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xo-object2: + StringOps.printf() + utest

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This commit is contained in:
Roland Conybeare 2026-01-15 11:29:35 -05:00
commit aea37f2523
2 changed files with 33 additions and 0 deletions
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18
include/xo/object2/StringOps.hpp
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@ -34,6 +34,13 @@ namespace xo {
typename ASrcFacet = AGCObject>
static obj<AFacet,DString> clone(obj<AAllocator> mm,
obj<ASrcFacet,DString> src);
/** wrapper for DString.printf() **/
template <typename AFacet = AGCObject, typename... Args>
static obj<AFacet,DString> printf(obj<AAllocator> mm,
size_type cap,
const char * fmt,
Args&&... args);
};
template <typename AFacet>
@ -56,6 +63,17 @@ namespace xo {
{
return obj<AFacet,DString>(DString::clone(mm, src.data()));
}
template <typename AFacet, typename... Args>
obj<AFacet,DString>
StringOps::printf(obj<AAllocator> mm,
size_type cap,
const char * fmt,
Args&&... args)
{
return obj<AFacet,DString>(DString::printf(mm, cap, fmt,
std::forward<Args>(args)...));
}
}
}

15
utest/StringOps.test.cpp
View file

@ -81,6 +81,21 @@ namespace xo {
REQUIRE(copy.data()->capacity() == src.data()->capacity());
REQUIRE(std::strcmp(copy.data()->chars(), src.data()->chars()) == 0);
}
TEST_CASE("StringOps-printf", "[object2][StringOps]")
{
ArenaConfig cfg { .name_ = "testarena",
.size_ = 4*1024 };
DArena arena = DArena::map(cfg);
auto alloc = with_facet<AAllocator>::mkobj(&arena);
auto s = StringOps::printf(alloc, 32, "hello %s %d", "world", 42);
REQUIRE(s.data() != nullptr);
REQUIRE(s.data()->capacity() == 32);
REQUIRE(s.data()->size() == 14);
REQUIRE(std::strcmp(s.data()->chars(), "hello world 42") == 0);
}
} /*namespace ut*/
} /*namespace xo*/