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Sell me on const correctness
... with a common error that const correctness can protect you against:
void foo(const int DEFCON)
{
if (DEFCON = 1) //< FLAGGED AS COMPILER ERROR! WORLD SAVED!
{
fire_missiles();
}
}
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip.
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Make a URL-encoded POST request using `http.NewRequest(…)`
...m"
resource := "/user/"
data := url.Values{}
data.Set("name", "foo")
data.Set("surname", "bar")
u, _ := url.ParseRequestURI(apiUrl)
u.Path = resource
urlStr := u.String() // "https://api.com/user/"
client := &http.Client{}
r, _ := http.NewRequest(http.Method...
How do you get assembler output from C/C++ source in gcc?
...u like to write in NASM syntax though. objdump -drwC -Mintel | less or gcc foo.c -O1 -fverbose-asm -masm=intel -S -o- | less are useful. (See also How to remove “noise” from GCC/clang assembly output?). -masm=intel works with clang, too.
– Peter Cordes
Se...
How do I split a string with multiple separators in javascript?
...pattern doesn't match:
>>> bits = "Hello awesome, world!".split(/foo/)
["Hello awesome, world!"]
>>> bits[bits.length - 1]
"Hello awesome, world!"
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Unnecessary curly braces in C++?
...mple 2:
namespace N1 { class A { }; }
namespace N2 { class A { }; }
void foo() {
{
using namespace N1;
A a; // N1::A.
// ...
}
{
using namespace N2;
A a; // N2::A.
// ...
}
}
Practical situations when this is useful are rare and ...
Most efficient way to concatenate strings?
... This is not true for single line concatenation. Say you do myString = "foo" + var1 + "bar" + var2 + "hello" + var3 + "world", the compiler automatically turns that into a string.concat call, which is as efficient as it gets. This answer is incorrect, there are plenty of better answers to choose...
What is the correct way to get a subarray in Scala?
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You can call the slice method:
scala> Array("foo", "hoo", "goo", "ioo", "joo").slice(1, 4)
res6: Array[java.lang.String] = Array(hoo, goo, ioo)
It works like in python.
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How to “comment-out” (add comment) in a batch/cmd?
...f
REM To skip the following Python commands, put "REM" before them:
python foo.py
python bar.py
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Anything wrong with NOT signing a .NET assembly?
... accident). In example, if you create a program that refers to an assembly Foo.dll, version 1.0, someone can create the an assembly, with the same version, and replace yours, when you sign your library, it won't be possible (at least I don't think it's easily possible).
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