Module core::ffi

Platform-specific types, as defined by C.

Code that interacts via FFI will almost certainly be using the base types provided by C, which aren’t nearly as nicely defined as Rust’s primitive types. This module provides types which will match those defined by C, so that code that interacts with C will refer to the correct types.

Modules

• c_char_definition 🔒
• c_int_definition 🔒
• c_long_definition 🔒
• c_str 🔒
• sealed_trait 🔒

Macros

• impl_va_arg_safe 🔒
• type_alias 🔒
• type_alias_no_nz 🔒

Structs

• VaListExperimental
  A wrapper for a va_list
• VaListImplExperimental
  x86_64 ABI implementation of a va_list.
• CStr
  Representation of a borrowed C string.
• FromBytesUntilNulError
  An error indicating that no nul byte was present.
• FromBytesWithNulError
  An error indicating that a nul byte was not in the expected position.

Enums

• c_void
  Equivalent to C’s void type when used as a pointer.

Functions

• va_arg 🔒 ^⚠
  Loads an argument of type T from the va_list ap and increment the argument ap points to.
• va_copy 🔒 ^⚠
  Copies the current location of arglist src to the arglist dst.
• va_end 🔒 ^⚠
  Destroy the arglist ap after initialization with va_start or va_copy.

Type Definitions

• NonZero_c_charExperimental
  Type alias for NonZero version of c_char
• NonZero_c_intExperimental
  Type alias for NonZero version of c_int
• NonZero_c_longExperimental
  Type alias for NonZero version of c_long
• NonZero_c_longlongExperimental
  Type alias for NonZero version of c_longlong
• NonZero_c_scharExperimental
  Type alias for NonZero version of c_schar
• NonZero_c_shortExperimental
  Type alias for NonZero version of c_short
• NonZero_c_ucharExperimental
  Type alias for NonZero version of c_uchar
• NonZero_c_uintExperimental
  Type alias for NonZero version of c_uint
• NonZero_c_ulongExperimental
  Type alias for NonZero version of c_ulong
• NonZero_c_ulonglongExperimental
  Type alias for NonZero version of c_ulonglong
• NonZero_c_ushortExperimental
  Type alias for NonZero version of c_ushort
• c_ptrdiff_tExperimental
  Equivalent to C’s ptrdiff_t type, from stddef.h (or cstddef for C++).
• c_size_tExperimental
  Equivalent to C’s size_t type, from stddef.h (or cstddef for C++).
• c_ssize_tExperimental
  Equivalent to C’s ssize_t (on POSIX) or SSIZE_T (on Windows) type.
• c_char
  Equivalent to C’s char type.
• c_double
  Equivalent to C’s double type.
• c_float
  Equivalent to C’s float type.
• c_int
  Equivalent to C’s signed int (int) type.
• c_long
  Equivalent to C’s signed long (long) type.
• c_longlong
  Equivalent to C’s signed long long (long long) type.
• c_schar
  Equivalent to C’s signed char type.
• c_short
  Equivalent to C’s signed short (short) type.
• c_uchar
  Equivalent to C’s unsigned char type.
• c_uint
  Equivalent to C’s unsigned int type.
• c_ulong
  Equivalent to C’s unsigned long type.
• c_ulonglong
  Equivalent to C’s unsigned long long type.
• c_ushort
  Equivalent to C’s unsigned short type.