has internal linkage but is not defined

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
has internal linkage but is not defined	0.34	0.5	38	75	39
has	1.9	1	842	74	3
internal	0.6	0.7	9020	35	8
linkage	1.14	0.6	7191	21	7
but	1.43	0.2	5494	1	3
is	1.21	0.4	4685	42	2
not	0.01	0.4	3482	42	3
defined	0.71	0.7	2198	84	7

Keyword	CPC	PCC	Volume	Score
has internal linkage but is not defined	0.41	0.3	8814	59
what is internal linkage	0.79	0.4	4743	94
an entity with internal linkage cannot be	1.99	1	4906	61
function has internal linkage	1.27	0.2	5845	92
internal linkage and external linkage in c	1.64	0.1	9711	33
unreferenced function with internal linkage	1.67	0.4	6673	99
name linkage is not defined	1.12	0.4	4259	52
what is an internal link	1.77	0.7	2721	25
weak declaration cannot have internal linkage	0.46	0.9	328	43
what is internal linking	1.07	0.3	8655	4
internal and external linkage in c	0.15	0.7	9512	21
has no incoming internal links	1.36	0.1	8923	86
in the context of a linkage problem	0.99	0.8	7330	78
external/internal linkage conflict	0.27	0.3	4450	36
internal and external linking	0.23	0.2	9595	19
internal linking related contents	0.79	0.3	9014	88
in the context of a linkage function	0.43	0.2	9355	27