38 lines
592 B
C
38 lines
592 B
C
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/*
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* concat.c
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*
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* Created on: 6 июл. 2022 г.
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* Author: alexander
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*/
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#include "concat.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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char* concat(char *s1, char *s2)
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{
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size_t len1 = s1 ? strlen(s1) : 0;
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size_t len2 = s2 ? strlen(s2) : 0;
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char *result = malloc(len1 + len2 + 1);
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if (!result)
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{
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fprintf(stderr, "malloc() failed: insufficient memory!\n");
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return NULL;
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}
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if (s1)
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{
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memcpy(result, s1, len1);
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}
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if (s2)
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{
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memcpy(result + len1, s2, len2 + 1);
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}
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return result;
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}
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