#include <stdio.h>
#define BUFF_SIZE (1024)
char *mystrncat(char *dest, const char *src, unsigned int len)
{
char *p = dest;
int index;
while ('\0' != *p)
p ++;
for (index = 0; '\0' != src[index] && index < len; index ++)
p[index] = src[index];
p[index] = '\0';
return dest;
}
int main(int argc, const char *argv[])
{
char *str = "1234567890";
char buff[BUFF_SIZE] = "HELLO";
mystrncat(buff, str, 5);
puts(buff);
return 0;
}
C library function strncat implementation
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Origin blog.csdn.net/zxy131072/article/details/108535243
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