C++2007-09-17
Using cout.width() in C++
The default width of your output will be just enough space to print the number, character, or string in the output buffer. You can change this by using width(). Because width() is
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C++2007-09-17
Using peek() and putback() with cin in C++
The input object cin has two additional methods that can come in rather handy: peek(), which looks at but does not extract the next character, and putback(), which inserts a charac
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cin.ignore() in C++
At times you want to ignore the remaining characters on a line until you hit either end of line (EOL) or end of file (EOF). The member function ignore() serves this purpose. ignore
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Getting User Input Using cin in C++
The global object cin is responsible for input and is made available to your program when you include iostream.h. In most of the examples in this site, you used the overloaded extr
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Printing values in DEBUG mode in C++
In addition to asserting that something is true using the assert() macro, you may want to print the current value of pointers, variables, and strings. This can be very helpful in c
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assert() Versus Exceptions in C++
It is important to note that assert() is not intended to handle runtime error conditions such as bad data, out-of-memory conditions, unable to open file, and so forth. assert() is
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C++2007-09-17
assert() example program in C++
Many compilers offer an assert() macro. The assert() macro returns TRUE if its parameter evaluates TRUE and takes some kind of action if it evaluates FALSE. Many compilers will abo
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Using #define, The Preprocessor and the Compiler in C++
Every time you run your compiler, your preprocessor runs first. The preprocessor looks for preprocessor instructions, each of which begins with a pound symbol (#). The effect of ea
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strlen() sample program in C++
The most popular library is almost certainly the string library, with perhaps the function strlen() called most often. strlen() returns the length of a null-terminated string. List
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strcpy() and strncpy() sample program in C++
The second most popular function in string.h probably was strcpy(), which copied one string to another. This may now be diminished somewhat as C-style null-terminated strings have
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strcat() and strncat() sample program in C++
Related to strcpy() and strncpy() are the standard functions strcat() and strncat(). The former concatenates one string to another; that is, it appends the string it takes as its s
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ctime() sample program in C++
The standard library supplies the function time(), which takes a pointer to a time_t variable and fills it with the current time. It also provides ctime(), which takes the time_t v
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