What is the string concatenation function in C language?

The string connection function in C language is: strcat(). This function will append the specified string to the end of the destination string, so you must ensure that the destination string has enough memory space to accommodate the two strings, otherwise an overflow error will occur.

The string concatenation function in C language is strcat(), which is used to concatenate (splice) two strings.

(Recommended tutorial: C Language Tutorial)

Function syntax:

char*strcat(char* strDestination, const char* strSource);

Parameter description:

• strDestination: Destination string

• strSource: Source string

strcat() function appends the string pointed to by strSource to the string pointed by strDestination. The end of the string pointed to, so you must ensure that strDestination has enough memory space to accommodate the two strings, otherwise an overflow error will occur.

Note: The \0 at the end of strDestination will be overwritten, the \0 at the end of strSource will be copied together, and the final string will only have one \0.

Return value: Pointer to strDestination.

Code:

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