[PATCH v2] libstdc++: Test for %S precision for durations with integral representation.
Tomasz Kamiński
tkaminsk@redhat.com
Wed Jun 25 09:26:57 GMT 2025
Existing test are extented to cover cases where not precision is specified,
or it is specified to zero. The precision value is ignored in all cases.
libstdc++-v3/ChangeLog:
* testsuite/std/time/format/precision.cc: New tests.
---
v2 extents test to cover .0 as precision.
Testing on x86_64-linux. std/format/time* test passed, also with -D_GLIBCXX_USE_CXX11_ABI=0
and -D_GLIBCXX_DEBUG.
.../testsuite/std/time/format/precision.cc | 104 +++++++++++++++++-
1 file changed, 99 insertions(+), 5 deletions(-)
diff --git a/libstdc++-v3/testsuite/std/time/format/precision.cc b/libstdc++-v3/testsuite/std/time/format/precision.cc
index ccb2c77ce05..aa266156c1f 100644
--- a/libstdc++-v3/testsuite/std/time/format/precision.cc
+++ b/libstdc++-v3/testsuite/std/time/format/precision.cc
@@ -16,6 +16,10 @@ test_empty()
std::basic_string<CharT> res;
const duration<double> d(33.111222);
+ res = std::format(WIDEN("{:}"), d);
+ VERIFY( res == WIDEN("33.1112s") );
+ res = std::format(WIDEN("{:.0}"), d);
+ VERIFY( res == WIDEN("33.1112s") );
res = std::format(WIDEN("{:.3}"), d);
VERIFY( res == WIDEN("33.1112s") );
res = std::format(WIDEN("{:.6}"), d);
@@ -25,6 +29,10 @@ test_empty()
// Uses ostream operator<<
const duration<double, std::nano> nd = d;
+ res = std::format(WIDEN("{:}"), nd);
+ VERIFY( res == WIDEN("3.31112e+10ns") );
+ res = std::format(WIDEN("{:.0}"), nd);
+ VERIFY( res == WIDEN("3.31112e+10ns") );
res = std::format(WIDEN("{:.3}"), nd);
VERIFY( res == WIDEN("3.31112e+10ns") );
res = std::format(WIDEN("{:.6}"), nd);
@@ -40,6 +48,10 @@ test_Q()
std::basic_string<CharT> res;
const duration<double> d(7.111222);
+ res = std::format(WIDEN("{:%Q}"), d);
+ VERIFY( res == WIDEN("7.111222") );
+ res = std::format(WIDEN("{:.0%Q}"), d);
+ VERIFY( res == WIDEN("7.111222") );
res = std::format(WIDEN("{:.3%Q}"), d);
VERIFY( res == WIDEN("7.111222") );
res = std::format(WIDEN("{:.6%Q}"), d);
@@ -47,7 +59,23 @@ test_Q()
res = std::format(WIDEN("{:.9%Q}"), d);
VERIFY( res == WIDEN("7.111222") );
+ duration<double, std::milli> md = d;
+ res = std::format(WIDEN("{:%Q}"), md);
+ VERIFY( res == WIDEN("7111.222") );
+ res = std::format(WIDEN("{:.0%Q}"), md);
+ VERIFY( res == WIDEN("7111.222") );
+ res = std::format(WIDEN("{:.3%Q}"), md);
+ VERIFY( res == WIDEN("7111.222") );
+ res = std::format(WIDEN("{:.6%Q}"), md);
+ VERIFY( res == WIDEN("7111.222") );
+ res = std::format(WIDEN("{:.9%Q}"), md);
+ VERIFY( res == WIDEN("7111.222") );
+
const duration<double, std::nano> nd = d;
+ res = std::format(WIDEN("{:%Q}"), nd);
+ VERIFY( res == WIDEN("7111222000") );
+ res = std::format(WIDEN("{:.0%Q}"), nd);
+ VERIFY( res == WIDEN("7111222000") );
res = std::format(WIDEN("{:.3%Q}"), nd);
VERIFY( res == WIDEN("7111222000") );
res = std::format(WIDEN("{:.6%Q}"), nd);
@@ -58,12 +86,16 @@ test_Q()
template<typename CharT>
void
-test_S()
+test_S_fp()
{
std::basic_string<CharT> res;
// Precision is ignored, but period affects output
- const duration<double> d(5.111222);
+ duration<double> d(5.111222);
+ res = std::format(WIDEN("{:%S}"), d);
