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avoid infinite loop in search

2017-06-09, Andrey Skvortsov

a63bb4025852

avoid infinite loop in search

for example following regexp '()' creates infinite list of result

/* Beremiz' header file for use by extensions */

#include "iec_types.h"

#define LOG_LEVELS 4

#define LOG_CRITICAL 0

#define LOG_WARNING 1

#define LOG_INFO 2

#define LOG_DEBUG 3

extern unsigned long long common_ticktime__;

int LogMessage(uint8_t level, char* buf, uint32_t size);

long AtomicCompareExchange(long* atomicvar,long compared, long exchange);