assertExists

Asserts that a item exists inside a range.

void assertExists(T[] haystack, T needle, string msg, string file, size_t line)
void assertExists(T[len] haystack, T needle, string msg, string file, size_t line)
void assertExists(R haystack, T needle, string msg, string file, size_t line)
@safe pure
void
assertExists
(
R
T
)
(
R haystack
,
T needle
,
lazy string msg = null
,
string file = __FILE__
,
size_t line = __LINE__
)
if (
isInputRange!R &&
is(typeof(haystack.front == needle))
)

Throws

AssertException otherwise

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Source

See Implementation