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fread 13 Years Ago by hwoarang69 les say we have a binary file. and 1st letter is 3. how do i take 3 and put it into a char ar[]. what i did was if(fread(ar, 1, 1, fine)) { } Re: fread 13 Years Ago by Ancient Dragon If you want to put it into the first byte of ar[] then what you posted is ok. If you want to put it somewhere else then you have to tell the compiler where to put it, e.g. fread( &ar[i], 1, 1, fine); fread() binary mode vc++ 16 Years Ago by kashi_787 …for VC++ 6, it is giving exception at fread() statement. The input to this file we …open input file.\n"); return 1; } else { fread(&header->bfType, sizeof(header->bfType), 1,…;bfReserved2, sizeof(header->bfReserved2), 1, in); fread(&header->bfOffBits, sizeof(header->bfOffBits), … Re: fread causes program to terminate 15 Years Ago by emilo35 …....\n"; fclose(file); return false; } /*if( file==NULL || fread(TGAcompare,1,sizeof(TGAcompare),file)!=sizeof(TGAcompare) || memcmp(TGAheader,TGAcompare…,sizeof(TGAheader))!=0 || fread(header,1,sizeof(header),file)!=sizeof(header)) { if (file ==… fread c 13 Years Ago by hwoarang69 …file and store it in array.(have to use fread). the way i was thinking of doing this …]; int ar2[50]; //read 20 charater at a time while(fread(ar, 1, 20, file) != NULL) { ar2[i] = ar; …} partb: how read one word at a time, by using fread. while(fread(ar, SIZE, file) != 0) { } part3: how read… fread causes program to terminate 15 Years Ago by emilo35 …(TGAcompare),file)!=sizeof(TGAcompare) || memcmp(TGAheader,TGAcompare,sizeof(TGAheader))!=0 || fread(header,1,sizeof(header),file)!=sizeof(header)) { if (file == NULL…->imageData=(GLubyte *)malloc(imageSize); if( texture->imageData==NULL || fread(texture->imageData, 1, imageSize, file)!=imageSize) { if(texture->… Re: fread c 13 Years Ago by Ancient Dragon >>while(fread(ar, 1, 20, file) != NULL) That only reads 20 bytes … 20 * sizeof(int) number of bytes. You need this? while(fread(ar, 20, sizeof(int), file) != NULL) >>how read… read one integer at a time? int i = 0; while( fread( &ar[i], 1, sizeof(int), file) != NULL) ++i… Re: fread() binary mode vc++ 16 Years Ago by Ancient Dragon … call malloc() to allocate memory to that pointer before calling fread() fread with strings handling 14 Years Ago by Ahmed Sarwat Hi, I have a problem with fread,i wrote that program and in the …Hell" and when I increase the elements in fread to 2 it outputs "Hello Wo". …so for each element in fread it reads 4 characters (note i am using sizeof… ifp=fopen("in.txt","r"); fread(text[0],sizeof(char*),1,ifp); printf("first … Re: fread with strings handling 14 Years Ago by Ancient Dragon … opening the file in text mode while fread() expects binary mode. Suggest you replace fread() with fgets() if you want to keep… text mode. >>fread(text[0],sizeof(char*),1,ifp); sizeof(char*) is always… *nix 32-bit compilers is 4. And that's why fread() is only reading 4 characters. Re: fread causes program to terminate 15 Years Ago by emilo35 … terminate. Some other guy was using the enhanced modes for fread (like r+), but never used rewind/fseek etc so I… Re: fread causes program to terminate 15 Years Ago by mitrmkar … the memory anywhere. As to the original crash with [ICODE]fread()[/ICODE], there seems to be a [ICODE]malloc()[/ICODE], involved… Re: fread causes program to terminate 15 Years Ago by Salem > size_t t1 = fread(TGAcompare,1,sizeof(TGAcompare),file); Although it looks pretty, this … fread not working 12 Years Ago by chipbu … 2 days without any result. There is something wrong with fread function. When debugging, it doesn't read all the file… != stdin) fclose(fp); return(0); } dummy = fread((*image), (*cols), (*rows), fp); //ERROR OCCURS HERE, FREAD DOESN'T RETURN CORRECT VALUE (NOT EQUAL… fread, fwrite issues 18 Years Ago by degamer106 … file in binary. I'm sure that I'm using fread and fwrite correctly. However, I keep getting crashes which I…(data, sizeof(STOCK), MAX, temp); fclose(temp); } STOCK test[MAX]; fread(test, sizeof(STOCK), MAX, fp); printf("%hd", test… fread/fwrite 16 Years Ago by GigaCorp …(yesno!