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bcopy(3) Library Functions Manual bcopy(3) NAME bcopy, bcmp, bzero - Perform memory operations LIBRARY Standard C Library (libc.so, libc.a) SYNOPSIS #include <strings.h> void bcopy( const void *source, void *destination, size_t length); int bcmp( const void *string1, const void *string2, size_t length); void bzero( void *string, size_t length); The following function definitions do not conform to current standards and are supported only for backward compatibility: #include <string.h> void bcopy( const char *source, char *destination, int length); int bcmp( const char *string1, const char *string2, int length); void bzero( char *string, int length); STANDARDS Interfaces documented on this reference page conform to industry stan- dards as follows: bcopy(), bcmp(), bzero(): XPG4-UNIX Refer to the standards(5) reference page for more information about in- dustry standards and associated tags. PARAMETERS Points to the original string for the bcopy() function. Points to the destination string for the bcopy() function. Specifies the byte string to be compared to the string2 parameter by the bcmp() function. Speci- fies the byte string to be compared to the string1 parameter by the bcmp() function. Specifies the length (in bytes) of the string. DESCRIPTION The bcopy(), bcmp(), and bzero() functions operate on variable length strings of bytes. Unlike the string functions, they do not check for null bytes. The bcopy() function copies the value of the length parameter in bytes from the string in the source parameter to the string in the destina- tion parameter. The bcmp() function compares the byte string in the string1 parameter against the byte string of the string2 parameter, returning a 0 (zero) value if the two strings are identical and a nonzero value otherwise. The bzero() function nulls the string in the string parameter, for the value of the length parameter in bytes. NOTES [Digital] The bcopy() function is similar to the memcpy() function ex- cept that the first two parameters are reversed. RELATED INFORMATION Functions: memccpy(3), memcpy(3), string(3), swab(3) Standards: standards(5) delim off bcopy(3)