Stack Exchange

John Zwinck

Singapore

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

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Top Questions
68 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

57 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

42 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

36 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

Does mysqldump --password really do what it says?

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

28 votes

How to write Python generator function that never yields anything

python generator yield asked Jun 7 '11 at 14:15
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
1537
Difference between git stash pop and git stash apply
stackoverflow.com

410
Simplify Chained Comparison
stackoverflow.com

326
What does `set -x` do?
stackoverflow.com

248
How to do a recursive find/replace of a string with awk or sed?
stackoverflow.com

232
Download large file in python with requests
stackoverflow.com

109
Convert string to buffer Node
stackoverflow.com

109
Pandas: convert categories to numbers
stackoverflow.com

107
“In-source builds are not allowed” in cmake
stackoverflow.com

105
Inline conditions in Lua (a == b ? “yes” : “no”)?
stackoverflow.com

98
Why is the empty dictionary a dangerous default value in Python?
stackoverflow.com

90
What do these operators mean (** , ^ , %, //)?
stackoverflow.com

72
Usage of `…` (three-dots or dot-dot-dot) in functions
stackoverflow.com

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

59
How to replace strings containing slashes with sed?
stackoverflow.com

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

54
const before parameter vs const after function name c++
stackoverflow.com

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

47
Unable to apply methods on timestamps using Series built-ins
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 rename column by position?
stackoverflow.com

39
What is a sysroot exactly and how do I create one ?
stackoverflow.com

38
How to use git commands after enable gitlab's second-factor authentication
stackoverflow.com

36
NumPy array is not JSON serializable
stackoverflow.com

36
how to reset index pandas dataframe after dropna() pandas dataframe
stackoverflow.com

35
Why would one use MACRO+0 !=0
stackoverflow.com

35
git add and commit single tracked file in one command
stackoverflow.com

35
Python print string like a raw string
stackoverflow.com

35
Does sin_addr.s_addr = INADDR_ANY; need htonl at all?
stackoverflow.com

34
pandas drop row based on index vs ix
stackoverflow.com

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