mirror of
https://github.com/Zygo/bees.git
synced 2025-05-17 13:25:45 +02:00
243480b515
C99's "{ 0 }" notation for filling in a struct with all zeros was not
included in the C++11 standard, so gcc doesn't implement it and neither
does clang.
gcc does (did?) have issues with warnings on the same code in C99,
complaining about uninitialized struct members when "{0}" explicitly
initializes every member to a zero value. These issues don't apply in
the C++ code where NTOA_TABLE_ENTRY_END is used.
Signed-off-by: Zygo Blaxell <bees@furryterror.org>
29 lines
737 B
C++
29 lines
737 B
C++
#ifndef CRUCIBLE_NTOA_H
|
|
#define CRUCIBLE_NTOA_H
|
|
|
|
#include <string>
|
|
|
|
namespace crucible {
|
|
using namespace std;
|
|
|
|
struct bits_ntoa_table {
|
|
unsigned long long n;
|
|
unsigned long long mask;
|
|
const char *a;
|
|
};
|
|
|
|
string bits_ntoa(unsigned long long n, const bits_ntoa_table *a);
|
|
|
|
};
|
|
|
|
// Combinations of bits (list multiple-bit entries first)
|
|
#define NTOA_TABLE_ENTRY_BITS(x) { .n = (x), .mask = (x), .a = (#x) }
|
|
|
|
// Enumerations (entire value matches all bits)
|
|
#define NTOA_TABLE_ENTRY_ENUM(x) { .n = (x), .mask = ~0UL, .a = (#x) }
|
|
|
|
// End of table (sorry, C++ didn't get C99's compound literals, so we have to write out all the member names)
|
|
#define NTOA_TABLE_ENTRY_END() { .n = 0, .mask = 0, .a = nullptr }
|
|
|
|
#endif // CRUCIBLE_NTOA_H
|