+ VERIFY( res == WIDEN("05") );
+ res = std::format(WIDEN("{:.0%S}"), d);
+ VERIFY( res == WIDEN("05") );
res = std::format(WIDEN("{:.3%S}"), d);
VERIFY( res == WIDEN("05") );
res = std::format(WIDEN("{:.6%S}"), d);
@@ -71,7 +103,11 @@ test_S()
res = std::format(WIDEN("{:.9%S}"), d);
VERIFY( res == WIDEN("05") );
- const duration<double, std::milli> md = d;
+ duration<double, std::milli> md = d;
+ res = std::format(WIDEN("{:%S}"), md);
+ VERIFY( res == WIDEN("05.111") );
+ res = std::format(WIDEN("{:.0%S}"), md);
+ VERIFY( res == WIDEN("05.111") );
res = std::format(WIDEN("{:.3%S}"), md);
VERIFY( res == WIDEN("05.111") );
res = std::format(WIDEN("{:.6%S}"), md);
@@ -79,13 +115,70 @@ test_S()
res = std::format(WIDEN("{:.9%S}"), md);
VERIFY( res == WIDEN("05.111") );
- const duration<double, std::nano> nd = d;
+ duration<double, std::micro> ud = d;
+ res = std::format(WIDEN("{:%S}"), ud);
+ VERIFY( res == WIDEN("05.111222") );
+ res = std::format(WIDEN("{:.0%S}"), ud);
+ VERIFY( res == WIDEN("05.111222") );
+ res = std::format(WIDEN("{:.3%S}"), ud);
+ VERIFY( res == WIDEN("05.111222") );
+ res = std::format(WIDEN("{:.6%S}"), ud);
+ VERIFY( res == WIDEN("05.111222") );
+ res = std::format(WIDEN("{:.9%S}"), ud);
+ VERIFY( res == WIDEN("05.111222") );
+
+ duration<double, std::nano> nd = d;
+ res = std::format(WIDEN("{:%S}"), nd);
+ VERIFY( res == WIDEN("05.111222000") );
+ res = std::format(WIDEN("{:.0%S}"), nd);
+ VERIFY( res == WIDEN("05.111222000") );
res = std::format(WIDEN("{:.3%S}"), nd);
VERIFY( res == WIDEN("05.111222000") );
res = std::format(WIDEN("{:.6%S}"), nd);
VERIFY( res == WIDEN("05.111222000") );
res = std::format(WIDEN("{:.9%S}"), nd);
VERIFY( res == WIDEN("05.111222000") );
+
+ duration<double, std::pico> pd = d;
+ res = std::format(WIDEN("{:%S}"), pd);
+ VERIFY( res == WIDEN("05.111222000000") );
+ res = std::format(WIDEN("{:.0%S}"), pd);
+ VERIFY( res == WIDEN("05.111222000000") );
+ res = std::format(WIDEN("{:.3%S}"), pd);
+ VERIFY( res == WIDEN("05.111222000000") );
+ res = std::format(WIDEN("{:.6%S}"), pd);
+ VERIFY( res == WIDEN("05.111222000000") );
+ res = std::format(WIDEN("{:.9%S}"), pd);
+ VERIFY( res == WIDEN("05.111222000000") );
+}
+
+template<typename CharT>
+void
+test_S_int()
+{
+ std::basic_string<CharT> res;
+ const nanoseconds src(7'000'012'345);
+
+ auto d = floor<seconds>(src);
+ res = std::format(WIDEN("{:%S}"), d);
+ VERIFY( res == WIDEN("07") );
+
+ auto md = floor<milliseconds>(src);
+ res = std::format(WIDEN("{:%S}"), md);
+ VERIFY( res == WIDEN("07.000") );
+
+ auto ud = floor<microseconds>(src);
+ res = std::format(WIDEN("{:%S}"), ud);
+ VERIFY( res == WIDEN("07.000012") );
+
+ auto nd = floor<nanoseconds>(src);
+ res = std::format(WIDEN("{:%S}"), nd);
+ VERIFY( res == WIDEN("07.000012345") );
+
+ using picoseconds = duration<unsigned long long, std::pico>;
+ auto pd = floor<picoseconds>(src);
+ res = std::format(WIDEN("{:%S}"), pd);
+ VERIFY( res == WIDEN("07.000012345000") );
}
template<typename CharT>
@@ -94,7 +187,8 @@ test_all()
{
test_empty<CharT>();
test_Q<CharT>();
- test_S<CharT>();
+ test_S_int<CharT>();
+ test_S_fp<CharT>();
}
int main()
--
2.49.0
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