MACRO
OMNI_VAL_SET_FLAG_BIT - Sets a flag bit in a value.
DESCRIPTION top
You can utilize this macro if you wish to set specific bit flag within a specified numeric value.
Example:
The output for this would be:
You can utilize this macro if you wish to set specific bit flag within a specified numeric value.
Example:
typedef struct enum_vals {
typedef enum enum_t {
VAL1 = 1, // 0001
VAL2 = 2, // 0010
VAL3 = 4, // 0100
VAL4 = 8 // 1000
} enum_t;
} enum_vals;
int i = 42; // 0010 1010
std::cout << "VAL2 " << (OMNI_VAL_HAS_FLAG_BIT(i, enum_vals::VAL2) ? "is" : "is NOT") << " set" << std::endl;
std::cout << "VAL3 " << (OMNI_VAL_HAS_FLAG_BIT(i, enum_vals::VAL3) ? "is" : "is NOT") << " set" << std::endl;
OMNI_VAL_UNSET_FLAG_BIT(i, enum_vals::VAL2);
OMNI_VAL_SET_FLAG_BIT(i, enum_vals::VAL3);
std::cout << "VAL2 " << (OMNI_VAL_HAS_FLAG_BIT(i, enum_vals::VAL2) ? "is" : "is NOT") << " set" << std::endl;
std::cout << "VAL3 " << (OMNI_VAL_HAS_FLAG_BIT(i, enum_vals::VAL3) ? "is" : "is NOT") << " set" << std::endl;VAL2 is set VAL3 is NOT set VAL2 is NOT set VAL3 is set