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John Zwinck
Singapore
http://www.linkedin.com/in/jzwinck
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Top Questions
69
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, 2014 at 8:45
stackoverflow.com
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, 2017 at 8:25
stackoverflow.com
50
votes
Computer login with password only, without username
login
password
security
efficiency
username
asked Jan 15, 2013 at 12:32
ux.stackexchange.com
46
votes
Why does GCC implement isnan() more efficiently for C++ <cmath> than C <math.h>?
c++
c
optimization
nan
constantfolding
asked Sep 26, 2014 at 5:27
stackoverflow.com
42
votes
Javascript console.log(object) vs. concatenating string
javascript
node.js
string-concatenation
pretty-print
asked Jan 30, 2013 at 5:22
stackoverflow.com
36
votes
How to write Python generator function that never yields anything
python
generator
yield
asked Jun 7, 2011 at 14:15
stackoverflow.com
36
votes
Does mysqldump --password really do what it says?
mysql
mysqldump
mysql-error-1044
asked Sep 29, 2008 at 14:36
stackoverflow.com
28
votes
Why can't C++11 strongly-typed enum be cast to underlying type via pointer?
c++
c++11
enums
enum-class
strongly-typed-enum
asked Jul 4, 2014 at 4:08
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, 2014 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, 2017 at 1:37
stackoverflow.com
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Top Answers
2193
Difference between git stash pop and git stash apply
stackoverflow.com
550
What does `set -x` do?
stackoverflow.com
501
Simplify Chained Comparison
stackoverflow.com
449
Download large file in python with requests
stackoverflow.com
300
How can I do a recursive find/replace of a string with awk or sed?
stackoverflow.com
236
Why is the empty dictionary a dangerous default value in Python?
stackoverflow.com
204
How to use git commands after enable gitlab's second-factor authentication
stackoverflow.com
195
Convert string to buffer Node
stackoverflow.com
195
Pandas: convert categories to numbers
stackoverflow.com
185
"In-source builds are not allowed" in cmake
stackoverflow.com
169
Inline conditions in Lua (a == b ? "yes" : "no")?
stackoverflow.com
127
What do these operators mean (** , ^ , %, //)?
stackoverflow.com
91
const before parameter vs const after function name c++
stackoverflow.com
85
Python print string like a raw string
stackoverflow.com
85
Unable to apply methods on timestamps using Series built-ins
stackoverflow.com
83
how to reset index pandas dataframe after dropna() pandas dataframe
stackoverflow.com
83
What is a sysroot exactly and how do I create one ?
stackoverflow.com
78
Usage of `...` (three-dots or dot-dot-dot) in functions
stackoverflow.com
75
How to insert strings containing slashes with sed?
stackoverflow.com
74
How to create a C project with CLion
stackoverflow.com
64
NumPy array is not JSON serializable
stackoverflow.com
59
Github not update `raw` after commit
stackoverflow.com
58
Pandas rename column by position?
stackoverflow.com
58
Does "pass" mean OK or not OK?
english.stackexchange.com
54
What is an `int foo::*bar::*`?
stackoverflow.com
53
How to define array in multiple lines in Shell
stackoverflow.com
46
Difference between Python float and numpy float32
stackoverflow.com
46
typecasting Eigen::VectorXd to std::vector
stackoverflow.com
45
Difference between vector::begin() and std::begin()
stackoverflow.com
44
Do any States in the US give traffic tickets for 5 mph above the speed limit?
travel.stackexchange.com
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