On Tue, Sep 2, 2008 at 12:33 AM, Jean-Daniel Dupas <[EMAIL PROTECTED]> wrote: > > Le 2 sept. 08 à 00:13, Steven Noyes a écrit : > >> >> On Sep 1, 2008, at 1:38 PM, Jean-Daniel Dupas wrote: >> >>> Unlike java, Obj-C does not have the concept of class variable. >>> Your static variable is a classic C variable, and C variable are not >>> automatically initialized to NULL. >>> The first time you call init, relationshipMatch may contains anything and >>> may not be NULL, and so it will never be properly initialized. >> >> Note: In "C", all static and global variables are initialized to zeros (or >> NULL pointers). Local variables (auto variables from the stack) are not >> initialized. >> >> Steven > > Yep, I just saw that static are an exception and are initialized to NULL or > 0, but I'm not sure about "globals".
Globals have a static storage duration: C99 6.2.4: 3 An object whose identifier is declared with external or internal linkage, or with the storage-class specifier static has static storage duration. Its lifetime is the entire execution of the program and its stored value is initialized only once, prior to program startup. -- Clark S. Cox III [EMAIL PROTECTED]
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