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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) {