char * strncpy ( char * destination, const char * source, size_t num );

Parameters

destination

Pointer to the destination array where the content is to be copied.

source

C string to be copied.

num

Maximum number of characters to be copied from source.
size_t is an unsigned integral type.

Return Value

destination is returned.

Example

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/* strncpy example */ #include <stdio.h> #include <string.h> int main () { char str1[]= "To be or not to be"; char str2[40]; char str3[40]; /* copy to sized buffer (overflow safe): */ strncpy ( str2, str1, sizeof(str2) ); /* partial copy (only 5 chars): */ strncpy ( str3, str2, 5 ); str3[5] = '\0'; /* null character manually added */ puts (str1); puts (str2); puts (str3); return 0; }

Edit & Run

Output:

To be or not to be To be or not to be To be