Resolve clippy::zero_ptr

tgross35 · tgross35 · commit c4eefd5d933d · 2025-09-19T05:09:25.000Z
Recent versions of Clippy now lint against `0 as *(const|mut) T` rather
than using `null`/`null_mut`. Make the updates required for this to
pass.
diff --git a/src/fuchsia/mod.rs b/src/fuchsia/mod.rs
@@ -2356,7 +2356,7 @@ pub const ST_NOATIME: c_ulong = 1024;
 pub const ST_NODIRATIME: c_ulong = 2048;
 
 pub const RTLD_NEXT: *mut c_void = -1i64 as *mut c_void;
-pub const RTLD_DEFAULT: *mut c_void = 0i64 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 pub const RTLD_NODELETE: c_int = 0x1000;
 pub const RTLD_NOW: c_int = 0x2;
 
@@ -2500,7 +2500,7 @@ pub const EFD_SEMAPHORE: c_int = 0x1;
 
 pub const LOG_NFACILITIES: c_int = 24;
 
-pub const SEM_FAILED: *mut crate::sem_t = 0 as *mut sem_t;
+pub const SEM_FAILED: *mut crate::sem_t = ptr::null_mut();
 
 pub const RB_AUTOBOOT: c_int = 0x01234567u32 as i32;
 pub const RB_HALT_SYSTEM: c_int = 0xcdef0123u32 as i32;
diff --git a/src/macros.rs b/src/macros.rs
@@ -82,7 +82,7 @@ macro_rules! prelude {
             #[allow(unused_imports)]
             pub(crate) use ::core::prelude::v1::derive;
             #[allow(unused_imports)]
-            pub(crate) use ::core::{fmt, hash, iter, mem};
+            pub(crate) use ::core::{fmt, hash, iter, mem, ptr};
             #[allow(unused_imports)]
             pub(crate) use mem::{align_of, align_of_val, size_of, size_of_val};
 
diff --git a/src/unix/bsd/freebsdlike/mod.rs b/src/unix/bsd/freebsdlike/mod.rs
@@ -1197,9 +1197,9 @@ pub const _SC_RAW_SOCKETS: c_int = 119;
 pub const _SC_SYMLOOP_MAX: c_int = 120;
 pub const _SC_PHYS_PAGES: c_int = 121;
 
-pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = 0 as *mut _;
-pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = 0 as *mut _;
-pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = 0 as *mut _;
+pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = ptr::null_mut();
+pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = ptr::null_mut();
+pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = ptr::null_mut();
 pub const PTHREAD_MUTEX_ERRORCHECK: c_int = 1;
 pub const PTHREAD_MUTEX_RECURSIVE: c_int = 2;
 pub const PTHREAD_MUTEX_NORMAL: c_int = 3;
@@ -1331,7 +1331,7 @@ pub const B230400: speed_t = 230400;
 pub const EXTA: speed_t = 19200;
 pub const EXTB: speed_t = 38400;
 
-pub const SEM_FAILED: *mut sem_t = 0 as *mut sem_t;
+pub const SEM_FAILED: *mut sem_t = ptr::null_mut();
 
 pub const CRTSCTS: crate::tcflag_t = 0x00030000;
 pub const CCTS_OFLOW: crate::tcflag_t = 0x00010000;
diff --git a/src/unix/bsd/netbsdlike/mod.rs b/src/unix/bsd/netbsdlike/mod.rs
@@ -650,7 +650,7 @@ pub const B230400: speed_t = 230400;
 pub const EXTA: speed_t = 19200;
 pub const EXTB: speed_t = 38400;
 
-pub const SEM_FAILED: *mut sem_t = 0 as *mut sem_t;
+pub const SEM_FAILED: *mut sem_t = ptr::null_mut();
 
 pub const CRTSCTS: crate::tcflag_t = 0x00010000;
 pub const CRTS_IFLOW: crate::tcflag_t = CRTSCTS;
diff --git a/src/unix/bsd/netbsdlike/openbsd/mod.rs b/src/unix/bsd/netbsdlike/openbsd/mod.rs
@@ -1321,9 +1321,9 @@ pub const SCHED_RR: c_int = 3;
 
 pub const ST_NOSUID: c_ulong = 2;
 
-pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = 0 as *mut _;
-pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = 0 as *mut _;
-pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = 0 as *mut _;
+pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = ptr::null_mut();
+pub const PTHREAD_COND_INITIALIZER: pthread_cond_t = ptr::null_mut();
+pub const PTHREAD_RWLOCK_INITIALIZER: pthread_rwlock_t = ptr::null_mut();
 
 pub const PTHREAD_MUTEX_ERRORCHECK: c_int = 1;
 pub const PTHREAD_MUTEX_RECURSIVE: c_int = 2;
diff --git a/src/unix/cygwin/mod.rs b/src/unix/cygwin/mod.rs
@@ -1018,7 +1018,7 @@ pub const NGROUPS_MAX: c_int = 1024;
 pub const FORK_RELOAD: c_int = 1;
 pub const FORK_NO_RELOAD: c_int = 0;
 
-pub const RTLD_DEFAULT: *mut c_void = 0isize as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 pub const RTLD_LOCAL: c_int = 0;
 pub const RTLD_LAZY: c_int = 1;
 pub const RTLD_NOW: c_int = 2;
diff --git a/src/unix/haiku/mod.rs b/src/unix/haiku/mod.rs
@@ -1059,7 +1059,7 @@ pub const FD_SETSIZE: c_int = 1024;
 pub const RTLD_LOCAL: c_int = 0x0;
 pub const RTLD_NOW: c_int = 0x1;
 pub const RTLD_GLOBAL: c_int = 0x2;
-pub const RTLD_DEFAULT: *mut c_void = 0isize as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 
 pub const BUFSIZ: c_uint = 8192;
 pub const FILENAME_MAX: c_uint = 256;
diff --git a/src/unix/hurd/mod.rs b/src/unix/hurd/mod.rs
@@ -1791,7 +1791,7 @@ pub const RB_DEBUGGER: c_int = 0x1000;
 
 // semaphore.h
 pub const __SIZEOF_SEM_T: usize = 20;
-pub const SEM_FAILED: *mut crate::sem_t = 0 as *mut sem_t;
+pub const SEM_FAILED: *mut crate::sem_t = ptr::null_mut();
 
 // termios.h
 pub const IGNBRK: crate::tcflag_t = 1;
@@ -1962,7 +1962,7 @@ pub const CTIME: u8 = 0;
 pub const CBRK: u8 = 0u8;
 
 // dlfcn.h
-pub const RTLD_DEFAULT: *mut c_void = 0i64 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 pub const RTLD_NEXT: *mut c_void = -1i64 as *mut c_void;
 pub const RTLD_LAZY: c_int = 1;
 pub const RTLD_NOW: c_int = 2;
diff --git a/src/unix/linux_like/android/b64/mod.rs b/src/unix/linux_like/android/b64/mod.rs
@@ -225,7 +225,7 @@ pub const SA_SIGINFO: c_int = 0x00000004;
 
 pub const RTLD_GLOBAL: c_int = 0x00100;
 pub const RTLD_NOW: c_int = 2;
-pub const RTLD_DEFAULT: *mut c_void = 0i64 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 
 pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t {
     value: 0,
diff --git a/src/unix/linux_like/android/mod.rs b/src/unix/linux_like/android/mod.rs
@@ -1517,7 +1517,7 @@ pub const ST_RELATIME: c_ulong = 4096;
 pub const RTLD_NOLOAD: c_int = 0x4;
 pub const RTLD_NODELETE: c_int = 0x1000;
 
-pub const SEM_FAILED: *mut sem_t = 0 as *mut sem_t;
+pub const SEM_FAILED: *mut sem_t = ptr::null_mut();
 
 pub const AI_PASSIVE: c_int = 0x00000001;
 pub const AI_CANONNAME: c_int = 0x00000002;
diff --git a/src/unix/linux_like/emscripten/mod.rs b/src/unix/linux_like/emscripten/mod.rs
@@ -772,7 +772,7 @@ pub const ST_NOATIME: c_ulong = 1024;
 pub const ST_NODIRATIME: c_ulong = 2048;
 
 pub const RTLD_NEXT: *mut c_void = -1i64 as *mut c_void;
-pub const RTLD_DEFAULT: *mut c_void = 0i64 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 pub const RTLD_NODELETE: c_int = 0x1000;
 pub const RTLD_NOW: c_int = 0x2;
 
