C

c concatenate strings

char str[80];
strcpy(str, "these ");
strcat(str, "strings ");
strcat(str, "are ");
strcat(str, "concatenated.");

c concaternate string

#include <stdio.h>
#include <string.h>

int main() {
  /*
  strcat(char * destination, const char *source)
  attaches source to destination
  */
  
  char buffer[100] = "Hello ";
  strcat(buffer, "World!");
  printf("Buffer: %s
", buffer);
  return 0;
}

objective c strings concatenate

result = [result stringByAppendingString:@"This is "];

c concatenate and allocate string

// null protected
char* strconcat(char *str1, const char *str2)
{
	char *str = NULL;
    size_t len1 = 0;
    size_t len2 = 0;

	if (str1)
    	len1 = strlen(str1);
    if (str2)
    	len2 = strlen(str2);
    if (!(str = calloc(sizeof(char), (len1 + len2 + 1))))
        return NULL;
    if (str1)
        memcpy(str, str1, len1);
    if (str2)
        memcpy(str + len1, str2, len2);
    return (str);
}

objective c strings concatenate

- (NSString *)strCat: (NSString *)one: (NSString *)two
{
    NSString *myString;
    myString = [NSString stringWithFormat:@"%@%@", one , two];
    return myString;
}

concate string in c

#define TESTING opa