Where are static variables stored in C and C++?
Where your statics go depends on whether they are zero-initialized. zero-initialized static data goes in .BSS (Block Started by Symbol), non-zero-initialized data goes in .DATA
compiler-construction
Could not load file or assembly … The parameter is incorrect
Looks like a corrupted assembly being referenced. Clear both: the \bin folder of your project the temp folder (should be C:\Users\your_username\AppData\Local\Temp\Temporary ASP.NET Files in windows 7) and see if the error still happens
Writing a compiler in its own language
This is called “bootstrapping”. You must first build a compiler (or interpreter) for your language in some other language (usually Java or C). Once that is done, you can write a new version of the compiler in language Foo. You use the first bootstrap compiler to compile the compiler, and then use this compiled compiler … Read more
How does Go compile so quickly?
Dependency analysis. The Go FAQ used to contain the following sentence: Go provides a model for software construction that makes dependency analysis easy and avoids much of the overhead of C-style include files and libraries. While the phrase is not in the FAQ anymore, this topic is elaborated upon in the talk Go at Google, … Read more
compilation warning: no rule to process file for architecture i386
Click on your project, and check that this file is not present in the tab Build Phases. Normally no header files should stay here. Clean and build it again, it should work!
What is the difference between LL and LR parsing?
At a high level, the difference between LL parsing and LR parsing is that LL parsers begin at the start symbol and try to apply productions to arrive at the target string, whereas LR parsers begin at the target string and try to arrive back at the start symbol. An LL parse is a left-to-right, … Read more
What’s the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__?
__func__ is an implicitly declared identifier that expands to a character array variable containing the function name when it is used inside of a function. It was added to C in C99. From C99 ยง6.4.2.2/1: The identifier __func__ is implicitly declared by the translator as if, immediately following the opening brace of each function definition, … Read more
Why does Java switch on contiguous ints appear to run faster with added cases?
As pointed out by the other answer, because the case values are contiguous (as opposed to sparse), the generated bytecode for your various tests uses a switch table (bytecode instruction tableswitch). However, once the JIT starts its job and compiles the bytecode into assembly, the tableswitch instruction does not always result in an array of … Read more
Compiled vs. Interpreted Languages
A compiled language is one where the program, once compiled, is expressed in the instructions of the target machine. For example, an addition “+” operation in your source code could be translated directly to the “ADD” instruction in machine code. An interpreted language is one where the instructions are not directly executed by the target … Read more
How does the compilation/linking process work?
The compilation of a C++ program involves three steps: Preprocessing: the preprocessor takes a C++ source code file and deals with the #includes, #defines and other preprocessor directives. The output of this step is a “pure” C++ file without pre-processor directives. Compilation: the compiler takes the pre-processor’s output and produces an object file from it. … Read more