🤓

John radiofreejohn

🤓

Opinions not my own, they're your employer's.

radiofreejohn / range.c

Created March 23, 2011 04:27

generate a range of integer values range(start,end) - may be neg to pos and vice versa

	#include <stdio.h>
	#include <stdlib.h>
	#include <math.h>

	int *range(int, int);

	int *range(int start, int end)
	{
	int size = (int) fabs(end-start)+1;
	int values = malloc(size sizeof(int));

radiofreejohn / function-pointers.c

Created March 18, 2011 23:51

experimenting with function pointers, what a mess...

	#include <stdio.h>

	void printnnl(char *);
	void printnl(char *);
	void printgeneric(void (printfunc)(char ), char *str);

	void printgeneric(void (printfunc)(char ), char *str)
	{
	(*printfunc)(str);
	}

radiofreejohn / kr5-10.c

Created March 18, 2011 08:12

K&R Exercise 5-10, reverse polish notation evaluator, this is rough

radiofreejohn / kr5-5-strncat.c

Created March 12, 2011 23:31

K&R Exercise 5-5, strncat

	#include <stdio.h>

	void strnfeline(char s, const char t, int n);

	void strnfeline(char s, const char t, int n)
	{
	//this is bad if s is not terminated
	while(*++s)
	;
	while(n--)

radiofreejohn / kr5-4.c

Created March 12, 2011 22:56

K&R exercise 5-4, strend, find string at end of another string

	#include <stdio.h>

	int strend(char s, char t);

	int strend(char s, char t)
	{
	//save pointer to the first element of t
	char *start = t;
	//move to the end of each string
	while (*++s)

radiofreejohn / kr5-3.c

Created March 12, 2011 05:33

K&R exercise 5-3, strcat

	#include <stdio.h>

	void strcatsnot(char s, const char *t);

	void strcatsnot(char s, const char *t)
	{
	while (*++s)
	;
	while (s++ = t++)
	;

radiofreejohn / rita.c

Created March 11, 2011 07:50

K&R exercise 4-12, recursive itoa attempt

	#include <stdio.h>
	#include <limits.h>

	// K&R 4-12
	// char *rita seems OK too but I don't want to return a char to the original caller
	// not sure if this is bad practice.
	// will overflow if integer is longer than the target array (which shouldn't happen)

	void rita(char target, long source)
	{

	#include <stdio.h>

	void strcatsnot(char s, const char *t);

	void strcatsnot(char s, const char *t)
	{
	while (*++s)
	;
	while (s++ = t++)
	;