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“Undefined reference to” template class constructor [duplicate]
...er won't compile the constructors cola<float>::cola(...) and cola<string>::cola(...) until it is forced to do so. And we must ensure that this compilation happens for the constructors at least once in the entire compilation process, or we will get the 'undefined reference' error. (This a...
Removing a list of characters in string
I want to remove characters in a string in python:
18 Answers
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What is the difference between char array and char pointer in C?
...s done with the data are separate concerns. This example prints the entire string because that is how printf handles the %s format string: start at the address provided and continue until encountering null terminator. If you wanted to print just one character you could use the %c format string, for ...
In STL maps, is it better to use map::insert than []?
...y create:
using std::cout; using std::endl;
typedef std::map<int, std::string> MyMap;
MyMap map;
// ...
std::pair<MyMap::iterator, bool> res = map.insert(MyMap::value_type(key,value));
if ( ! res.second ) {
cout << "key " << key << " already exists "
<...
How can I use map and receive an index as well in Scala?
...ted
scala> ci map (i => i+"=#"+ci.count) toList
res0: List[java.lang.String] = List(These=#0,are=#1,words=#2)
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How to capitalize the first character of each word in a string
...ion built into Java that capitalizes the first character of each word in a String, and does not affect the others?
51 Answe...
How to remove certain characters from a string in C++?
...
string str("(555) 555-5555");
char chars[] = "()-";
for (unsigned int i = 0; i < strlen(chars); ++i)
{
// you need include <algorithm> to use general algorithms like std::remove()
str.erase (st...
.NET / C# - Convert char[] to string
What is the proper way to turn a char[] into a string?
7 Answers
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Difference between string and char[] types in C++
...d now I'm taking a look at C++.
I'm used to char arrays for dealing with C strings, but while I look at C++ code I see there are examples using both string type and char arrays:
...
std::string to char*
I want to convert a std::string into a char* or char[] data type.
18 Answers
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