Teach Yourself Borland C++ in 14 Days - portal

NOTE
Function Description
Getting Your Feet Wet
strlen() Returns the length of the string.
strupr() Converts all characters in a string to uppercase.
sprintf() Builds a string based on a variable number of parameters.
The string operations discussed here are how strings are handled in C.
Most C++ compilers provide a cstring class that simplifies the difficulties
inherent in the C way of handling strings. (C++Builder’s Visual
Component Library contains a class called Strings that handles string
operations. Check the C++Builder online help for more information on
Strings.) Although the C way of handling strings is a little quirky, it is
by no means obsolete. C++ programmers use C-style string operations
on a daily basis as well as string classes such as cstring.
I won’t go into examples of all of the string-manipulation functions listed in the table, but
I’ll touch on a couple of the more widely used ones. The strcpy() function is used to copy
one string to another. The source string can be a variable or a string literal. Take the following
code, for example:
// set up a string to hold 29 characters
char buff[30];
// copy a string literal to the buffer
strcpy(buff, “This is a test.”);
// display it
cout