#compilers

There is still some virtual private servers that rely on gcc 6.x series and Ubuntu 18.04 as gcc 7.x series is known to cause issues when running inside qemu based virtual machine on some Intel Xeon processors.

"How do I swap two variables without using a temporary variable?" is one of the dumber programming questions. Please tell me you don't use this in interviews. There's the sensible way, the way

In a previous article I showed that the Swift compiler checks for overflow after every mathematical operation, like this assembly fragment: imul rdi, r8 jo .LBB1_10 That's part of the language; in C or

Many programmers realize they can replace division or multiplication by a power of two with a bit-shift operation that is (usually) more efficient. But what if we want to divide by a constant other than

Horner's Method Suppose you want to calculate the value of the degree-3 polynomial ax^3 + bx^2 + cx + d for a particular x. The really inefficient way is to compute ax^3, then bx^2, then cx, then d, and

godbolt.org is a tool for exploring compiler behavior and output. It offers the ability to compile C++ and other languages with a variety of different compiler versions and machine targets, and view the

What's up good folks, it me @riyasaat the ultimate techno freak is back again with my very 1st blog of the series call "Learn C Programming From the Scratch Series". In this blog I'll be

The last few years, while trying to squeeze any performance possible in CPU mining, I've tried all sorts of "peripheral" things (=changing 0 lines of code) in order to attain the best possible results.