strcpy()
QNX SDP8.0C Library ReferenceAPIDeveloper
Copy a string
Synopsis:
#include <string.h>
char* strcpy( char* dst,
const char* src );
Arguments:
- dst
- A pointer to where you want to copy the string.
- src
- The string that you want to copy.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The strcpy() function copies the string pointed to by src (including the terminating NUL character) into the array pointed to by dst.
Note:
Copying of overlapping objects isn't guaranteed to work properly. See the
memmove()
function for information on copying objects that overlap.
Returns:
The same pointer as dst.
Examples:
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int main( void )
{
char buffer[80];
strcpy( buffer, "Hello " );
strcat( buffer, "world" );
printf( "%s\n", buffer );
return EXIT_SUCCESS;
}
produces the output:
Hello world
Environment variables:
- LIBC_STRINGS
- On certain targets, you can use this environment variable to select the implementation of
strcpy().
The value is one of the strings given below.
- for AArch64 targets:
- generic — the default
- for AArch64 targets:
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Signal handler | Yes |
| Thread | Yes |
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