ccore/include/core/Utility.h

#ifndef CORE_UTILITY_H
#define CORE_UTILITY_H

#include <string.h>

#include "core/Types.h"

size_t popCount(u64 u);
#define interpolate(a, b, factor) ((a) * (1.0f - (factor)) + (b) * (factor))
#define PI 3.14159265358979323846f
#define radianToDegree(radians) ((radians) * (180.0f / PI))
#define degreeToRadian(degrees) ((degrees) * (PI / 180.0f))

#define MIN_MAX(type, name)                               \
    inline type max##name(type a, type b) {               \
        return a > b ? a : b;                             \
    }                                                     \
    inline type min##name(type a, type b) {               \
        return a < b ? a : b;                             \
    }                                                     \
    inline type clamp##name(type t, type from, type to) { \
        return max##name(min##name(t, to), from);         \
    }
MIN_MAX(size_t, Size)
MIN_MAX(u32, U32)

typedef void (*ExitHandler)(int, void*);
[[noreturn]] void exitWithHandler(const char* file, int line, int value);
void setExitHandler(ExitHandler h, void* data);
#define EXIT(exitValue) exitWithHandler(__FILE__, __LINE__, exitValue)

typedef void (*OutOfMemoryHandler)(void*);
void setOutOfMemoryHandler(OutOfMemoryHandler h, void* data);

#ifdef CHECK_MEMORY
void* coreDebugAllocate(const char* file, int line, size_t n);
void* coreDebugZeroAllocate(const char* file, int line, size_t n);
void* coreDebugReallocate(const char* file, int line, void* p, size_t n);
void coreFreeDebug(const char* file, int line, void* p);
void printMemoryReport(void);
#define coreAllocate(n) coreDebugAllocate(__FILE__, __LINE__, n)
#define coreZeroAllocate(n) coreDebugZeroAllocate(__FILE__, __LINE__, n)
#define coreReallocate(p, n) coreDebugReallocate(__FILE__, __LINE__, p, n)
#define coreFree(p) coreFreeDebug(__FILE__, __LINE__, p)
#else
void* coreAllocate(size_t n);
void* coreZeroAllocate(size_t n);
void* coreReallocate(void* p, size_t n);
void coreFree(void* p);
#define printMemoryReport()
#endif

bool sleepNanos(i64 nanos);
i64 getNanos(void);

#define swap(a, b)             \
    do {                       \
        auto aPointer = (a);   \
        auto bPointer = (b);   \
        auto tmp = *aPointer;  \
        *aPointer = *bPointer; \
        *bPointer = tmp;       \
    } while(0)

#define BUBBLE_SORT(type, Type) void bubbleSort##Type(type* data, size_t n);
#define BUBBLE_SORT_SOURCE(type, Type, greaterThan)     \
    void bubbleSort##Type(type* data, size_t n) {       \
        bool swapped = true;                            \
        while(swapped && n > 0) {                       \
            swapped = false;                            \
            n--;                                        \
            for(size_t i = 0; i < n; i++) {             \
                if(greaterThan(data[i], data[i + 1])) { \
                    swap(data + i, data + i + 1);       \
                    swapped = true;                     \
                }                                       \
            }                                           \
        }                                               \
    }

#endif