new files

probingpt/util.cpp

@@ -0,0 +1,24 @@
+#include "util.hh"
+#include "util/exception.hh"
+
+namespace probingpt
+{
+
+template<>
+bool Scan<bool>(const std::string &input)
+{
+  std::string lc = ToLower(input);
+  if (lc == "yes" || lc == "y" || lc == "true" || lc == "1") return true;
+  if (lc == "no" || lc == "n" || lc == "false" || lc == "0") return false;
+  UTIL_THROW2("Could not interpret " << input << " as a boolean.  After lowercasing, valid values are yes, y, true, 1, no, n, false, and 0.");
+}
+
+const std::string ToLower(const std::string& str)
+{
+  std::string lc(str);
+  std::transform(lc.begin(), lc.end(), lc.begin(), (int (*)(int))std::tolower);
+  return
+    lc  ;
+}
+
+}

probingpt/util.hh

@@ -0,0 +1,24 @@
+#pragma once
+#include <string>
+#include <sstream>
+
+namespace probingpt
+{
+
+//! convert string to variable of type T. Used to reading floats, int etc from files
+template<typename T>
+inline T Scan(const std::string &input)
+{
+  std::stringstream stream(input);
+  T ret;
+  stream >> ret;
+  return ret;
+}
+
+//! Specialisation to understand yes/no y/n true/false 0/1
+template<>
+bool Scan<bool>(const std::string &input);
+
+const std::string ToLower(const std::string& str);
+
+}