local variable in c

1, can local variables and global variable duplicate? A: Yes, the local will screen the overall situation. To use a global variable, you need to use the "::" Local variables can have the same name as global variables, and when referenced within a

1. Can a local variable be renamed with a global variable? A: Yes. Global blocking will be performed in some cases. To use global variables, you must use "::" A local variable can have the same name as a global variable. A local variable with the

The 1.static global variable is only initialized once, preventing it from being referenced in other file units;2.static Local variables are initialized only once, the next time based on the last result value;The 3.static function has only one copy

Original blog, reprint please indicate the source--Zhou Xuewei http://www.cnblogs.com/zxouxuewei/Static is used in two ways: static in process-oriented programming and static in object-oriented programming. The former applies to ordinary variables

Instructions to press constants into the stackAconst_null to press the null object reference into the stackICONST_M1 pressing the int type constant-1 into the stackICONST_0 pressing the int type constant 0 into the stackiconst_1 pressing the int

The 1.c/c++ variable has different scopes according to the different life cycles of the defined positions, and the scope can be divided into 6 types:Global scopes, local scopes, statement scopes, class scopes, namespace scopes, and file scopes.From

What is a thread-local variable (thread-local variable). Easy to use threads: do not share sometimes the best ThreadLocal classes are quietly appearing in version 1.2 of the Java platform. Although supporting thread-local variables has long been

Scope global variable local variable static variable external variable constant volatile variable Scope:The scope rule tells us the valid range of a variable, where it is created, and where it

First, the preparation of knowledge-Program memory allocation The memory used by a program compiled by C + + is divided into the following sections 1, stack area (stack)-by the compiler automatically assigned to release, store the function of the

All variables in C language have their own scopes. The types of declarative variables are different, and their scopes are also different. Variables in C language can be divided into local variables and global variables according to the scope.I.