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discard """
targets: "cpp"
matrix: "--gc:orc"
"""
import std/options
# bug #18410
type
O = object of RootObj
val: pointer
proc p(): Option[O] = none(O)
doAssert $p() == "none(O)"
# bug #17351
type
Foo = object of RootObj
Foo2 = object of Foo
Bar = object
x: Foo2
var b = Bar()
discard b
# bug #4678
{.emit: """/*TYPESECTION*/
enum class SomeEnum {A,B,C};
""".}
type
EnumVector[T: enum] {.importcpp: "std::vector", header: "vector".} = object
SomeEnum {.importcpp, nodecl.} = enum
A,B,C
proc asVector*[T](t: T): EnumVector[T] =
discard
# Nim generates this signature here:
# N_NIMCALL(std::vector<> , asvector_106028_3197418230)(SomeEnum t0)
discard asVector(SomeEnum.A)
block: # bug #10219
type
Vector[T] {.importcpp: "std::vector", header: "vector".} = object
proc initVector[T](n: csize_t): Vector[T]
{.importcpp: "std::vector<'*0>(@)", header: "vector".}
proc unsafeIndex[T](this: var Vector[T], i: csize_t): var T
{.importcpp: "#[#]", header: "vector".}
proc `[]`[T](this: var Vector[T], i: Natural): var T {.inline, noinit.} =
when compileOption("boundChecks"):
# this.checkIndex i
discard
result = this.unsafeIndex(csize_t(i))
var v1 = initVector[int](10)
doAssert v1[0] == 0
block: # bug #12703 bug #19588
type
cstringConstImpl {.importc:"const char*".} = cstring
constChar = distinct cstringConstImpl
{.emit: """
const char* foo() {
return "hello";
}
""".}
proc foo(): constChar {.importcpp.} # change to importcpp for C++ backend
doAssert $(foo().cstring) == "hello"
|