insertLen
Adds a copy of the first @len bytes of @string to the #GStringChunk. The copy is nul-terminated.
Since this function does not stop at nul bytes, it is the caller's responsibility to ensure that @string has at least @len addressable bytes.
The characters in the returned string can be changed, if necessary, though you should not change anything after the end of the string.
Return
a pointer to the copy of @string within the #GStringChunk
Since
2.4
Parameters
string
bytes to insert
len
number of bytes of @string to insert, or -1 to insert a nul-terminated string