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Published on 2010-05-16T22:42:00Z
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2010/05/16
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For regular C strings, a NULL signifies the end of data.
What about std::string, can I have a string with embedded NULLS?
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In unmanaged c++ dll i have a function which takes constant std::string as argument
Prototype : void read ( const std::string &imageSpec_ )
I call this function from managed c++ dll by passing a std::string.
When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly…
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I have an std::string containing a command to be executed with execv, what is the best "C++" way to convert it to the "char *argv[]" that is required by the second parameter of execv()?
To clarify:
std::string cmd = "mycommand arg1 arg2";
char *cmd_argv[];
StrToArgv(cmd, cmd_argv); // how do I…
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A there any g++ options which can detect improper initialization of std::string with NULL const char*?
I was in the process of turning some int fields into std::string ones, i.e:
struct Foo
{
int id;
Foo() : id(0) {}
};
...turned into:
struct Foo
{
std::string id;
Foo() : id(0)…
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Is there any advantage to using char*'s instead of std::string?
I know char*'s are usually defined on the stack, so we know exactly how much memory we'll use, is this actually a good argument for their use? Or is std::string better in every way?
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ok i have this program working using c-strings. I am wondering if it is possible to read in blocks of unformatted text to a std::string? I toyed arround with if >> but this reads in line by line. I've been breaking my code and banging my head against the wall trying to use std::string, so…
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Hi,
I'm trying to figure out a way to format a date string that sits inside string using javascript.
The string can be:
"hello there From 2010-03-04 00:00:00.0 to 2010-03-31 00:00:00.0"
or
"stuff like 2010-03-04 20:00:00.0 and 2010-03-31 00:00:02.0 blah blah"
I'd like it to end up like:
"stuff…
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A colleague told me that using the following method:
string url = "SomeURL";
string ext = "SomeExt";
string sub = "SomeSub";
string subSub = "moreSub";
string Url = @"http://www." + Url +@"/"+ ext +@"/"+ sub + subSub;
is not efficenet (takes more resources) and it is preferred to use the…
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The following output produces a string with no closing xml tag.
m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString() + "</G3Grid:Spots>"
This following code works correctly
m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString()
m_rFlight…
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This is my first time trying to do something useful with Java..
I'm trying to do something like this but it doesn't work:
Map<String, String> propertyMap = new HashMap<String, String>();
propertyMap = JacksonUtils.fromJSON(properties, Map.class);
But the IDE says: 'Unchecked assignment…
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Is there a way to insert a string in a string constant/variable that contains a string specifier?
Example:
temp_body = 'Hello %s, please visit %s to confirm your registration.'
body = temp_body % (name, url)
But this raises a TypeError.
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