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Libraries
json
Commits
a382a93a
Commit
a382a93a
authored
Mar 23, 2015
by
Niels
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Merge pull request #38 from wtsi-hgi/feature/small-float-serialization
Feature/small float serialization
parents
bb2671df
7bfcbe28
Changes
2
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2 changed files
with
14 additions
and
2 deletions
+14
-2
src/json.hpp
src/json.hpp
+8
-2
test/unit.cpp
test/unit.cpp
+6
-0
No files found.
src/json.hpp
View file @
a382a93a
...
...
@@ -1882,7 +1882,8 @@ class basic_json
recursively. Note that
- strings and object keys are escaped using escape_string()
- numbers are converted to a string before output using std::to_string()
- integer numbers are converted to a string before output using std::to_string()
- floating-point numbers are converted to a string using "%g" format
@param prettyPrint whether the output shall be pretty-printed
@param indentStep the indent level
...
...
@@ -1990,7 +1991,12 @@ class basic_json
case
(
value_t
:
:
number_float
)
:
{
return
std
::
to_string
(
m_value
.
number_float
);
// 15 digits of precision allows round-trip IEEE 754 string->double->string
unsigned
int
sz
=
(
unsigned
int
)
std
::
snprintf
(
nullptr
,
0
,
"%.15g"
,
m_value
.
number_float
);
std
::
vector
<
char
>
buf
(
sz
+
1
);
std
::
snprintf
(
&
buf
[
0
],
buf
.
size
(),
"%.15g"
,
m_value
.
number_float
);
string_t
formatted
=
buf
.
data
();
return
formatted
;
}
default:
...
...
test/unit.cpp
View file @
a382a93a
...
...
@@ -1160,6 +1160,12 @@ TEST_CASE("object inspection")
CHECK
(
s
.
find
(
"42.23"
)
!=
std
::
string
::
npos
);
}
SECTION
(
"dump and small floating-point numbers"
)
{
auto
s
=
json
(
1.23456e-78
).
dump
();
CHECK
(
s
.
find
(
"1.23456e-78"
)
!=
std
::
string
::
npos
);
}
SECTION
(
"dump and non-ASCII characters"
)
{
CHECK
(
json
(
"ä"
).
dump
()
==
"
\"
ä
\"
"
);
...
...
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