📄 fo_test.c
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//----------------------------------------------------------------// the file operation test file//----------------------------------------------------------------#include "my_common.h"#ifdef __cplusplusextern "C"#endifchar* fo_test(){ FILE *fd; int ii = 0; int jj = 3; int c; //char aa[100] ;//= {'a','b','c','d',0}; char *aa = malloc(100); //char *bb = "efgh"; if(aa == NULL) return NULL; if ( (fd = fopen("fo.txt","r")) == -1) { return NULL;} while ((c = fgetc(fd)) != EOF) //while(jj--) { //printf("%d ",c); aa[ii++] =c;// fgetc(fd); } printf("\n"); aa[ii]=0; //*aa="abcde"; printf("the string read from fo.txt are: \n%s \n",aa); return aa; }
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