/* * Copyright (c) 2000-2001 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * */ #ifndef UTIL_H #define UTIL_H #include <assert.h> #include <stdarg.h> #include <stdlib.h> #include <regions.h> #include <ansidecl.h> #include "compiler.h" #include "linkage.h" #include "bool.h" EXTERN_C_BEGIN #ifdef HAVE_VARIADIC_MACROS #define fail(args...) __fail(__FILE__, __LINE__, __FUNCTION__, args) #else void fail(const char *fmt, ...); #endif void __fail(const char *file, unsigned int line, const char *func, const char *fmt, ...) __attribute__ ((__noreturn__)); /* insist(action) is like assert(action), but action may have side-effects */ #ifdef NDEBUG # define insist(action) (action) #else # define insist assert #endif #ifdef NDEBUG # define insistnot(action) (action) #else # define insistnot(action) assert(!(action)) #endif void failure(const char *message); /* Concatenate 2 strings, allocating space in r for the result */ char *rstrcat(region, const char *, const char *); /* Concatenate n strings, allocating space in r for the result. The last argument should be a null pointer. */ char *rstrscat(region, ...); /* Convert an integer to a string, storing the result in r */ const char *inttostr(region r, int); /* sprintf a string, allocating space in r for the result */ char *rsprintf(region r, const char *fmt, ...); char *rvsprintf(region r, const char *fmt, va_list args); /* Convert a pointer to an ascii string with leading 0x. Re-uses internal buffer. */ char *ptr_to_ascii(void *ptr); /* Convert a pointer to an integer */ long ptr_hash(void *ptr); /* Return TRUE iff ptr1 == ptr2 */ bool ptr_eq(void *ptr1, void *ptr2); /* Return TRUE iff s1 == s2 */ bool str_eq(const char *s1, const char *s2); /* A total ordering on pointers. Returns 0 if ptr1 = ptr2, a value <0 if ptr1 < ptr2, or a value >0 if ptr1 > ptr2. */ int ptr_cmp(const void *ptr1, const void *ptr2); static inline int min(int a, int b) { if (a < b) return a; else return b; } static inline int max(int a, int b) { if (a < b) return b; else return a; } EXTERN_C_END #endif