Stack Exchange

John Zwinck

Singapore

http://www.linkedin.com/in/jzwinck

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Top Questions
69 votes

Why is memcmp(a, b, 4) only sometimes optimized to a uint32 comparison?

c gcc clang x86-64 compiler-optimization asked Jul 12 '17 at 8:25
stackoverflow.com

66 votes

Why can't GCC optimize the logical bitwise AND pair in “x && (x & 4242)” to “x & 4242”?

c++ gcc optimization compiler-optimization asked Apr 14 '14 at 8:45
stackoverflow.com

64 votes

Compression formats with good support for random access within archives?

compression gzip archive zlib random-access asked Jan 9 '09 at 22:29
stackoverflow.com

50 votes

Computer login with password only, without username

login password security efficiency username asked Jan 15 '13 at 12:32
ux.stackexchange.com

44 votes

Why does GCC implement isnan() more efficiently for C++ <cmath> than C <math.h>?

c++ c optimization nan constantfolding asked Sep 26 '14 at 5:27
stackoverflow.com

37 votes

Javascript console.log(object) vs. concatenating string

javascript node.js string-concatenation pretty-print asked Jan 30 '13 at 5:22
stackoverflow.com

34 votes

How to write Python generator function that never yields anything

python generator yield asked Jun 7 '11 at 14:15
stackoverflow.com

34 votes

Does mysqldump --password really do what it says?

mysql mysqldump mysql-error-1044 asked Sep 29 '08 at 14:36
stackoverflow.com

28 votes

Why is GCC tricked into allowing undefined behavior simply by putting it in a loop?

c++ gcc g++ compiler-warnings undefined-behavior asked Sep 8 '14 at 5:04
stackoverflow.com

26 votes

GCC optimizes fixed range-based for loop as if it had longer, variable length

c++ c++11 gcc optimization icc asked Aug 4 '17 at 1:37
stackoverflow.com

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Top Answers
1855
Difference between git stash pop and git stash apply
stackoverflow.com

458
Simplify Chained Comparison
stackoverflow.com

449
What does `set -x` do?
stackoverflow.com

340
Download large file in python with requests
stackoverflow.com

279
How to do a recursive find/replace of a string with awk or sed?
stackoverflow.com

159
Pandas: convert categories to numbers
stackoverflow.com

159
Convert string to buffer Node
stackoverflow.com

155
Why is the empty dictionary a dangerous default value in Python?
stackoverflow.com

149
“In-source builds are not allowed” in cmake
stackoverflow.com

132
Inline conditions in Lua (a == b ? “yes” : “no”)?
stackoverflow.com

112
What do these operators mean (** , ^ , %, //)?
stackoverflow.com

110
How to use git commands after enable gitlab's second-factor authentication
stackoverflow.com

75
Usage of `…` (three-dots or dot-dot-dot) in functions
stackoverflow.com

72
const before parameter vs const after function name c++
stackoverflow.com

72
How to create a C project with CLion
stackoverflow.com

69
Unable to apply methods on timestamps using Series built-ins
stackoverflow.com

66
How to insert strings containing slashes with sed?
stackoverflow.com

64
What is a sysroot exactly and how do I create one ?
stackoverflow.com

58
how to reset index pandas dataframe after dropna() pandas dataframe
stackoverflow.com

56
Does “pass” mean OK or not OK?
english.stackexchange.com

54
Python print string like a raw string
stackoverflow.com

54
What is an `int foo::*bar::*`?
stackoverflow.com

54
NumPy array is not JSON serializable
stackoverflow.com

50
Pandas rename column by position?
stackoverflow.com

44
Do any States in the US give traffic tickets for 5 mph above the speed limit?
travel.stackexchange.com

41
being sure about “unknown evaluation order”
stackoverflow.com

40
pandas drop row based on index vs ix
stackoverflow.com

38
Github not update `raw` after commit
stackoverflow.com

36
git add and commit single tracked file in one command
stackoverflow.com

36
Difference between vector::begin() and std::begin()
stackoverflow.com

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