Gforce first last, head tail, coverage

[jangorecki]

closes #2030
closes #3462

[codecov]

Codecov Report

Merging #3463 into master will decrease coverage by 0.03%.
The diff coverage is 72.72%.

@@            Coverage Diff             @@
##           master    #3463      +/-   ##
==========================================
- Coverage   95.17%   95.14%   -0.04%     
==========================================
  Files          65       65              
  Lines       12298    12321      +23     
==========================================
+ Hits        11705    11723      +18     
- Misses        593      598       +5

Impacted Files	Coverage Δ
R/data.table.R	97.53% <100%> (+0.05%)	⬆️
src/gsumm.c	90.21% <66.66%> (-0.47%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 8a355cf...f0a0a94. Read the comment docs.

[codecov]

Codecov Report

Merging #3463 into master will increase coverage by 0.46%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #3463      +/-   ##
==========================================
+ Coverage   96.15%   96.62%   +0.46%     
==========================================
  Files          65       65              
  Lines       12229    12250      +21     
==========================================
+ Hits        11759    11836      +77     
+ Misses        470      414      -56

Impacted Files	Coverage Δ
src/gsumm.c	96.73% <100%> (+6.04%)	⬆️
R/data.table.R	97.64% <100%> (+0.1%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 025a911...9483522. Read the comment docs.