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Remove all occurrences of char from string
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Try using the overload that takes CharSequence arguments (eg, String) rather than char:
str = str.replace("X", "");
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How to append a char to a std::string?
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It's less typing. In gcc, basic_string::operator+= is just a call in push_back.
– eduffy
Sep 24 '09 at 14:37
2
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Templated check for the existence of a class member function?
...SFINAE causes the template to be ignored. Usage like this:
HAS_MEM_FUNC(toString, has_to_string);
template<typename T> void
doSomething() {
if(has_to_string<T, std::string(T::*)()>::value) {
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} else {
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}
}
But note that you cannot just call that toString fu...
Remove leading or trailing spaces in an entire column of data
...ong - TRIM appears to be eliminating duplicated spaces in the middle of my string. Is there a way to only trim off leading and trailing spaces?
– Shavais
Oct 16 '15 at 15:17
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Why is C so fast, and why aren't other languages as fast or faster? [closed]
... this post:
In Delphi I could write this:
function RemoveAllAFromB(a, b: string): string;
var
before, after :string;
begin
Result := b;
if 0 < Pos(a,b) then begin
before := Copy(b,1,Pos(a,b)-Length(a));
after := Copy(b,Pos(a,b)+Length(a),Length(b));
Result := before + after;
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Regular expression to match URLs in Java
... tested successfully within RegexBuddy. However, when I copied it as Java String flavor and pasted it into Java code, it does not work. The following class prints false :
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What linux shell command returns a part of a string? [duplicate]
I want to find a linux command that can return a part of the string. In most programming languages, it's the substr() function. Does bash have any command that can be used for this purpose. I want to be able to do something like this...
substr "abcdefg" 2 3 - prints cde .
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What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...e in the C++ community(particularly ##c++ on freenode) resent the use of wstrings and wchar_t , and their use in the windows api. What is exactly "wrong" with wchar_t and wstring , and if I want to support internationalization, what are some alternatives to wide characters?
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How to write iOS app purely in C
...eclaration, like this:
// int UIApplicationMain (int argc, char *argv[], NSString *principalClassName, NSString *delegateClassName);
// So, we rely on the fact that for both the i386 & ARM architectures,
// the registers for parameters passed in remain the same whether or not
// you are using ...
How do I remove code duplication between similar const and non-const member functions?
... {
// Two lines -- one cast. This is slightly less ugly but takes an extra line.
const X& constMe = *this;
return const_cast<Z&>( constMe.z(index) );
}
#endif
};
NOTE: It is important that you do NOT put the logic in the non-const function and have the const-fun...