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How many GCC optimization levels are there?
...the second occurrence of OPT_O, which was in lto-wrapper.c.
LTO means Link Time Optimization, which as the name suggests is going to need an -O option, and will be linked to collec2 (which is basically a linker).
In fact, the first line of lto-wrapper.c says:
/* Wrapper to call lto. Used by collect...
Regular expression for letters, numbers and - _
I'm having trouble checking in PHP if a value is is any of the following combinations
6 Answers
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Print newline in PHP in single quotes
I try to use single quotes as much as possible and I've noticed that I can't use \n in single quotes. I know I can just enter a newline literally by pressing return, but that screws up the indentation of my code.
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How can I remove an SSH key?
... to apply to automatically-loaded keys (and ssh-add -t X to change the lifetime of automatically-loaded keys), would restore the behavior most users expect.
More precisely, about the issue:
The culprit is gpg-keyring-daemon:
It subverts the normal operation of ssh-agent, mostly just so that it...
Remove trailing newline from the elements of a string list
I have to take a large list of words in the form:
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7
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Build an ASCII chart of the most commonly used words in a given text [closed]
Build an ASCII chart of the most commonly used words in a given text.
59 Answers
59
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When should I use File.separator and when File.pathSeparator?
In the File class there are two strings, separator and pathSeparator .
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Placeholder in UITextView
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[super awakeFromNib];
// Use Interface Builder User Defined Runtime Attributes to set
// placeholder and placeholderColor in Interface Builder.
if (!self.placeholder) {
[self setPlaceholder:@""];
}
if (!self.placeholderColor) {
[self setPlaceholderColor...
How can I expand the full path of the current file to pass to a command in Vim?
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6 Answers
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Why use 'git rm' to remove a file instead of 'rm'?
On SVN, removing something from the filesystem directly (rather than using svn) created a load of headaches.
7 Answers
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