Mac OS X 10.4.9 for x86 Source Code gcc 实现源代码

				/* APPLE LOCAL file Macintosh alignment */				/* align-test-5*.c are all the same code but with different options.  */								/* { dg-do run } */				/* { dg-options "-malign-power -DSIZE=12" } */								/* We have a different test to pick up the warning from 64-bit case.  */				/* { dg-xfail-if "" { powerpc*-*-darwin* } { "-m64" } { "" } } */								/*				 * GCC alignment test for command line options for setting alignment modes.				 * Fred Forsman				 * Apple Computer, Inc.				 */				 				 /* Check whether we are testing GCC 3 or later.  */				#ifdef __GNUC__				#if __GNUC__ >= 3				#define GCC3 1				#else				#define GCC3 0				#endif				#endif								#include 				#include 				#include 								#define Q(x) #x, x								typedef unsigned char UINT8;				typedef unsigned long UINT32;								static int bad_option = 0;				static int flag_verbose = 0;				static int nbr_failures = 0;								typedef struct S0 {				    UINT8	f1;				    double	f2;				} S0;								static void check(char * rec_name, int actual, int expected, char * comment)				{				    if (flag_verbose || (actual != expected)) {				        printf("%-20s = %2d (%2d) ", rec_name, actual, expected);				        if (actual != expected) {				            printf("*** FAIL");				            nbr_failures++;				        } else				            printf("    PASS");				        printf(": %s\n", comment);				    }				}								static void check_option(char *option)				{				    if (*option == '-') {				        if (strcmp(option, "-v") == 0)				            flag_verbose = 1;				        else {				            fprintf(stderr, "*** unrecognized option '%s'.\n", option);				            bad_option = 1;				        }				    } else {				        fprintf(stderr, "*** unrecognized option '%s'.\n", option);				        bad_option = 1;				    }				}								int main(int argc, char *argv[])				{				    int i;				    				    for (i = 1; i < argc; i++)				        check_option(argv[i]);				    				    if (bad_option)				        return 1;								    check(Q(sizeof(S0)), SIZE, "struct with 1 char, 1 double");								    if (nbr_failures > 0)				    	return 1;				    else				    	return 0;				}