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xo-arena: + DArenaVector.data utest

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Roland Conybeare 2026-01-06 17:14:32 -05:00
commit be590ae7b4
1 changed files with 32 additions and 0 deletions
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32
xo-arena/utest/DArenaVector.test.cpp
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@ -368,6 +368,38 @@ namespace xo {
REQUIRE(vec2[0] == 1.0);
REQUIRE(vec2[1] == 2.0);
}
TEST_CASE("DArenaVector-data", "[arena][DArenaVector]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4096 };
DArenaVector<double> vec = DArenaVector<double>::map(cfg);
vec.push_back(1.0);
vec.push_back(2.0);
vec.push_back(3.0);
double * ptr = vec.data();
// data() points to first element
REQUIRE(ptr == &vec[0]);
// can read via pointer
REQUIRE(ptr[0] == 1.0);
REQUIRE(ptr[1] == 2.0);
REQUIRE(ptr[2] == 3.0);
// can write via pointer
ptr[1] = 99.0;
REQUIRE(vec[1] == 99.0);
// const version
const DArenaVector<double> & cvec = vec;
const double * cptr = cvec.data();
REQUIRE(cptr[0] == 1.0);
REQUIRE(cptr[1] == 99.0);
REQUIRE(cptr[2] == 3.0);
}
}
}