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Bookmark or Share- Hex Encode and Decode in C | John's Blog - nachtimwald.comIntroduction A very common task when working with binary data in C is, converting it to and from Hex. It’s unfortunate that C doesn’t provide a standard function that can take care of this for us. However, it’s pretty easy to implement a set of functions to handle it. Hex encoding is always twice the size of binary. Since hex is base 16 we can take any unsigned char value 0-255 and ...
- Calling Java From C | John's Blog - nachtimwald.comA C application creates a JVM using JNI and runs a Java things. There is a Java application in a jar that uses the Java class. The Java class uses a set of JNI C functions to make a nice Java object. A JNI wrapper is used to expose a C object to Java. There is a object written in C and compiled as a library.
- Base64 Encode and Decode in C | John's Blog - nachtimwald.comIntroduction A very popular way to encode binary data is Base64. The basis of this is an encoding table. As you might expect, there are 64 total characters that go into the tale. There are multiple implementations of base64 with slight differences. They are all the same except for the last two characters and line ending requirements. The first 62 characters are always ...
- Thread Pool in C | John's Blog - nachtimwald.comA, good, thread pool keeps a set number of threads running and waiting to do something. The pool could be designed to scale up with the amount of work you need to do but I prefer specifying a fixed number of threads. A good way to choose this number is to use the number of cores/processors on the system + 1. At the heart of a thread pool are ...
- Generic List in C | John's Blog - nachtimwald.comThe absolute worst way to handle sorting on insert is insertion sort and the best way is using a variation of binary search. While C has a standard bsearch function which does binary search it only finds a matching element. This is fine if we’re looking for something but we need to find where something should go in the array.
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