[2010-01] I guess I was trying string contactenation in C

joinStrings.c

//&>/dev/null;x="${0%.*}";[ ! "$x" -ot "$0" ]||(rm -f "$x";cc -o "$x" "$0")&&"$x" $*;exit

#import <stdio.h>
#import <stdlib.h>

char* joinStrings(char** strings, int numStrings, char* seperator) {
	// Handle empty case which would cause problems.
	if (numStrings == 0)
		return "";
	
	// Determine the length of the seperator string.
	int seperatorLength = 0;
	while (seperator[seperatorLength])
		++seperatorLength;
	
	// Start with 1 char for the null terminator...
	int finalSize = 1;
	
	// ...add the length of the first string...
	int characterIndex;
	for (characterIndex = 0; strings[0][characterIndex]; ++characterIndex)
		++finalSize;
	
	int stringIndex;
	
	// ...add the lengths of subsequent strings and the seperator.
	for (stringIndex = 1; stringIndex < numStrings; ++stringIndex) {
		finalSize += seperatorLength;
		
		for (characterIndex = 0; strings[stringIndex][characterIndex]; ++characterIndex)
			++finalSize;
	}
	
	// Allocate memory our new string...
	char* newString = (char*) malloc(sizeof(char) * finalSize);
	int finalIndex = 0;
	
	// ...copy the first string in....
	for (characterIndex = 0; strings[0][characterIndex]; ++characterIndex)
		newString[finalIndex++] = strings[0][characterIndex];
	
	// ...copy the subsequent strings and seperators.
	for (stringIndex = 1; stringIndex < numStrings; ++stringIndex) {
		for (characterIndex = 0; seperator[characterIndex]; ++characterIndex)
			newString[finalIndex++] = seperator[characterIndex];
		
		for (characterIndex = 0; strings[stringIndex][characterIndex]; ++characterIndex)
			newString[finalIndex++] = strings[stringIndex][characterIndex];
	}
	
	// Terminate our new string...
	newString[finalIndex] = (char) 0;
	
	// ...and return it.
	return newString;
}

#define numStrings 30

int main(int argc, char* argv[]) {
	char* strings[numStrings] = {
		"Alpha", "Beta", "Gamma", "Delta", "Epsilon", "Zeta", "Eta",
		"Theta", "Iota", "Kappa", "Lambda", "Mu", "Nu", "Xi", "Omicron",
		"Pi", "Rho", "Sigma", "Tau", "Upsilon", "Phi", "Chi", "Omega",
		"Digamma", "Stigma", "Heta", "San", "Sho", "Qoppa", "Sampi"
	};
	
	char* seperator = ", ";
	
	int n;
	
	for (n = 1; n <= numStrings; ++n)
		printf("%s\n", joinStrings(strings, n, seperator));
	
	return 0;
}