strcpy

 

C

Language

Standard Library

Type support

Dynamic memory management

Error handling

Program utilities

Date and time utilities

Strings library

Algorithms

Numerics

Input/output support

Localization support

Thread support (C11)

Atomic operations (C11)

 

Strings library

Byte strings

Multibyte strings

Wide strings

 

Null-terminated byte strings

Functions
Character manipulation
isalnum isalpha islower isupper isdigit isxdigit isblank (C99)	iscntrl isgraph isspace isprint ispunct tolower toupper
Conversions to numeric formats
atof atoiatolatoll strtolstrtoll	strtoulstrtoull strtofstrtodstrtold
String manipulation
strcpy
strncpy
strcat
strncat
strxfrm
String examination
strlen strcmp strncmp strcoll strchr strrchr	strspn strcspn strpbrk strstr strtok
Memory manipulation
memchr
memcmp
memset
memcpy
memmove
Miscellaneous
strerror

 

Defined in header <string.h>
char *strcpy( char          *dest, const char          *src );		(until C99)
char *strcpy( char *restrict dest, const char *restrict src );		(since C99)

Copies the byte string pointed to by src to byte string, pointed to by dest.

If the strings overlap, the behavior is undefined. Also copies the terminating null-byte.

Parameters

dest	-	pointer to the byte string to copy to
src	-	pointer to the null-terminated byte string to copy from

Return value

dest

Example

Run this code

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
int main(void)
{
    char A[] = "Take the test.";
    char *B = malloc(strlen(A) + 1);
    strcpy(B, A);
    A[0] = 'M';
    printf("A = %s\nB = %s", A, B);
 
    return 0;
}

Output:

A = Make the test.
B = Take the test.

See also

strncpy	copies a certain amount of characters from one string to another (function)
memcpy	copies one buffer to another (function)
C++ documentation for strcpy