.B dstr
and must hold when any function is called:
.hP \*o
-If
+If
.B sz
is nonzero, then
.B buf
.SS "Extending a string"
All memory allocation for strings is done by the function
.BR dstr_ensure .
-Given a pointer
+Given a pointer
.I d
to a
.B dstr
.B EXC_NOMEM
is raised. See
.BR exc (3)
-for more information about
+for more information about
.BR mLib 's
exception handling system.
.PP