You don't need a program to compare strings since std::string already provides support for all the comparison operators (<, <=, >, >=, == and !=).
To roll your own you must first create a string class and then provide operator overloads for the comparison operators. To compare strings, start at the first character in each string and compare. So long as they remain equal, move onto the next character. The comparison ends as soon as any character differs. You need only compare these two characters to decide which string is the lesser.
To perform a case insensitive comparison, copy the two characters and convert the copies to lower case (or upper case, it doesn't matter). Then compare the copies. Do this for each character as you compare them rather than converting the entire string.
strcpy
You do not need to program string manipulation as it is already part of the standard library. See std::string and std::wstring.
No.
use the strrev() function on the given string and compare with original string.If both are equal they are palindromes else not.
C++ already provides a string class in the C++ standard template library. #include<iostream> #include<string> int main() { using namespace std; string s {"Hello world!"}; cout << s << endl; }
Use the following function to count the number of digits in a string. size_t count_digits (const std::string& str) { size_t count = 0; for (std::string::const_iterator it=str.begin(); it!=str.end(); ++it) { const char& c = *it; if (c>='0' && c<='9'); ++count; } return count; }
Nothing.The C language only recognizes a few keywords, like "for" and "if". Most of what's in a C program ... that doesn't reference routines in the C program itself ... are library calls, and cputs() is one of those. What it does is write its argument (which should be a pointer to a character string) to the console... console put string.
std::string::substr();
A std::string is an object that encapsulates an array of type char whereas a C-style string is a primitive array with no members. A std::string is guaranteed to be null-terminated but a C-style string is not.
Yes.
Yes, you can program games with C++.
The use of the reverse string in C program is used to reverse the letters in the string. An example would be reverse me would be reversed to em esrever.