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# Emil HernvallEmilHernvall

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Last active Aug 29, 2015
View proof.md

### Keybase proof

I hereby claim:

• I am EmilHernvall on github.
• I have a public key whose fingerprint is 5B7E 106F 7A1F B3B2 8236 78E1 398A 0566 9E87 493F

To claim this, I am signing this object:

Created May 3, 2011
Simple experiment with parsing wav-files
View analyzewav.c
 #include #include #define FormatID 'fmt ' /* chunkID for Format Chunk. NOTE: There is a space at the end of this ID. */ struct GlobalFormat { unsigned int id; unsigned int size; unsigned int type; };
Created May 3, 2011
Simple mathematical approach for summing the digits in a number
View digitsum.c
 #include #include /* The algorithm is: d_i = (c mod 10^(i+1)) / 10^i S = sum_{i=0}^{floor(log_10(c))+1} d_i = sum_{i=0}^{floor(log_10(c))+1} (c mod 10^(i+1)) / 10^i Where c is the number in question, d_i is the digit at position i counted from the least significant digit and S is the sum of the digits in the number.
Created May 3, 2011
Experiment with interpolating strings
View expand.c
 #include #include int expand(char *target, int size, char *format, char **params, int count) { int i, placeholders = 0; for (i = 0; i < strlen(format); i++) { if (format[i] == '?') { placeholders++; }
Created May 3, 2011
A somewhat misguided c-implementation of the common split()-function present in most languages
View explode.c
 #include #include #include int explode(char*** ret, char* instr, char* delim) { char* str = strdup(instr); char** arr = (char**)malloc(sizeof(char*) * (strlen(instr)+1)); int count = 0;
Created May 3, 2011
setuid to another user and give group members write permissionto files with certain extensions. No idea why I ever needed this.
View perm.c
 // perm.c - setuid to another user and give group members write permission // to files with certain extensions. // Emil Hernvall, 2008-04-14 #include #include #include #include #include #include
Created May 3, 2011
Translation of someone elses code for a more sophisticated prime sieve
View genprimes2.c
 #include #include #include int main(int argc, char** argv) { if (argc != 2) { printf("usage: genprimes2 num\n"); return 0; }
Created May 3, 2011
Some small python functions for converting between binary and denary
View binutils.py
 def Denary2Binary(n): '''convert denary integer n to binary string bStr''' bStr = '' if n < 0: raise ValueError, "must be a positive integer" if n == 0: return '0' while n > 0: bStr = str(n % 2) + bStr n = n >> 1 return bStr
Created May 3, 2011
A tiny java-program for language training
View WordTrainer.java
 /** * WordTrainer 2008-12-02 * Simple language training in Java. This program accepts text-files * containing where each line contains two words in two diffrent languages * separated by a comma (,). The first line follows the same format but * specifies the language. * * Sample gloss-file: * Engelska,Svenska * cloud,moln
Created May 3, 2011
Find the most popular words in a file - Linked list and merge sort based version
View wordcount.c
 // this has hacky support for swedish characters in utf8. // i do not recommend this solution for any serious purposes. :) #include #include #include #include // convert a twobyte utf8 character into a single integer #define MB(str) (((str[0] & 0xFF) << 8) | (str[1] & 0xFF))
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