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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "StringOperations.h"
static unsigned long djbHash(const char *Str) {
unsigned long Hash = 5381;
for (const char *P = Str; *P; P++) {
// Hash * 33 + c
Hash = ((Hash << 5) + Hash) + *P;
}
return Hash;
}
// This doesn't actually return a hex string of |hash|, but it
// does... something. It doesn't really matter what.
static void hashToString(unsigned long Hash, char *Buffer) {
const char Table[] = {"0123456789abcdef"};
char *P = Buffer;
while (Hash) {
*P = Table[Hash & 0xf];
Hash >>= 4;
P++;
}
*P = 0;
}
std::string hash(const std::string &Str) {
static char HashStr[41];
unsigned long H = djbHash(Str.c_str());
hashToString(H, HashStr);
return std::string(HashStr);
}
std::string toString(int N) { return stringFormat("%d", N); }