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How do I fix “for loop initial declaration used outside C99 mode” GCC error?
I'm trying to solve the 3n+1 problem and I have a for loop that looks like this:
11 Answers
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scoped_ptr 与 auto_ptr 与 shared_ptr 区别总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...它所指向的资源的所有权，并永远不会放弃这个所有权；3.shared_ptr 是可以共享所有权的智能指针。1.auto_ptr 被复制后，将失去原来所致资源的所有权；
2.scoped_ptr永远不能被复制或被赋值！scoped_ptr拥有它所指向的资源的所有权，...
Are typedef and #define the same in c?
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edited Nov 3 '09 at 10:07
answered Nov 3 '09 at 9:59
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git selective revert local changes from a file
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edited May 23 '17 at 12:02
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answered Jul 10 '09 at 12:15
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Where can I find my .emacs file for Emacs running on Windows?
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answered Oct 9 '08 at 22:53
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Redefining NULL
...casting a 0 constant to a pointer value must result in a NULL pointer (§6.3.2.3/3), and evaluating the null pointer as a boolean must be false. This can be a bit awkward if you really do want a zero address, and NULL is not the zero address.
Nevertheless, with (heavy) modifications to the compiler...
How can I join elements of an array in Bash?
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Go > operators
...ided by 2, z times".
For example, 1 << 5 is "1 times 2, 5 times" or 32. And 32 >> 5 is "32 divided by 2, 5 times" or 1.
All the other answers give the more technical definition, but nobody laid it out really bluntly and I thought you might want that.
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Self-references in object literals / initializers
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How to handle back button in activity
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328
You can handle it like this:
for API level 5 and greater
@Override
public void onBackPresse...