By Kyle Loudon
C++ is a posh language with many sophisticated elements. this is often very true by way of object-oriented and template programming. The C++ Pocket Reference is a reminiscence reduction for C++ programmers, permitting them to speedy lookup utilization and syntax for strange and sometimes used elements of the language. The book's small dimension makes it effortless to hold approximately, making sure that it'll continually be at-hand while wanted. Programmers also will savour the book's brevity; as a lot info as attainable has been stuffed into its small pages.In the C++ Pocket Reference, you'll find:
- Information on C++ forms and kind conversions
- Syntax for C++ statements and preprocessor directives
- Help stating and defining sessions, and coping with inheritance
- Information on declarations, garage sessions, arrays, tips, strings, and expressions
- Refreshers on key ideas of C++ equivalent to namespaces and scope
C++ Pocket Reference turns out to be useful to Java and C programmers making the transition to C++, or who locate themselves sometimes programming in C++. the 3 languages are usually confusingly related. This publication permits programmers acquainted with C or Java to quick arise to hurry on how a selected build or suggestion is carried out in C++.Together with its spouse STL Pocket Reference, the C++ Pocket Reference types the most concise, easily-carried, quick-references to the C++ language available.
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Additional info for C++ pocket reference
When an operator for addition, subtraction, increment, or decrement is applied to a pointer p of type T, p is treated as an array of type T. As a result, p + n points to the nth successive element in the array, and p − n points to the nth previous element. If n is 0, p + n points to the first element in the array. So, if T were a type with a size of 24 bytes, p += 2 would actually increase the address stored in p by 48 bytes. Pointer arithmetic illustrates the close relationship between pointers and arrays in C++.
A source file after preprocessing has been completed is called a translation unit. Startup The function main is the designated start of a C++ program, which you as the developer must define. In its standard form, this function accepts zero or two arguments supplied by the operating system when the program starts, although many C++ implementations allow additional parameters. Its return type is int. For example: int main( ) int main(int argc, char *argv) argc is the number of arguments specified on the command line; argv is an array of null-terminated (C-style) strings containing the arguments in the order they appear.
Therefore, it has the same effect as the following but avoids the need for i to be evaluated twice: i = i + 5; After any assignment, the value of the expression is the value that was assigned. This allows assignments to be chained together, as follows: a = b = c; Exception (throw) The throw operator is used to throw an exception. See Exception Handling for a complete description of this operator. Sequence (,) The sequence operator, which is a comma, evaluates two operands from left to right. The value of the expression becomes the value of the last operand.