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xo-object2: expand Printable.test.cpp to exercise DString

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This commit is contained in:
Roland Conybeare 2026-01-14 17:08:17 -05:00
commit bdef330832
2 changed files with 29 additions and 11 deletions
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15
include/xo/object2/DString.hpp
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@ -87,10 +87,10 @@ namespace xo {
* @return pointer to newly created DString
**/
template <typename... Args>
static DString * snprintf(obj<AAllocator> mm,
size_type cap,
const char * fmt,
Args&&... args)
static DString * printf(obj<AAllocator> mm,
size_type cap,
const char * fmt,
Args&&... args)
{
DString * result = DString::empty(mm, cap);
if (result) {
@ -148,7 +148,12 @@ namespace xo {
**/
template <typename... Args>
size_type sprintf(const char * fmt, Args&&... args) {
int n = std::snprintf(chars_, capacity_, fmt, std::forward<Args>(args)...);
int n;
if constexpr (sizeof...(Args) == 0) {
n = std::snprintf(chars_, capacity_, "%s", fmt);
} else {
n = std::snprintf(chars_, capacity_, fmt, std::forward<Args>(args)...);
}
if (n < 0) {
size_ = 0;
chars_[0] = '\0';