Module `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_str CStr and its related types.
va_list C's "variable arguments"

Structs

CStr A dynamically-sized view of a C string.
FromBytesUntilNulError An error indicating that no nul byte was present.
VaList A variable argument list, ABI-compatible with va_list in C.

Enums

FromBytesWithNulError An error indicating that a nul byte was not in the expected position.
c_void Equivalent to C's void type when used as a [pointer].

Traits

VaArgSafe Types that are valid to read using VaList::arg.

Type Aliases

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_ptrdiff_t Equivalent to C's ptrdiff_t type, from stddef.h (or cstddef for C++).
c_schar Equivalent to C's signed char type.
c_short Equivalent to C's signed short (short) type.
c_size_t Equivalent to C's size_t type, from stddef.h (or cstddef for C++).
c_ssize_t Equivalent to C's ssize_t (on POSIX) or SSIZE_T (on Windows) 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.