X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=pv%2Futil.hpp;h=fab29a14f05ac21ea90b88d37088c2f9274a278f;hb=0efa7f0cc59eab39dccce698d8fb6675feeb3e73;hp=dd7be222b073760b2ec5392ee222617d9717f869;hpb=0cbadf1c6a80ec37481ae11ee3cb709eeffda3e7;p=pulseview.git

diff --git a/pv/util.hpp b/pv/util.hpp
index dd7be222..fab29a14 100644
--- a/pv/util.hpp
+++ b/pv/util.hpp
@@ -17,8 +17,8 @@
  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef PULSEVIEW_UTIL_HPP
-#define PULSEVIEW_UTIL_HPP
+#ifndef PULSEVIEW_PV_UTIL_HPP
+#define PULSEVIEW_PV_UTIL_HPP
 
 #include <cmath>
 #include <string>
@@ -38,6 +38,7 @@ namespace pv {
 namespace util {
 
 enum class TimeUnit {
+	None = 0,
 	Time = 1,
 	Samples = 2
 };
@@ -61,6 +62,11 @@ typedef boost::multiprecision::number<
 	boost::multiprecision::cpp_dec_float<24>,
 	boost::multiprecision::et_off> Timestamp;
 
+/**
+ * Chooses a prefix so that the value in front of the decimal point is between 1 and 999.
+ */
+SIPrefix determine_value_prefix(double v);
+
 /**
  * Formats a given timestamp with the specified SI prefix.
  *
@@ -142,4 +148,4 @@ vector<string> split_string(string text, string separator);
 
 Q_DECLARE_METATYPE(pv::util::Timestamp)
 
-#endif // PULSEVIEW_UTIL_HPP
+#endif // PULSEVIEW_PV_UTIL_HPP