1 #ifndef lint 2 #ifndef NOID 3 static char elsieid[] = "@(#)ialloc.c 8.29"; 4 #endif /* !defined NOID */ 5 #endif /* !defined lint */ 6 7 /* 8 * @(#)ialloc.c 8.29 9 * $FreeBSD: src/usr.sbin/zic/ialloc.c,v 1.5 1999/08/28 01:21:18 peter Exp $ 10 * $DragonFly: src/usr.sbin/zic/ialloc.c,v 1.3 2004/02/29 16:55:28 joerg Exp $ 11 */ 12 /*LINTLIBRARY*/ 13 14 #include "private.h" 15 16 #define nonzero(n) (((n) == 0) ? 1 : (n)) 17 18 char * 19 imalloc(const int n) 20 { 21 return malloc((size_t) nonzero(n)); 22 } 23 24 char * 25 icalloc(int nelem, int elsize) 26 { 27 if (nelem == 0 || elsize == 0) 28 nelem = elsize = 1; 29 return calloc((size_t) nelem, (size_t) elsize); 30 } 31 32 void * 33 irealloc(void *const pointer, const int size) 34 { 35 if (pointer == NULL) 36 return imalloc(size); 37 return realloc((void *) pointer, (size_t) nonzero(size)); 38 } 39 40 char * 41 icatalloc(char *const old, const char *new) 42 { 43 char *result; 44 int oldsize, newsize; 45 46 newsize = (new == NULL) ? 0 : strlen(new); 47 if (old == NULL) 48 oldsize = 0; 49 else if (newsize == 0) 50 return old; 51 else oldsize = strlen(old); 52 if ((result = irealloc(old, oldsize + newsize + 1)) != NULL) 53 if (new != NULL) 54 (void) strcpy(result + oldsize, new); 55 return result; 56 } 57 58 char * 59 icpyalloc(const char *string) 60 { 61 return icatalloc((char *) NULL, string); 62 } 63 64 void 65 ifree(char * const p) 66 { 67 if (p != NULL) 68 (void) free(p); 69 } 70 71 void 72 icfree(char * const p) 73 { 74 if (p != NULL) 75 (void) free(p); 76 } 77