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  1.     #include <stdio.h>
  2.     #include <stdlib.h> //for malloc
  3.     #include <string.h>
  4.  
  5.     int *my_strcat(const char* const str1, const char *const str2)
  6.     {
  7.     	int s1, s2, s3, i=0;
  8.     	char *a;
  9.     	s1 = strlen(str1);
  10.     	s2 = strlen(str2);
  11.     	s3 = s1+s2+1;
  12.     	a = malloc(s3);
  13.     	for(i = 0; i < s1; i++) {
  14.     		a[i] = str1[i];
  15.     	}
  16.     	for(i = 0; i < s2; i++) {
  17.     		a[i+s1] = str2[i];
  18.     	}
  19.     	a[s3] = '\0';  
  20.  
  21.     	return a;
  22.     }
  23.  
  24.  
  25.     int main(void)
  26.     {
  27.     	printf("%s\n",my_strcat("Hello","world!"));
  28.     	return 0;    
  29.     }
  30.  
Success #stdin #stdout 0s 2300KB
comments (?)
stdin
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Standard input is empty
stdout
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Helloworld!
https://ideone.com/7j6URX
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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