| Issue |
87941
|
| Summary |
[clang++] Clang not emitting diagnostic warning for possible integer overflow
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
lamarrr
|
Consider the following code:
```cpp
#include "stdint.h"
void ST_WriteReg(uint16_t reg, uint8_t* bytes, uint32_t size);
void ST_SetCursor(uint16_t x, uint16_t y) {
uint8_t param[4];
param[0] = 0x00;
param[1] = 0x00 + x;
param[2] = 0x00;
param[3] = 0xEF + x;
ST_WriteReg(0, param, 4);
param[0] = 0x00;
param[1] = 0x00 + y;
param[2] = 0x00;
param[3] = 0xEF + y;
ST_WriteReg(0, param, 4);
}
```
even with all warnings (-Wall -Wextra -Wpedantic) turned on, no warning is emitted for assigning the promoted (u16) to the u8 array.
is this the intended behavior? if not, I'd like to take on this.
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
