strncpy copies 'n' bytes from one string to another.

Library: string.h
Prototype: char strncpy(char s1, const char *s2, size_t n);
Syntax:	 size_t n;
	 char string1[20]="red dwarf";
	 char string2[20]=";
 strncpy(string2, string1, 4);

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Notes

• It may be nessacary to add your own NULL terminator. see strcpy for more information. strncpy has serious flaws.
  • It doesn't put a nul-terminator on the destination if it is completely filled; and
  • It always completely fills the destination, with nuls, which is unnecessary.

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example program.

An alternative method using 'sprintf'...

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See also:

• strcpy Copy a string.
• memcpy Copy memory.
• strtok Get characters upto a seperator.
• strcasecmp Compare strings, ignoring case.

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Martin Leslie