https://bugs.exim.org/show_bug.cgi?id=2355
Bug ID: 2355
Summary: 1 << 31 is undefined behaviour
Product: PCRE
Version: 10.32 (PCRE2)
Hardware: x86
OS: Linux
Status: NEW
Severity: bug
Priority: medium
Component: Code
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Hello, cppcheck has reported some issues like:
[src/sljit/sljitNativeARM_64.c:473]: (error) Shifting signed 32-bit value by 31
bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:475]: (error) Shifting signed 32-bit value by 31
bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:479]: (error) Shifting signed 32-bit value by 31
bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:563]: (error) Shifting signed 32-bit value by 31
bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:713]: (error) Shifting signed 32-bit value by 31
bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:721]: (error) Shifting signed 32-bit value by 31
bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:731]: (error) Shifting signed 32-bit value by 31
bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:1083]: (error) Shifting signed 32-bit value by
31 bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:1363]: (error) Shifting signed 32-bit value by
31 bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:1385]: (error) Shifting signed 32-bit value by
31 bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:1665]: (error) Shifting signed 32-bit value by
31 bits is undefined behaviour
[src/sljit/sljitNativeARM_64.c:1790]: (error) Shifting signed 32-bit value by
31 bits is undefined behaviour
Replacing `1 << 31` with `1U << 31` ought to do the trick.
Thanks
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