
15 Statements
15.5 Declaration statements
15.5.1 Local variable declarations
Paragraph 11 A local-variable-declaration declares one or more local variables. local-variable-declaration : type local-variable-declarators local-variable-declarators : local-variable-declarator local-variable-declarators , local-variable-declarator local-variable-declarator : identifier identifier = local-variable-initializer local-variable-initializer : expression array-initializer
Paragraph 21 The type of a local-variable-declaration specifies the type of the variables introduced by the declaration.
Paragraph 31 The type is followed by a list of local-variable-declarators, each of which introduces a new variable. 2 A local-variable-declarator consists of an identifier that names the variable, optionally followed by an "=" token and a local-variable-initializer that gives the initial value of the variable.
Paragraph 41 The value of a local variable is obtained in an expression using a simple-name (§14.5.2), and the value of a local variable is modified using an assignment (§14.13). 2 A local variable must be definitely assigned (§12.3) at each location where its value is obtained.
Paragraph 51 The scope of a local variable declared in a local-variable-declaration is the block in which the declaration occurs. 2 It is an error to refer to a local variable in a textual position that precedes the local-variable-declarator of the local variable. 3 Within the scope of a local variable, it is a compile-time error to declare another local variable or constant with the same name.
Paragraph 61 A local variable declaration that declares multiple variables is equivalent to multiple declarations of single variables with the same type. 2 Furthermore, a variable initializer in a local variable declaration corresponds exactly to an assignment statement that is inserted immediately after the declaration. [Example: The example
void F() {
int x = 1, y, z = x * 2;
}
corresponds exactly to
void F() {
int x; x = 1;
int y;
int z; z = x * 2;
}
end example]
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