binaryfiles

问题 Please show me the best/fast methods for: 1) Loading very small binary files into memory. For example icons; 2) Loading/reading very big binary files of size 512Mb+. 3) Your common choice when you do not want to think about size/speed but must do only thing: read all bytes into memory? Thank you!!! P.S. Sorry for maybe trivial question. Please do not close it;) P.S.2. Mirror of analog question for Java; 回答1: 1: For very small files File.ReadAllBytes will be fine. 2: For very big files and

问题 I am trying to write a program to read a binary file from memory execute it and exit but the OS doesn't seem to let me execute it from memory, the entire point of this exercise is to load a binary file with no header into memory. This is my code for the binary file: push eax mov eax,3 mov edi,eax sub eax,edi pop eax leave ret And my loader is as follows: int main(int argc, char **argv){ void (*ptr)(void); FILE *fo = fopen(argv[1],"r"); int l = fseek(fo,0,SEEK_END); fread((void*)ptr,l*sizeof

问题 This question was out there for a while and I thought I should offer some bonus points if I can get it to work. What did I do… Recently at work, I wrote a parser that would convert a binary file in a readable format. Binary file isn't an Ascii file with 10101010 characters. It has been encoded in binary. So if I do a cat on the file, I get the following - [jaypal~/Temp/GTP]$ cat T20111017153052.NEW ==?sGTP?ղ?N????W????&Xx1?T?&Xx1?; ?d@#e? ?0H????????|?X?@@(?ղ??VtPOC01 cceE??k@9??W傇??R?K?i2??d

问题 I'm trying to read a binary file into R but this file has rows of data written in binary code. So it doesnt have one full set of data belonging to one column instead it is stored as rows of data. Here's what my data looks like: Bytes 1-4: int ID Byte 5: char response character Bytes 6-9: int Resp Dollars Byte 10: char Type char anyone can help me figure out how to read this file into R? Hi Guys, Here's the code ive tried so far. I tried a couple of things with limited success. Unfortunately,

问题 I'm trying to read a binary file into R but this file has rows of data written in binary code. So it doesnt have one full set of data belonging to one column instead it is stored as rows of data. Here's what my data looks like: Bytes 1-4: int ID Byte 5: char response character Bytes 6-9: int Resp Dollars Byte 10: char Type char anyone can help me figure out how to read this file into R? Hi Guys, Here's the code ive tried so far. I tried a couple of things with limited success. Unfortunately,

问题 My program depends on libcurl.so.3 , but in RHEL6 there is no symbolic link libcurl.so.3 ⇾ libcurl.so.4 (my program can run smoothly when I create this link). However, there is symbolic link libcurl.so ⇾ libcurl.so.4 . I would like to modify the SONAME embedded in libcurl.so.3.0.0.0 file from libcurl.so.3 to libcurl.so so that I could run my program on RHEL 6 without creating a symbolic link. My solution could not be optimal but I think learning how to modify the binary directly is valuable.

问题 My program depends on libcurl.so.3 , but in RHEL6 there is no symbolic link libcurl.so.3 ⇾ libcurl.so.4 (my program can run smoothly when I create this link). However, there is symbolic link libcurl.so ⇾ libcurl.so.4 . I would like to modify the SONAME embedded in libcurl.so.3.0.0.0 file from libcurl.so.3 to libcurl.so so that I could run my program on RHEL 6 without creating a symbolic link. My solution could not be optimal but I think learning how to modify the binary directly is valuable.

问题 How do you edit a Single-Record-type Binary Mainframe file in the RecordEditor using Cobol Copybook on a Windows or Linux PC. Note: This is an attempt to split a very broad question into a series of simpler Question and Answers. 回答1: To Edit a File in the RecordEditor with a Cobol Copybook you must first load the copybook and then edit the file Loading the Cobol Copybook into the RecordEditor Select Record Layouts >>> Load Cobol Copybook menu options On the Cobol Load Screen enter the Cobol

问题 In my experiments with the following code snippet, I did not find any particular difference whether i created the streams with/without the ios:binary mode: int main() { ifstream ostr("Main.cpp", ios::in | ios::binary | ios::ate); if (ostr.is_open()) { int size = ostr.tellg(); char * memBlock = new char[size + 1]; ostr.seekg(0, ios::beg); ostr.read(memBlock, size); memBlock[size] = '\0'; ofstream file("trip.cpp", ios::out | ios::binary); file.write(memBlock, size); ostr.close(); } } Here I am

问题 Informally, most of us understand that there are 'binary' files (object files, images, movies, executables, proprietary document formats, etc) and 'text' files (source code, XML files, HTML files, email, etc). In general, you need to know the contents of a file to be able to do anything useful with it, and form that point of view if the encoding is 'binary' or 'text', it doesn't really matter. And of course files just store bytes of data so they are all 'binary' and 'text' doesn't mean