cpp-macros.h

#define MAT(name, T, n, d) \
  vector<vector<T>> name(n, vector<T>(n, d))
#define MAT2(name, T, n, m, d) \
  vector<vector<T>> name(n, vector<T>(m, d))

#define DBG(e) \
  cout << #e << " = " << (e)

macros.h

/* STMT, useful for creating multiple statements macros */

#define STMT( stuff )  do { stuff } while (0)

/* Loops */

#define FOREVER       for(;;)
#define FOR(i,a,b)    for(i=(a);(i<=(b));((i)++))
#define FOREACH(i, A) for(int _keep=1, \
                      _count=0,\
                      _size=sizeof (A) / sizeof *(A); \
                      _keep && _count != _size; \
                      _keep = !_keep, _count++) \
                      for(i = (A)+_count; _keep; _keep = !_keep)

/* Maths */

#define PI                  3.14159265
#define RAD2DEG(x)          ((x)/PI*180)
#define DEG2RAD(x)          ((x)*PI/180)
#define CLIP(x, min, max)   (((x) < (min)) ? (min) : \
                            (((x) > (max)) ? (max) : (x)))
#define UCLIP(x, max)       (((x) > (max)) ? (max) : (x))
#define LCLIP(x, min)       (((x) < (min)) ? (min) : (x))
#define MIN(x, y)           (((x) < (y)) ?  (x) : (y))
#define MAX(x, y)           (((x) > (y)) ?  (x) : (y))
#define SWAP(a, b)          STMT( a ^= b; b ^= a; a ^= b; )
#define SORT(a, b)          STMT( if ((a) > (b)) SWAP((a), (b)); )
#define COMPARE(x, y)       (((x) > (y)) - ((x) < (y)))
#define SIGN(x)             COMPARE(x, 0)
#define IS_ODD( num )       ((num) & 1)
#define IS_EVEN( num )      (!IS_ODD( (num) ))
#define IS_BETWEEN(n,L,H)   ((n) >= (L) && (n) <= (H))

/* STRINGS */

#define STRING char*
#define STR2(s)             #s
#define STR(s)              STR2(s)
#define CAT(str1,str2)      (str1 "" str2)

/* TOKENS */

#define PASTE2(a,b)         a##b
#define PASTE(a,b)          PASTE2(a,b)
#define PRINT_TOKEN(token)  printf(#token " is %d", token)

/* DEBUGGING */

#define LOG(x, fmt, ...)    if(x){printf("%s:%d: " fmt "\n",\
                            __FILE__, __LINE__,__VA_ARGS__);}
#define TRY(x,s)            if(!(x)){printf("%s:%d:%s",__FILE__, __LINE__,s);}
/*you have to  #define DEBUG to enable ASSERT*/
#ifndef DEBUG
#define ASSERT(n)
#else
#define ASSERT(n)           if(!(n)) { \
                            printf("%s - Failed ",#n); \
                            printf("On %s ",__DATE__); \
                            printf("At %s ",__TIME__); \
                            printf("In File %s ",__FILE__); \
                            printf("At Line %d\n",__LINE__); \
                            return(-1);}
#endif