Prepends len bytes of val to string.

If len is positive, val may contain embedded nuls and need not be nul-terminated. It is the caller's responsibility to ensure that val has at least len addressable bytes.

If len is negative, val must be nul-terminated and len is considered to request the entire string length. This makes g_string_prepend_len() equivalent to g_string_prepend().

class StringG
string val
ptrdiff_t len


val string

bytes to prepend

len ptrdiff_t

number of bytes in val to prepend, or -1 for all of val

Return Value

Type: StringG