='y'); } else { while (!feof(fp)) { numread = fread((patientstructpointer)[*count],sizeof(*patientstructpointer),1,fp); (*count)++; } } system("… asa=0; while (!feof(fp)) { numread = fread((patientstructpointer)[*count],sizeof(*patientstructpointer),1,fp); fflush(stdin); printf… fread() doesn't work when 're-used' in a for( ; ;) function 16 Years Ago by Alex_ …(i=0;i<n;i++){ fgetpos(fp, &filepos); fread(&t, sizeof(int), 1, fp); for(j=i+1…<n-1;j++){ fgetpos(fp, &filepos2);//t2=NULL; fread(&t2, sizeof(int), 1, fp); //<< 'broken', t2… Re: fread() doesn't work when 're-used' in a for( ; ;) function 16 Years Ago by Aia …? [CODE]if ( fp == NULL ) { <error...> }[/CODE] Upon success fread() returns the amount of elements read in a form of… don't you check that? [CODE]size_t result = 0; result = fread(&t, sizeof(int), 1, fp); if( result > 0… Re: fread() doesn't work when 're-used' in a for( ; ;) function 16 Years Ago by Alex_ …(fp, SEEK_SET, 0); do{filepos+=2*i; pos=ftell(fp); fread(&t, sizeof(int), 1, fp); do{j=i+1…; filepos2+=2*j; fread(&t2, sizeof(int), 1, fp);//<<Broken when… Re: fread() doesn't work when 're-used' in a for( ; ;) function 16 Years Ago by Aia [QUOTE=Alex_;628633] If fread worked for 1st and 2nd time, then surely the file … i open the file? like "wr+"[/b][/QUOTE] fread() and fwrite() requires you to open the file in binary… Re: fread() doesn't work when 're-used' in a for( ; ;) function 16 Years Ago by Alex_ …<n-1){filepos=2*i; fsetpos(fp, &filepos); fread(&t, sizeof(int), 1, fp); j=i+1; while…(j<n){ filepos2=2*j; fsetpos(fp, &filepos2); fread(&t2, sizeof(int), 1, fp); if(t>t2… fread or fwrite problem.... 14 Years Ago by USC_Megoy ….."); } fclose(fp); } getch(); } /********FOR FREAD FUNCTION*****************/ void ret_data(information **lab,char labname[]) { information…feof(fp)) { temp=(information*)malloc(sizeof(information)); if((fread(temp,sizeof(information),1,fp))!=0) { while(*lab… Re: fread not working 12 Years Ago by BobS0327 [The solution.](http://cboard.cprogramming.com/c-programming/151719-fread-not-working.html) Re: fread, fwrite issues 18 Years Ago by Micko …;, "rb"); for (i = 0; i <LEN; i++) { fread(&res[i], sizeof(Test), 1, fp); } for (i = 0… Re: fread, fwrite issues 18 Years Ago by Ancient Dragon … write to file\n"); return 1; } } STOCK test[MAX]; fread(test, sizeof(STOCK), MAX, fp); fclose(fp); printf("%hd… Re: fread, fwrite issues 18 Years Ago by degamer106 …("tempdata.dat", "rb"); STOCK temp[MAX]; fread(temp, sizeof(STOCK), 1, ftemp); printf("%hd\n"… Re: fread/fwrite 16 Years Ago by Ancient Dragon … sizeof operator is coded in the line below. [code] while (fread(&patientstructpointer[*count],sizeof(patientstructpointer[0]),1,fp) > 0… Re: fread/fwrite 16 Years Ago by Ancient Dragon … and press enter"); break; } }while(yesno!='y'); } else { while (fread(&patientstructpointer[*count], sizeof(patientstructpointer[0]),1,fp) > 0… Re: fread/fwrite 16 Years Ago by GigaCorp … sizeof operator is coded in the line below. [code] while (fread(&patientstructpointer[*count],sizeof(patientstructpointer[0]),1,fp) > 0… Re: fread() doesn't work when 're-used' in a for( ; ;) function 16 Years Ago by Alex_ … was opened? if ( fp == NULL ) { <error...> } [/QUOTE] If fread worked for 1st and 2nd time, then surely the file…