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2 nishi 1 
/* $Id: util.c 2 2024-09-11 09:16:23Z nishi $ */
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#include "kn_util.h"
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#include <string.h>
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#include <stdlib.h>
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char* kn_strcat(const char* a, const char* b){
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	char* str = malloc(strlen(a) + strlen(b) + 1);
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	memcpy(str, a, strlen(a));
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	memcpy(str + strlen(a), b, strlen(b));
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	str[strlen(a) + strlen(b)] = 0;
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	return str;
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}
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char* kn_strdup(const char* a){
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	return kn_strcat(a, "");
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}