I have written a variant class, which will be used as the main type in a dynamic language, that will ultimately allow 256 different types of value (header is an unsigned byte, only 20 are actually use
from wikipedia: Most PHP accelerators work by caching the compiled bytecode of PHP scripts to avoid the overhead of parsing and compiling source code on
I have a question regarding the conversion of regular expressions to no开发者_Go百科n-deterministic finite state automata:
开发者_如何转开发Are regular expressions used directly in compilers to identify tokens? Yes. Many compilers use a generated scanner whose token rules are defined as REs to a DFA. Flex(1) is a prominen
I have started writing a very simple class, and all kinds of class methods seem to give me problems. I hope the problem is me and the solution is simple.
Given the program: import Debug.Trace main = print $ trace \"hit\" 1 + trace \"hit\" 1 If I compile with ghc -O (7.0.1 or higher) I get the output:
This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time,or an extraordinarily narrow situation that is not generally applic
I have a function, createFile that uses fchmod: int createFile(char *pFileName) { int ret; if ((ret = open(pFileName, O_RDWR | O_CREAT | O_TRUNC)) < 0)
In order to force a function to not be inlined that was consuming 46% of the runtime, I used __attribute__((no开发者_如何学JAVAinline)) on the it and compiled the code with gcc -Wall -Winline -O2(thes
Is there any way to check if开发者_Go百科 an object file(.o file) is PIC-enabled?Not sure how portable this is, but for x86 and x86_64, ELF format, you can use readelf -r and look at the relocation ty
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