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bugfix: floating point representaion without fractional part

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closes https://github.com/json-c/json-c/issues/278
This commit is contained in:
Jan Gerhards
2016-11-27 11:47:00 +01:00
parent d050f1e622
commit ca7a1973e2
2 changed files with 6 additions and 3 deletions
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5
json_object.c
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@@ -693,6 +693,7 @@ static int json_object_double_to_json_string_format(struct json_object* jso,
{
char buf[128], *p, *q;
int size;
double dummy; /* needed for modf() */
/* Although JSON RFC does not support
NaN or Infinity as numeric values
ECMA 262 section 9.8.1 defines
@@ -706,7 +707,9 @@ static int json_object_double_to_json_string_format(struct json_object* jso,
size = snprintf(buf, sizeof(buf), "-Infinity");
else
size = snprintf(buf, sizeof(buf),
format ? format : "%.17g", jso->o.c_double);
format ? format :
(modf(jso->o.c_double, &dummy) == 0) ? "%.17g.0" : "%.17g",
jso->o.c_double);
p = strchr(buf, ',');
if (p) {

4
tests/test_parse.expected
View File

@@ -31,8 +31,8 @@ new_obj.to_string()={ "foo": "bar", "baz": null, "bool0": true }
new_obj.to_string()={ "foo": [ null, "foo" ] }
new_obj.to_string()={ "abc": 12, "foo": "bar", "bool0": false, "bool1": true, "arr": [ 1, 2, 3, null, 5 ] }
new_obj.to_string()={ "abc": "blue\nred\ngreen" }
new_obj.to_string()=[ 0 ]
new_obj.to_string()=[ 0 ]
new_obj.to_string()=[ 0.0 ]
new_obj.to_string()=[ 0.0 ]
new_obj.to_string()=null
new_obj.to_string()=[ 9223372036854775807 ]
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