { ::core::ptr::addr_of!((*ptr).__data_offset) as usize - ptr as usize },
271        20usize,
272        concat!(
273            "Offset of field: ",
274            stringify!(fenv_t),
275            "::",
276            stringify!(__data_offset)
277        )
278    );
279    assert_eq!(
280        unsafe { ::core::ptr::addr_of!((*ptr).__data_selector) as usize - ptr as usize },
281        24usize,
282        concat!(
283            "Offset of field: ",
284            stringify!(fenv_t),
285            "::",
286            stringify!(__data_selector)
287        )
288    );
289    assert_eq!(
290        unsafe { ::core::ptr::addr_of!((*ptr).__glibc_reserved5) as usize - ptr as usize },
291        26usize,
292        concat!(
293            "Offset of field: ",
294            stringify!(fenv_t),
295            "::",
296            stringify!(__glibc_reserved5)
297        )
298    );
299    assert_eq!(
300        unsafe { ::core::ptr::addr_of!((*ptr).__mxcsr) as usize - ptr as usize },
301        28usize,
302        concat!(
303            "Offset of field: ",
304            stringify!(fenv_t),
305            "::",
306            stringify!(__mxcsr)
307        )
308    );
309}
310impl fenv_t {
311    #[inline]
312    pub fn __opcode(&self) -> ::core::ffi::c_uint {
313        unsafe { ::core::mem::transmute(self._bitfield_1.get(0usize, 11u8) as u32) }
314    }
315    #[inline]
316    pub fn set___opcode(&mut self, val: ::core::ffi::c_uint) {
317        unsafe {
318            let val: u32 = ::core::mem::transmute(val);
319            self._bitfield_1.set(0usize, 11u8, val as u64)
320        }
321    }
322    #[inline]
323    pub fn __glibc_reserved4(&self) -> ::core::ffi::c_uint {
324        unsafe { ::core::mem::transmute(self._bitfield_1.get(11usize, 5u8) as u32) }
325    }
326    #[inline]
327    pub fn set___glibc_reserved4(&mut self, val: ::core::ffi::c_uint) {
328        unsafe {
329            let val: u32 = ::core::mem::transmute(val);
330            self._bitfield_1.set(11usize, 5u8, val as u64)
331        }
332    }
333    #[inline]
334    pub fn new_bitfield_1(
335        __opcode: ::core::ffi::c_uint,
336        __glibc_reserved4: ::core::ffi::c_uint,
337    ) -> __BindgenBitfieldUnit<[u8; 2usize]> {
338        let mut __bindgen_bitfield_unit: __BindgenBitfieldUnit<[u8; 2usize]> = Default::default();
339        __bindgen_bitfield_unit.set(0usize, 11u8, {
340            let __opcode: u32 = unsafe { ::core::mem::transmute(__opcode) };
341            __opcode as u64
342        });
343        __bindgen_bitfield_unit.set(11usize, 5u8, {
344            let __glibc_reserved4: u32 = unsafe { ::core::mem::transmute(__glibc_reserved4) };
345            __glibc_reserved4 as u64
346        });
347        __bindgen_bitfield_unit
348    }
349}
350extern "C" {
351    pub fn feclearexcept(__excepts: ::core::ffi::c_int) -> ::core::ffi::c_int;
352    pub fn fegetexceptflag(
353        __flagp: *mut fexcept_t,
354        __excepts: ::core::ffi::c_int,
355    ) -> ::core::ffi::c_int;
356    pub fn feraiseexcept(__excepts: ::core::ffi::c_int) -> ::core::ffi::c_int;
357    pub fn fesetexceptflag(
358        __flagp: *const fexcept_t,
359        __excepts: ::core::ffi::c_int,
360    ) -> ::core::ffi::c_int;
361    pub fn fetestexcept(__excepts: ::core::ffi::c_int) -> ::core::ffi::c_int;
362    pub fn fegetround() -> ::core::ffi::c_int;
363    pub fn fesetround(__rounding_direction: ::core::ffi::c_int) -> ::core::ffi::c_int;
364    pub fn fegetenv(__envp: *mut fenv_t) -> ::core::ffi::c_int;
365    pub fn feholdexcept(__envp: *mut fenv_t) -> ::core::ffi::c_int;
366    pub fn fesetenv(__envp: *const fenv_t) -> ::core::ffi::c_int;
367    pub fn feupdateenv(__envp: *const fenv_t) -> ::core::ffi::c_int;
368}
fenv_bind/binding/binding.rs

fenv_bind/binding/
binding.rs
