support parse string as char[n]

[bbbgan]

No description provided.

[codecov-commenter]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.13 🎉

Comparison is base (8f74581) 46.37% compared to head (3d02c7a) 46.51%.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master     #183      +/-   ##
==========================================
+ Coverage   46.37%   46.51%   +0.13%     
==========================================
  Files          42       42              
  Lines        5947     5962      +15     
==========================================
+ Hits         2758     2773      +15     
  Misses       3189     3189              

Impacted Files	Coverage Δ
iguana/json_util.hpp	22.72% <ø> (ø)
iguana/json_reader.hpp	75.00% <100.00%> (+1.47%)	⬆️
iguana/json_writer.hpp	100.00% <100.00%> (ø)
test/unit_test.cpp	99.61% <100.00%> (+<0.01%)	⬆️

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[qicosmos]

LGTM