Get field information from a struct type

Returns metadata about a specific field, including its byte offset, size, and type information.

Usage

ffi_field_info(struct_type, field)

Arguments

struct_type

StructType object

field

Character field name or integer field index (1-based)

Value

FieldInfo object with offset, size, alignment info

Examples

if (FALSE) { # \dontrun{
Point <- ffi_struct(x = ffi_int(), y = ffi_double())
ffi_field_info(Point, "x")
# <FieldInfo 'x' type=int, offset=0, size=4>
ffi_field_info(Point, "y")
# <FieldInfo 'y' type=double, offset=8, size=8>  (offset 8 due to alignment)
} # }