| Keyword | CPC | PCC | Volume | Score | Length of keyword |
|---|---|---|---|---|---|
| ifdef cplusplus extern c | 0.01 | 0.5 | 7413 | 1 | 24 |
| ifdef | 0.76 | 0.5 | 7958 | 90 | 5 |
| cplusplus | 0.84 | 0.5 | 2270 | 49 | 9 |
| extern | 1.2 | 0.2 | 2432 | 70 | 6 |
| c | 0.82 | 0.3 | 2031 | 10 | 1 |
| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| ifdef cplusplus extern c | 2 | 0.1 | 3525 | 57 |
