GCC's -Wconversion has some issues. For example, good luck getting gcc to /not/ emit a warning for this code, in C or C++. I have yet to find the appropriate ca

GCC's -Wconversion has some issues. For example, good luck getting gcc to /not/ emit a warning for this code, in C or C++. I have yet to find the appropriate cast to avoid a warning. Clang does not warn for this. typedef struct { unsigned value : 4; } S; void foo(S* s, unsigned value) { // error: conversion from 'unsigned int' to 'unsigned char:4' may change value s->value = value; } I mean, I guess I can see the rationale.. it's just annoying to have to resort to using pragmas to turn off -Wconversion whenever I need to assign to a bitfield.