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Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_
...-std=c++0x -O3 -save-temps -march=native
Ubuntu 12
Different Registers: 18.6195 GB/s
.L4:
movq (%rbx,%rax,8), %r8
movq 8(%rbx,%rax,8), %r9
movq 16(%rbx,%rax,8), %r10
movq 24(%rbx,%rax,8), %r11
addq $4, %rax
popcnt %r8, %r8
add %r8, %rdx
popcnt %r...
How to support UTF-8 encoding in Eclipse
How can I add UTF-8 support in eclipse? I want to add for example Russian language but eclipse won't support it. What should I do? Please guide me.
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Using multiple arguments for string formatting in Python (e.g., '%s … %s')
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8 Answers
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Active
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What is Unicode, UTF-8, UTF-16?
What's the basis for Unicode and why the need for UTF-8 or UTF-16?
I have researched this on Google and searched here as well but it's not clear to me.
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How to import existing *.sql files in PostgreSQL 8.4?
I am using PostgreSQL 8.4, and I have some *.sql files to import into a database. How can I do so?
5 Answers
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What's the best way to get the current URL in Spring MVC?
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Rasmus Faber
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answered Sep 29 '09 at 6:58
DaffDaff
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What's the difference between ASCII and Unicode?
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ASCII defines 128 characters, which map to the numbers 0–127. Unicode defines (less than) 221 characters, which, similarly, map to numbers 0–221 (though not all numbers are currently assigned, and some are reserved).
Unicode is a supers...
In Postgresql, force unique on combination of two columns
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edited Jan 8 '13 at 18:44
answered Jan 8 '13 at 18:38
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Sass and combined child selector
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edited Apr 30 '15 at 22:58
Continuity8
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answered...
invalid multibyte char (US-ASCII) with Rails and Ruby 1.9
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689
Have you tried adding a magic comment in the script where you use non-ASCII chars? It should go...