String concatenate strcat() Function In C

C strcat() Function

The strcat() function is used to concatenate one string(source) at the end of another string(destination). It does the following:

• Takes the destination String.
• Finds the NULL character.
• It copies the source string starting at the location of the NULL character of destination string.
• Appends a NULL character to the destination string when all characters of the source string are copied to the destination string.

Syntax:

  
 strcat (str1, str2);

Example 1:

Output:

 Welcome to aimtocode

Example 2:

Output:

 Enter first string: Welcome to

 Enter second string: aimtocode

 The concatenated string is: Welcome toaimtocode

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List of String function in C

Functions	Description
strcat( )	The strcat() function is used to concatenate one string(source) at the end of another string(destination).
strncat( )	Appends first n characters of a string at the end of another.
strcpy( )	Copies from str2 into str1
strncpy( )	Copies given number of characters of one string to another
strlen( )	Gives the length of str1
strcmp( )	Returns 0 if str1 is same as str2. Returns <0 if strl < str2. Returns >0 if str1 > str2
strcmpi( )	Same as strcmp() function. But, this function negotiates case. “A” and “a” are treated as same.
strchr( )	Returns pointer to first occurrence of char in str1
strrchr( )	last occurrence of given character in a string is found.
strstr( )	Returns pointer to first occurrence of str2 in str1
strrstr( )	Returns pointer to last occurrence of str2 in str1
strdup( )	Duplicates the string
strlwr( )	Converts string to lowercase
strupr( )	Converts string to uppercase
strrev( )	Reverses the given string
strset( )	Sets all character in a string to given character
strnset( )	It sets the portion of characters in a string to given character
strtok( )	Tokenizing given string using delimiter

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