Syntax for strcmp
function
Syntax: int strcmp (const char* str1, const char* str2);
The strcmp()
function is used to compare two strings str1
and str2
. If two strings are the same, strcmp()
returns 0, otherwise, it returns a non-zero value. This function compares strings character by character using the ASCII value of the characters.
Standard Library for Input/Output Operations
Which standard C library is used for input output operations?
Most of the C file input/output functions are defined in (or in the C++ header cstdio
, which contains the standard C functionality but in the std namespace).
Setting Characters in a String
Which of the following function sets first n characters of a string to a given character?
b. strnset()
c. strset()
d. strcset()
Answer: strnset()
Strcasestr Return Value
What does strcasestr
return?
Upon successful completion, strcasestr()
shall return a pointer to the located string or a null pointer if the string is not found. If s2
points to a string with zero length, the function shall return s1
.
The strlwr()
Function
What is strlwr
in C?
The strlwr()
function in C is a built-in function used to convert a given string into lowercase.
Syntax: char *strlwr(char *str);
Parameter: str
– Represents the given string that needs to be converted into lowercase.
Case Sensitivity in strchr
Is strchr
case sensitive?
The strchr()
function searches for the first occurrence of a string inside another string and is case-sensitive. This function is binary-safe.
PHP Function strstr
What is strstr
in PHP?
The strstr()
function is a built-in function in PHP that searches for the first occurrence of a string inside another string. It displays the portion of the latter starting from the first occurrence of the former in the latter (before if specified). This function is case-sensitive.
Handling Not Found Strings in strstr
Riguardo a questo, what does strstr
return if not found?
Upon successful completion, strstr()
shall return a pointer to the located string or a null pointer if the string is not found.