exactLength

Value must be exactly N units long

@safe

@constraint

struct exactLength {

size_t n;

bool check(T actual);

string errorMessage();

}

Members

Functions

check bool check(T actual): Undocumented in source. Be warned that the author may not have intended to support it.
errorMessage string errorMessage(): Undocumented in source. Be warned that the author may not have intended to support it.

Variables

n size_t n;: Undocumented in source.

Examples

assert(test!(exactLength(2))("12"));
assert(!test!(exactLength(2))("1"));
assert(!test!(exactLength(2))("123"));

assert(test!(exactLength(4))("1234"));
assert(!test!(exactLength(4))("12345"));

assert(test!(exactLength(1))("1"));
assert(!test!(exactLength(1))("12"));

assert(test!(exactLength(0))(""));
assert(!test!(exactLength(0))("1"));

immutable string null_ = null;
assert(test!(exactLength(0))(null_));

exactLength

Members

Functions

Variables

Examples

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