unsigned int to float

gistfile1.cpp

#include <stdio.h>

static inline float uintToFloat(unsigned int v)
{
    union {
        unsigned int ui;
        float f;
    } c;
    c.ui = v;
    return c.f;
}

static const float foox = uintToFloat(0x3f800000);

class Foo
{
public:
    static const float ONE;
};

const float Foo::ONE = uintToFloat(0x3f800000);

int main(void)
{
    static const float foo = uintToFloat(0x3f800000);
    printf("%f %f\n", foox, foo);
    return 0;
}