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Makefile, header dependencies
...re using a GNU compiler, the compiler can assemble a list of dependencies for you. Makefile fragment:
depend: .depend
.depend: $(SRCS)
rm -f ./.depend
$(CC) $(CFLAGS) -MM $^ -MF ./.depend;
include .depend
or
depend: .depend
.depend: $(SRCS)
rm -f ./.depend
$(C...
How can I export the schema of a database in PostgreSQL?
My computer broke down but fortunately I backed up
the folder C:\Program Files\PostgreSQL.
8 Answers
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How to read a line from the console in C?
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You need dynamic memory management, and use the fgets function to read your line. However, there seems to be no way to see how many characters it read. So you use fgetc:
char * getline(void) {
char * line = malloc(100), * linep = line;
...
Java 8: performance of Streams vs Collections
...w to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections.
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Reading a resource file from within jar
... the resource as a File just ask the ClassLoader to return an InputStream for the resource instead via getResourceAsStream:
InputStream in = getClass().getResourceAsStream("/file.txt");
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
As long as the file.txt resource is ava...
Large Numbers in Java
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You can use the BigInteger class for integers and BigDecimal for numbers with decimal digits. Both classes are defined in java.math package.
Example:
BigInteger reallyBig = new BigInteger("1234567890123456890");
BigInteger notSoBig = new BigInteger("2743561...
Setting PayPal return URL and making it auto return?
...ou have to enable auto return in your PayPal account, otherwise it will ignore the return field.
From the documentation (updated to reflect new layout Jan 2019):
Auto Return is turned off by default.
To turn on Auto Return:
Log in to your PayPal account at https://www.paypal.com or ht...
Entity Framework 4 / POCO - Where to start? [closed]
I've been programming for a while and have used LINQ-To-SQL and LINQ-To-Entities before (although when using entities it has been on a Entity/Table 1-1 relationship - ie not much different than L2SQL)
...
Send attachments with PHP Mail()?
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I agree with @MihaiIorga in the comments – use the PHPMailer script. You sound like you're rejecting it because you want the easier option. Trust me, PHPMailer is the easier option by a very large margin compared to trying to do it yourself wi...
How to delete from a text file, all lines that contain a specific string?
...'/pattern to match/d' ./infile
To directly modify the file – does not work with BSD sed:
sed -i '/pattern to match/d' ./infile
Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed:
sed -i '' '/pattern to match/d' ./infile
To directly modify the file (and create a bac...