/* strcpy: copy t to s; array subscript version */ void strcpy(char *s, char *t) { int i; i = 0; while((s[i] = t[i]) != '\0') i ++; } For contrast, here is a version of strcpy with pointers: /* strcpy: copy t to s; pointer version 1 */ void strcpy(char *...
The strcpy(char_ptr, "This memory is located on the heap."); line uses that address when it copies the data from the second argument (the string literal) into the bytes starting at that address – and it continues doing so until it finds the nul-terminator at the end of that literal ...
strcpy terminates when the source string's null terminator is found. memcpy requires a size parameter be passed. In the case you presented the printf statement is halting after the null terminator is found for both character arrays, however you will find t and t have copied data in them as...
Is it Safe to strncpy Into a string That Doesn't Have Room for the Null Terminator? 1 Why does this implementation of 'strncpy' work? 0 Clarification on strcpy 4 On better understanding the strncpy() function behavior Hot Network Questions Does General Relativity predict Mercury's orbital ...
Now, if the string pointed to byswas in an array of characters just long enough to contain the string and the terminating NUL, thebehaviourwill beundefinedif we access the string past the null terminator, for example in char*str ="hello world";// orchararray[] ="hello world...
char u[1][50]; strcpy(u[0],"test"); strcpy(u[1],"test 2"); printf("%s \n",u[1]); But, in an int array you just need one []. Is it for the array index number or is it for the value? Regardless of the answer to that question … Why isn't there...
}intmain(intargc,constchar**argv){in_socket_tsock_r;structifreqifreq_i={0}, ifreq_c = {0}, ifreq_ip = {0};unsignedchar*packet =NULL;structether_header*eth=NULL;structifaddrs*ifaddr=NULL;unsignedintif_c =0, pckt_len =0;structether_addr*eth_daddr;ssize_tsend_len;constinton_f ...
Now, if the string pointed to by s was in an array of characters just long enough to contain the string and the terminating NUL, the behaviour will be undefined if we access the string past the null terminator, for example in char *str = "hello world"; // or char...