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Fixed data overflow issue when int64 value is interpreted as float/double.

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This commit is contained in:
Alexander Smorkalov
2026-05-18 13:35:38 +03:00
parent 873a4635c6
commit bd0bc5af59
2 changed files with 12 additions and 2 deletions
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modules/core/src/persistence.cpp
+3 -2
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@@ -2410,7 +2410,7 @@ FileNode::operator float() const
if( type == INT )
{
return (float)readInt(p);
return (float)readLong(p);
}
else if( type == REAL )
{
@@ -2431,7 +2431,7 @@ FileNode::operator double() const
if( type == INT )
{
return (double)readInt(p);
return (double)readLong(p);
}
else if( type == REAL )
{
@@ -2442,6 +2442,7 @@ FileNode::operator double() const
}
double FileNode::real() const { return double(*this); }
std::string FileNode::string() const
{
const uchar* p = ptr();
modules/core/test/test_io.cpp
+9
View File
@@ -2155,6 +2155,7 @@ TEST(Core_InputOutput, FileStorage_int64_26829)
"IntMax: 2147483647\n"
"String4: string4\n"
"Int64Max: 9223372036854775807\n"
"Int64Reg: 2147484671\n"
"String5: string5\n";
FileStorage fs(content, FileStorage::READ | FileStorage::MEMORY);
@@ -2197,6 +2198,14 @@ TEST(Core_InputOutput, FileStorage_int64_26829)
fs["Int64Max"] >> value;
EXPECT_EQ(value, INT64_MAX);
fs["Int64Reg"] >> value;
EXPECT_EQ(value, 2147484671); // C++ INT_MAX +1024
}
{
double value = fs["Int64Reg"].real();
EXPECT_EQ(value, 2147484671); // C++ INT_MAX +1024
}
}