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Is it possible to make relative link to image in a markdown file in a gist?
...to stick with the long, static URL:
https://gist.github.com/mattborn/c346c8689a5eaf86e823
However, relative URLs to some files work:
http://bl.ocks.org/mattborn/c346c8689a5eaf86e823
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impro...
What is the difference between char s[] and char *s?
...to modify the contents of the array, the behavior is undefined.
GCC 4.8 x86-64 ELF implementation
Program:
#include <stdio.h>
int main(void) {
char *s = "abc";
printf("%s\n", s);
return 0;
}
Compile and decompile:
gcc -ggdb -std=c99 -c main.c
objdump -Sr main.o
Output con...
A fast method to round a double to a 32-bit int explained
...
This kind of "trick" comes from older x86 processors, using the 8087 intructions/interface for floating point. On these machines, there's an instruction for converting floating point to integer "fist", but it uses the current fp rounding mode. Unfortunately, the...
C# 'is' operator performance
...interesting to see that x64 created faster but executed as/is slower than x86
x64 Release Mode:
Stopwatch:
As: 561ms
Is: 597ms
Base property: 539ms
Base field: 555ms
Base RO field: 552ms
Virtual GetEnumType() test: 556ms
Virtual IsB() test: 588ms
Create Time : 10416ms
UtcNow:
As: 499ms...
Is there any advantage of using map over unordered_map in case of trivial keys?
... a time_hash_map program to time them. For example, with gcc 4.4.2 on an x86_64 Linux system
$ ./time_hash_map
TR1 UNORDERED_MAP (4 byte objects, 10000000 iterations):
map_grow 126.1 ns (27427396 hashes, 40000000 copies) 290.9 MB
map_predict/grow 67.4 ns (10000000 hashes, 400...
Start / Stop a Windows Service from a non-Administrator user account
...account to manage the BST
services.
(subinacl.exe is in C:\Program Files (x86)\Windows Resource Kits\Tools\).
cd C:\Program Files (x86)\Windows Resource Kits\Tools\
subinacl /SERVICE \\MachineName\bst /GRANT=domainname.com\username=F or
subinacl /SERVICE \\MachineName\bst /GRANT=username=F
Logout an...
How does the Java 'for each' loop work?
...st B: 207,050,523 nanoseconds
B faster by 81,902,972 nanoseconds (27.844689860906513% faster)
[C:\java_code\]java TimeIteratorVsIndexIntArray 1000000
Test A: 375,373,765 nanoseconds
Test B: 283,813,875 nanoseconds
B faster by 91,559,890 nanoseconds (23.891659337194227% faster)
[C:\java_code\]java ...
乐高机器人®组件 · App Inventor 2 中文网
...Enabled 超出范围事件启用
指定当光线水平超过TopOfRange时是否应该触发AboveRange事件。
BelowRangeEventEnabled 低于范围事件启用
指定当光线水平低于BottomOfRange时是否应该触发BelowRange事件。
BluetoothClient 蓝牙客户端
指定应该用于...
When and why will a compiler initialise memory to 0xCD, 0xDD, etc. on malloc/free/new/delete?
...
One nice property about the fill value 0xCCCCCCCC is that in x86 assembly, the opcode 0xCC is the int3 opcode, which is the software breakpoint interrupt. So, if you ever try to execute code in uninitialized memory that's been filled with that fill value, you'll immediately hit a breakp...
How to resolve merge conflicts in Git?
...swered Aug 4 '10 at 17:04
coolaj86coolaj86
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