<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/83765>83765</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            No warning reported for floating point comparison
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          mushenoy
      </td>
    </tr>
</table>

<pre>
    Clang doesnt report any warning for floating point comparision, while GCC reports a warning for the same program.

Sample program:
```
struct number { float no; };

int test (struct number *obj) {
        if (! obj->no ) {
 return 0;
        }
        return 1;
}
```

Compilation with Clang:
No warnings reported
```
# clang -Wfloat-equal -c prog.c
#
```

Compilation with GCC:
```
# gcc -Wfloat-equal -c prog.c
prog.c: In function test:
prog.c:4:13: warning: comparing floating-point with == or != is unsafe [-Wfloat-equal]
    4 |         if (! obj->no ) {
      |             ^
```

Compiler Versions:
```
clang version 16.0.6 
gcc (GCC) 13.2.1
```
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJyUVMFuqzgU_ZrL5irI2BDCgkVCmmo2sxlpZm3AAVfGZmzTqH__ZKCkqV773osiYuNzj4_PuTF3TnZaiBKyE2TniE--N7YcJtcLbd6i2rRvZaW47rA1wmmPVozGeuT6DW_caqk7vBqLV2W4D5PRSO2xMcPIrXTSaKAV3nqpBD5X1VrukD9U-16g44PA0ZrO8iEGcgZyXJ7_8GFU2xKw9TXsyfqdp87bqfGop6EWFiE_LZJQG2AnhPwM7PSRNaj0wnkEevhUS4-mfgFaBJYFjOtHXgMcaIKmftkBe9IGH4FW-MlqJNtu76VBwcOLFZncdb0jPp1seVZmGKXiXhqNN-l7nFPZ3PjbvBvqVo9F-3M2yrCZA939Nzu0E_9PXOGumR2Omw32J2Keq-qrYMKGXdN8v906Zkf8S-N10s1MHfLZaDdICuyYsIBdTxyGa8OFflo7cbd04iwP2BnYGU0INwkj6XDSjl8FQnZ6UAbZh5xShLzC309_TfpeMs-zp19aKSz-K2z4u7ivfFxCe11QmOxjEu9xWQr2Aj2EEGiBCYtpnHziiNqStQUreCTKJCdFxkjB0qgvac0yltfXjBQHktZMMJLned7u84TUSZtFsqSEpoSRlGQpTdI4zfZUFKxJiqxoE1JDSsTApYqVeh1iY7tIOjeJ8sDyfRYpXgvl5vuFUi1uOC8CpeG6sWWo2dVT5yAlSjrv7ixeeiXKe2Nvff3dhWN0NFlV9t6Ps5P0AvTSSd9PddyYAegl8K8_u9GaF9F4oJdZlQN6mVX_CAAA__--cXhS">