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How does a language expand itself? [closed]
I am learning C++ and I've just started learning about some of Qt 's capabilities to code GUI programs. I asked myself the following question:
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C++ Dynamic Shared Library on Linux
...ain(int argc, char **argv)
{
/* on Linux, use "./myclass.so" */
void* handle = dlopen("myclass.so", RTLD_LAZY);
MyClass* (*create)();
void (*destroy)(MyClass*);
create = (MyClass* (*)())dlsym(handle, "create_object");
destroy = (void (*)(MyClass*))dlsym(handle, "destroy_object");
My...
Split Java String by New Line
...rea using a regex to split the String by \n However, this does not work and I also tried by \r\n|\r|n and many other combination of regexes.
Code:
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How do I use the nohup command without getting nohup.out?
I have a problem with the nohup command.
8 Answers
8
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Where does Oracle SQL Developer store connections?
...e Database 11g Express Edition. I created a test database in this edition, and I can connect to the database fine using Oracle SQL Developer, create tables, views etc. However, I'm having a hard time getting connected via my application. Where is the connection information? In what file? I wanted to...
How do I watch a file for changes?
...ons to this problem have been posted here as well.
– Anderson Green
Aug 13 '13 at 22:53
Is there a benchmark, if this ...
Objective-C for Windows
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Expanding on the two previous answers, if you just want Objective-C but not any of the Cocoa frameworks, then gcc will work on any platform. You can use it through Cygwin or get MinGW. However, if you want the Cocoa frameworks, ...
What do the makefile symbols $@ and $< mean?
What do the $@ and $< do exactly?
6 Answers
6
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How can I explicitly free memory in Python?
... I'm using python 3.6. Calling gc.collect() after loading a pandas dataframe from hdf5 (500k rows) reduced memory usage from 1.7GB to 500MB
– John
Jan 18 '18 at 20:30
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How should strace be used?
...rogram is interacting with the OS. It does this by monitoring system calls and signals.
Uses
Good for when you don't have source code or don't want to be bothered to really go through it.
Also, useful for your own code if you don't feel like opening up GDB, but are just interested in understanding ...