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authorDan Goodliffe <dan@randomdan.homeip.net>2024-09-23 20:11:20 +0100
committerDan Goodliffe <dan@randomdan.homeip.net>2024-09-23 20:11:20 +0100
commit7aeca8c54d218f28ba8d4f0e5be1aec6219dbf54 (patch)
tree6f9c122e0abdb4949a3c102b2245d007969d6091 /lib/chronology.cpp
parentDon't create lots of unnecessary tmps (diff)
parentAdjust light colour as sun rises/sets (diff)
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Merge branch 'sunpos'HEADmain
Diffstat (limited to 'lib/chronology.cpp')
-rw-r--r--lib/chronology.cpp12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/chronology.cpp b/lib/chronology.cpp
new file mode 100644
index 0000000..8707bba
--- /dev/null
+++ b/lib/chronology.cpp
@@ -0,0 +1,12 @@
+#include "chronology.h"
+
+time_t
+operator""_time_t(const char * iso, size_t)
+{
+ struct tm tm {};
+
+ if (const auto end = strptime(iso, "%FT%T", &tm); !end || *end) {
+ throw std::invalid_argument("Invalid date");
+ }
+ return mktime(&tm);
+}