@@ -842,7 +842,7 @@ pub const SHM_NORESERVE: c_int = 0o10000;
 
 pub const LOG_NFACILITIES: c_int = 24;
 
-pub const SEM_FAILED: *mut crate::sem_t = 0 as *mut sem_t;
+pub const SEM_FAILED: *mut crate::sem_t = ptr::null_mut();
 
 pub const AI_PASSIVE: c_int = 0x0001;
 pub const AI_CANONNAME: c_int = 0x0002;
diff --git a/src/unix/linux_like/linux/mod.rs b/src/unix/linux_like/linux/mod.rs
@@ -2681,7 +2681,7 @@ pub const ST_NOATIME: c_ulong = 1024;
 pub const ST_NODIRATIME: c_ulong = 2048;
 
 pub const RTLD_NEXT: *mut c_void = -1i64 as *mut c_void;
-pub const RTLD_DEFAULT: *mut c_void = 0i64 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 pub const RTLD_NODELETE: c_int = 0x1000;
 pub const RTLD_NOW: c_int = 0x2;
 
@@ -2805,7 +2805,7 @@ pub const EFD_SEMAPHORE: c_int = 0x1;
 
 pub const LOG_NFACILITIES: c_int = 24;
 
-pub const SEM_FAILED: *mut crate::sem_t = 0 as *mut sem_t;
+pub const SEM_FAILED: *mut crate::sem_t = ptr::null_mut();
 
 pub const RB_AUTOBOOT: c_int = 0x01234567u32 as i32;
 pub const RB_HALT_SYSTEM: c_int = 0xcdef0123u32 as i32;
diff --git a/src/unix/newlib/horizon/mod.rs b/src/unix/newlib/horizon/mod.rs
@@ -173,7 +173,7 @@ pub const AF_INET6: c_int = 23;
 
 pub const FIONBIO: c_ulong = 1;
 
-pub const RTLD_DEFAULT: *mut c_void = 0 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 
 // For pthread get/setschedparam
 pub const SCHED_FIFO: c_int = 1;
diff --git a/src/unix/newlib/vita/mod.rs b/src/unix/newlib/vita/mod.rs
@@ -108,7 +108,7 @@ pub const POLLERR: c_short = 0x0008;
 pub const POLLHUP: c_short = 0x0010;
 pub const POLLNVAL: c_short = 0x0020;
 
-pub const RTLD_DEFAULT: *mut c_void = 0 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 
 pub const SOL_SOCKET: c_int = 0xffff;
 pub const SO_NONBLOCK: c_int = 0x1100;
diff --git a/src/unix/nuttx/mod.rs b/src/unix/nuttx/mod.rs
@@ -274,7 +274,7 @@ pub const PTHREAD_MUTEX_INITIALIZER: pthread_mutex_t = pthread_mutex_t {
 };
 
 // dlfcn.h
-pub const RTLD_DEFAULT: *mut c_void = 0 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 
 // stdlib.h
 pub const EXIT_SUCCESS: i32 = 0;
diff --git a/src/unix/redox/mod.rs b/src/unix/redox/mod.rs
@@ -355,7 +355,7 @@ pub const F_TEST: c_int = 3;
 pub const AT_FDCWD: c_int = -100;
 
 // FIXME(redox): relibc {
-pub const RTLD_DEFAULT: *mut c_void = 0i64 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 // }
 
 // dlfcn.h
diff --git a/src/vxworks/mod.rs b/src/vxworks/mod.rs
@@ -516,7 +516,7 @@ pub const EAI_SYSTEM: c_int = 11;
 
 // FIXME(vxworks): This is not defined in vxWorks, but we have to define it here
 // to make the building pass for getrandom and std
-pub const RTLD_DEFAULT: *mut c_void = 0i64 as *mut c_void;
+pub const RTLD_DEFAULT: *mut c_void = ptr::null_mut();
 
 //Clock Lib Stuff
 pub const CLOCK_REALTIME: c_int = 0x0;
