Explore topic-wise MCQs in Strings.

Which among the given options is the right explanation for the statement size_t strcspn(c, s)?

The mem functions are meant for _______

Which code from the given option return pointer to last occurrence of c in ch or NULL if not present?

What is the use of function char *strchr(ch, c)?

There are two groups of string functions defined in the header . What are they?

Which among the given options compares atmost n characters of string ch to string s?

What will be the output of the following C code?

 const char str1[]="ABCDEF1234567"; const char str2[] = "269"; len = strcspn(str1, str2); printf("First matching character is at %d n", len + 1);

The strpbrk() function is used to return a pointer to the character, or a null pointer if no character from s2 occurs in s1.

which of the following function returns a pointer to the located string or a null pointer if string is not found.

Which of the given function is used to return a pointer to the located character?

Is there any function declared as strstr()?

The______function returns a pointer to the first character of a token.

The C library function _________ breaks string s1 into a series of tokens using the delimiter s2.

What is the return value of strxfrm()?

What does the following function returns void *memmove(void *s1,const void s2, size_t n);?

void *memcpy(void *dest, const void *src, size_t n) What does the following code do?

What will be the output of the following C code?

 char str1[15]; char str2[15]; int mat; strcpy(str1, "abcdef"); strcpy(str2, "ABCDEF"); mat= strncmp(str1, str2, 4); if(mat< 0> 0) printf("str2 is is not greater than str1"); else printf("both are equal");

Use_______to determine the null-terminated message string that corresponds to the error code errcode.

What will be the output of the following C code?

 void *memset(void *c, int c, size-t n) unsigned char ch = c; unsigned char *su; for (su = s; 0 < n> *su = ch;

What will be the output of the following C code?

 const char str1[10]="Helloworld"; const char str2[10] = "world"; char *mat; mat = strstr(str1, str2); printf("The substring is:%s n", mat);

This function offers the quickest way to determine whether two character sequences of the same known length match character for the character up to and including any null character in both.

What will the following C code do?

 char * strrchr(const char *s, int c ) char ch = c; char *sc; for(sc = NULL; ; ++s) if(*s == ch) SC = 9; i f (*s ==' O' ) return (( char *) s);

The function strsp() is the complement of strcspn().

What will be returned in the following C code?

 size- t strlen(const char *s) const char *sc; for(sc = s; *sc!= '   O ' ; ++sc) return(sc - s) ;

The______ function returns the number of characters that are present before the terminating null character.

String operation such as strcat(s, t), strcmp(s, t), strcpy(s, t) and strlen(s) heavily rely upon.

What type of return-type used in String operations?

What will be the output of the following C code?

 #include  int main() { char str[10] = "hello"; char *str1 = "world"; strncat(str, str1, 9); printf("%s", str); }

Strcat() function adds null character.

What will be the output of the following C code?

 #include  int main() { char str[11] = "hello"; char *str1 = "world"; strcat(str, str1); printf("%s %d", str, str[10]); }

What will the given C code do?

 int memcmp(const void *str1, const void *str2, size_t n)

What will be the output of the following C code?

 #include  int main() { char *str = "hello, world n"; printf("%d", strlen(str)); }

What will be the output of the following C code?

 #include  int main() { char *str = "hello, world"; char str1[15] = "hello wo 9"; strcpy(str, str1); printf("%s", str1); }

What will be the output of the following C code?

 #include  #include  int main() { char *str = "hello, world"; char str1[9]; strncpy(str1, str, 9); printf("%s %d", str1, strlen(str1)); }

What will be the output of the following C code?

 #include  int main() { char *str = "hello, world"; char *str1 = "hello, world"; if (strcmp(str, str1)) printf("equal"); else printf("unequal"); }

What will be the output of the following C code?

 #include  int main() { char str[10] = "hello"; char *p = strrchr(str, 'l'); printf("%c n", *(++p)); }

If the two strings are identical, then strcmp() function returns

Which of the following function compares 2 strings with case-insensitively?

What will be the value of var for the following C statement?

 var = strcmp("Hello", "World");

Which pre-defined function returns a pointer to the last occurence of a character in a string?

What will be the output of the program ?

 #include int main() { static char s[25] = "The cocaine man"; int i=0; char ch; ch = s[++i]; printf("%c", ch); ch = s[i++]; printf("%c", ch); ch = i++[s]; printf("%c", ch); ch = ++i[s]; printf("%c", ch); return 0; }

What will be the output of the program ?

 #include #include int main() { static char s[] = "Hello!"; printf("%d n", *(s+strlen(s))); return 0; }

What will be the output of the program ?

 #include #include int main() { static char str1[] = "dills"; static char str2[20]; static char str3[] = "Daffo"; int i; i = strcmp(strcat(str3, strcpy(str2, str1)), "Daffodills"); printf("%d n", i); return 0; }