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mbig.c
Go to the documentation of this file.00001 #include <stdio.h>
00002 #include <stdlib.h>
00003 #include <string.h>
00004
00005 int main( int argc , char * argv[] )
00006 {
00007 int mm,ii ;
00008 char * cc ;
00009
00010 if( argc < 2 || strcmp(argv[1],"-help")==0 ){
00011 printf("Usage: mbig n\n"
00012 "Will allocate n Megabytes of memory, then quit.\n") ;
00013 exit(0) ;
00014 }
00015
00016 mm = strtol( argv[1] , NULL , 10 ) ;
00017 if( mm <= 0 ) exit(1) ;
00018
00019 cc = (char *)malloc( mm*1024*1024 * sizeof(char) ) ;
00020 printf("Malloc-ed %d Megabytes",mm) ; fflush(stdout) ;
00021 for( ii=0 ; ii < mm*1024*1024 ; ii++ ) cc[ii] = (char) (ii%128) ;
00022
00023 for( ii=0 ; ii < 3 ; ii++ ){
00024 sleep(1) ; printf(".") ; fflush(stdout) ;
00025 }
00026 printf("\n") ; exit(0) ;
00027 }
