/* need to include MAXMIN_MAC.H for MIN() and STRING.H for STRNCPY() */

#define MAX_CHAR 100  /* number of chars in the longest string */

static char tempS[MAX_CHAR+1]; /* +1 for terminal '\0' */
static const char *tempA, *tempB;
#define STRCAT(a,b) \
	( tempA = a, tempB = b, \
         strncpy(tempS, tempA, MIN(MAX_CHAR, strlen(tempA))), \
         strncpy(tempS + strlen(tempA), tempB, \
                        MIN(MAX_CHAR-strlen(tempA), strlen(tempB)+1)), \
	tempS \
         )