Trouble building a dynamic string array. Coming from C#
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I've already written my code in C# and it works. But to integrate it into our product, I have to re-write it C++ 6.0. I'm very weak here and am lost. My problem is this: I start with a line extracted from a file. The string contains a variable number of individual commands consisting of one letter followed by a number. In C# my code is built like this:
private string[] LineSplitter(string LineIn){
if (LineIn == "")
return null;
string[] strOut = new string[0];
int i = 0;
string strChar;
do
{
...code to locate length of number following letter
} while ((isNumeric(strChar)) && (i + 1 < LineIn.Length));
strOut = (string[])ResizeArray(strOut, strOut.Length + 1);
strOut[strOut.Length - 1] = LineIn.Substring(0, i);
LineIn = LineIn.Substring(i);
} while (LineIn.Length > 0);
return strOut;
}(And I'm sorry for putting C# in a C++ group, but I'm looking for the C++ equivalent) Here are my questions... 1. How do I declare the function as string array? 2. How do I increment array elements until I'm done? Each line can have a variable number of elements. 3. How do I return the result. Please be gentle. I'm struggling with C++ and this is my first post. I'm wrestling through the majority of everything else in this process, but this has my brain in a pickle.
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I've already written my code in C# and it works. But to integrate it into our product, I have to re-write it C++ 6.0. I'm very weak here and am lost. My problem is this: I start with a line extracted from a file. The string contains a variable number of individual commands consisting of one letter followed by a number. In C# my code is built like this:
private string[] LineSplitter(string LineIn){
if (LineIn == "")
return null;
string[] strOut = new string[0];
int i = 0;
string strChar;
do
{
...code to locate length of number following letter
} while ((isNumeric(strChar)) && (i + 1 < LineIn.Length));
strOut = (string[])ResizeArray(strOut, strOut.Length + 1);
strOut[strOut.Length - 1] = LineIn.Substring(0, i);
LineIn = LineIn.Substring(i);
} while (LineIn.Length > 0);
return strOut;
}(And I'm sorry for putting C# in a C++ group, but I'm looking for the C++ equivalent) Here are my questions... 1. How do I declare the function as string array? 2. How do I increment array elements until I'm done? Each line can have a variable number of elements. 3. How do I return the result. Please be gentle. I'm struggling with C++ and this is my first post. I'm wrestling through the majority of everything else in this process, but this has my brain in a pickle.
Mark Randel wrote:
1. How do I declare the function as string array?
Not exactly an array but this is the C++ way -
std::vectorstd::string
Mark Randel wrote:
How do I increment array elements until I'm done? Each line can have a variable number of elements.
while (LineIn.size() > 0)
Mark Randel wrote:
How do I return the result.
std::vectorstd::string strOut;
.
.
.
return strOut;«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)modified on Wednesday, November 18, 2009 5:53 PM
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Mark Randel wrote:
1. How do I declare the function as string array?
Not exactly an array but this is the C++ way -
std::vectorstd::string
Mark Randel wrote:
How do I increment array elements until I'm done? Each line can have a variable number of elements.
while (LineIn.size() > 0)
Mark Randel wrote:
How do I return the result.
std::vectorstd::string strOut;
.
.
.
return strOut;«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)modified on Wednesday, November 18, 2009 5:53 PM
Thanks a lot. The
vectorwas the key to what I was looking for. I'm usingCString, though. But it all works fine. My question about adding to the array was concerning changing the size of the array. The vector makes that easy with thepush_backcommand. Also, returning the value from the function required that I make the type of the return as a vector:std::vector CNCLine::LineSplitter(CString LineIn)
{
std::vector strOut;
... code
return strOut;
}Works like clockwork. Thanks for the direction.
____________________________________________________ I'd rather have a frontal lobotomy than a bottle in front of me... Bill W
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Thanks a lot. The
vectorwas the key to what I was looking for. I'm usingCString, though. But it all works fine. My question about adding to the array was concerning changing the size of the array. The vector makes that easy with thepush_backcommand. Also, returning the value from the function required that I make the type of the return as a vector:std::vector CNCLine::LineSplitter(CString LineIn)
{
std::vector strOut;
... code
return strOut;
}Works like clockwork. Thanks for the direction.
____________________________________________________ I'd rather have a frontal lobotomy than a bottle in front of me... Bill W
Interesting... the post erased the "" command after the vector designation. Hope it doesn't with this text. Otherwise, I'm going to end up looking quite foolish. :D
____________________________________________________ I'd rather have a frontal lobotomy than a bottle in front of me... Bill W
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Interesting... the post erased the "" command after the vector designation. Hope it doesn't with this text. Otherwise, I'm going to end up looking quite foolish. :D
____________________________________________________ I'd rather have a frontal lobotomy than a bottle in front of me... Bill W
That is because
<and>are using byHTMLfor the tags. Replace<with<and>with>In fact you can simply click on the signs at the top of the editor to insert them.«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)