new function to split string into a float-vector

tools/useful.cpp

@@ -22,6 +22,9 @@
 #include <climits>
 #include <stdio.h>
 #include <stdlib.h>
+#include <iomanip>
+#include <sstream>
+#include <boost/algorithm/string.hpp>
 #include <iostream>
 
 unsigned int CalcNyquistNum(double fmax, double dT)
@@ -70,3 +73,19 @@ std::vector<unsigned int> AssignJobs2Threads(unsigned int jobs, unsigned int nrT
 
 	return jpt;
 }
+
+std::vector<float> SplitString2Float(std::string str, std::string delimiter)
+{
+	std::vector<float> v_f;
+	std::vector<std::string> results;
+	boost::split(results, str, boost::is_any_of(delimiter));
+
+	for (size_t n=0;n<results.size();++n)
+	{
+		std::istringstream is(results.at(n));
+		float num;
+		if (is >> num)
+			v_f.push_back(num);
+	}
+	return v_f;
+}

tools/useful.h

@@ -19,6 +19,7 @@
 #define USEFUL_H
 
 #include <vector>
+#include <string>
 
 //! Calc the nyquist number of timesteps for a given frequency and timestep
 unsigned int CalcNyquistNum(double fmax, double dT);
@@ -29,4 +30,6 @@ double CalcNyquistFrequency(unsigned int nyquist, double dT);
 //! Calculate an optimal job distribution to a given number of threads. Will return a vector with the jobs for each thread.
 std::vector<unsigned int> AssignJobs2Threads(unsigned int jobs, unsigned int nrThreads, bool RemoveEmpty=false);
 
+std::vector<float> SplitString2Float(std::string str, std::string delimiter=",");
+
 #endif // USEFUL_H