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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 * @return pointer to newly created DString
**/ **/
template <typename... Args> template <typename... Args>
static DString * snprintf(obj<AAllocator> mm, static DString * printf(obj<AAllocator> mm,
size_type cap, size_type cap,
const char * fmt, const char * fmt,
Args&&... args) Args&&... args)
{ {
DString * result = DString::empty(mm, cap); DString * result = DString::empty(mm, cap);
if (result) { if (result) {
@ -148,7 +148,12 @@ namespace xo {
**/ **/
template <typename... Args> template <typename... Args>
size_type sprintf(const char * fmt, Args&&... 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) { if (n < 0) {
size_ = 0; size_ = 0;
chars_[0] = '\0'; chars_[0] = '\0';

25
utest/Printable.test.cpp
View file

@ -12,6 +12,10 @@
#include <xo/object2/IGCObject_DList.hpp> #include <xo/object2/IGCObject_DList.hpp>
#include <xo/object2/IPrintable_DList.hpp> #include <xo/object2/IPrintable_DList.hpp>
#include <xo/object2/DString.hpp>
#include <xo/object2/string/IGCObject_DString.hpp>
#include <xo/object2/string/IPrintable_DString.hpp>
#include <xo/object2/DInteger.hpp> #include <xo/object2/DInteger.hpp>
#include <xo/object2/IGCObject_DInteger.hpp> #include <xo/object2/IGCObject_DInteger.hpp>
@ -35,6 +39,7 @@ namespace ut {
using xo::scm::ListOps; using xo::scm::ListOps;
using xo::scm::DList; using xo::scm::DList;
using xo::scm::DInteger; using xo::scm::DInteger;
using xo::scm::DString;
using xo::mm::AAllocator; using xo::mm::AAllocator;
using xo::mm::ACollector; using xo::mm::ACollector;
using xo::mm::AGCObject; using xo::mm::AGCObject;
@ -70,10 +75,10 @@ namespace ut {
std::vector<testcase_pp> std::vector<testcase_pp>
s_testcase_v = { s_testcase_v = {
testcase_pp(16384, 8192, 0, "()"), testcase_pp(16384, 8192, 0, "()"),
testcase_pp(16384, 8192, 1, "(1000)"), testcase_pp(16384, 8192, 1, "(01000)"),
testcase_pp(16384, 8192, 2, "(1000 1197)"), testcase_pp(16384, 8192, 2, "(01000 1197)"),
testcase_pp(16384, 8192, 5, "(1000 1197 1394 1591 1788)"), testcase_pp(16384, 8192, 5, "(01000 1197 01394 1591 01788)"),
testcase_pp(16384, 8192, 10, "(1000 1197 1394 1591 1788 1985 2182 2379 2576 2773)"), testcase_pp(16384, 8192, 10, "(01000 1197 01394 1591 01788 1985 02182 2379 02576 2773)"),
testcase_pp(16384, 8192, 20, "(...)"), testcase_pp(16384, 8192, 20, "(...)"),
}; };
} }
@ -117,9 +122,17 @@ namespace ut {
c_o.add_gc_root(&l0_o); c_o.add_gc_root(&l0_o);
for(int ip1 = tc.list_.size(); ip1 > 0; --ip1) { for(int ip1 = tc.list_.size(); ip1 > 0; --ip1) {
auto xi_o = DInteger::box<AGCObject>(gc_o, tc.list_[ip1 - 1]); obj<AGCObject> elt;
l0_o = ListOps::cons(gc_o, xi_o, l0_o); //elt = DInteger::box<AGCObject>(gc_o, tc.list_[ip1 - 1]);
if (ip1 % 2 == 0) {
elt = DInteger::box<AGCObject>(gc_o, tc.list_[ip1 - 1]);
} else {
elt = obj<AGCObject,DString>(DString::printf(gc_o, 80, "%05d", tc.list_[ip1 - 1]));
}
l0_o = ListOps::cons(gc_o, elt, l0_o);
} }
// TODO: log_streambuf using DArena // TODO: log_streambuf using DArena