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Examples/stdio

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Tape/disk: Home » Archimedes archive » Acorn User » AU 1994-02.adf » !C_Interp_C_Interp
Filename: Examples/stdio
Read OK:
File size: 0241 bytes
Load address: 0000
Exec address: 0000
File contents
@* An example of some stdio library routines *@

main()
{
char text[40];
int fileptr, i;

bbc_mode(12);

sprintf(text,">>TEXT<<");
printf("This is a simple stdio test program: %s\n",text);

fileptr = fopen("testfile","w");
if(!fileptr)
  puts("Can't open output file!");
else
  {
  for(i=0; i<20; i++)
    {
    fprintf(fileptr,"\nThis is some text in a file (line %d).",i+1);
    }
  fclose(fileptr);
  }

for(fileptr=fopen("testfile","r"); !feof(fileptr);)
  {
  fgets(text,39,fileptr);
  if(!feof(fileptr))
    printf("%s",text);
  }
fclose(fileptr);

remove("testfile");
}
00000000  40 2a 20 41 6e 20 65 78  61 6d 70 6c 65 20 6f 66  |@* An example of|
00000010  20 73 6f 6d 65 20 73 74  64 69 6f 20 6c 69 62 72  | some stdio libr|
00000020  61 72 79 20 72 6f 75 74  69 6e 65 73 20 2a 40 0a  |ary routines *@.|
00000030  0a 6d 61 69 6e 28 29 0a  7b 0a 63 68 61 72 20 74  |.main().{.char t|
00000040  65 78 74 5b 34 30 5d 3b  0a 69 6e 74 20 66 69 6c  |ext[40];.int fil|
00000050  65 70 74 72 2c 20 69 3b  0a 0a 62 62 63 5f 6d 6f  |eptr, i;..bbc_mo|
00000060  64 65 28 31 32 29 3b 0a  0a 73 70 72 69 6e 74 66  |de(12);..sprintf|
00000070  28 74 65 78 74 2c 22 3e  3e 54 45 58 54 3c 3c 22  |(text,">>TEXT<<"|
00000080  29 3b 0a 70 72 69 6e 74  66 28 22 54 68 69 73 20  |);.printf("This |
00000090  69 73 20 61 20 73 69 6d  70 6c 65 20 73 74 64 69  |is a simple stdi|
000000a0  6f 20 74 65 73 74 20 70  72 6f 67 72 61 6d 3a 20  |o test program: |
000000b0  25 73 5c 6e 22 2c 74 65  78 74 29 3b 0a 0a 66 69  |%s\n",text);..fi|
000000c0  6c 65 70 74 72 20 3d 20  66 6f 70 65 6e 28 22 74  |leptr = fopen("t|
000000d0  65 73 74 66 69 6c 65 22  2c 22 77 22 29 3b 0a 69  |estfile","w");.i|
000000e0  66 28 21 66 69 6c 65 70  74 72 29 0a 20 20 70 75  |f(!fileptr).  pu|
000000f0  74 73 28 22 43 61 6e 27  74 20 6f 70 65 6e 20 6f  |ts("Can't open o|
00000100  75 74 70 75 74 20 66 69  6c 65 21 22 29 3b 0a 65  |utput file!");.e|
00000110  6c 73 65 0a 20 20 7b 0a  20 20 66 6f 72 28 69 3d  |lse.  {.  for(i=|
00000120  30 3b 20 69 3c 32 30 3b  20 69 2b 2b 29 0a 20 20  |0; i<20; i++).  |
00000130  20 20 7b 0a 20 20 20 20  66 70 72 69 6e 74 66 28  |  {.    fprintf(|
00000140  66 69 6c 65 70 74 72 2c  22 5c 6e 54 68 69 73 20  |fileptr,"\nThis |
00000150  69 73 20 73 6f 6d 65 20  74 65 78 74 20 69 6e 20  |is some text in |
00000160  61 20 66 69 6c 65 20 28  6c 69 6e 65 20 25 64 29  |a file (line %d)|
00000170  2e 22 2c 69 2b 31 29 3b  0a 20 20 20 20 7d 0a 20  |.",i+1);.    }. |
00000180  20 66 63 6c 6f 73 65 28  66 69 6c 65 70 74 72 29  | fclose(fileptr)|
00000190  3b 0a 20 20 7d 0a 0a 66  6f 72 28 66 69 6c 65 70  |;.  }..for(filep|
000001a0  74 72 3d 66 6f 70 65 6e  28 22 74 65 73 74 66 69  |tr=fopen("testfi|
000001b0  6c 65 22 2c 22 72 22 29  3b 20 21 66 65 6f 66 28  |le","r"); !feof(|
000001c0  66 69 6c 65 70 74 72 29  3b 29 0a 20 20 7b 0a 20  |fileptr);).  {. |
000001d0  20 66 67 65 74 73 28 74  65 78 74 2c 33 39 2c 66  | fgets(text,39,f|
000001e0  69 6c 65 70 74 72 29 3b  0a 20 20 69 66 28 21 66  |ileptr);.  if(!f|
000001f0  65 6f 66 28 66 69 6c 65  70 74 72 29 29 0a 20 20  |eof(fileptr)).  |
00000200  20 20 70 72 69 6e 74 66  28 22 25 73 22 2c 74 65  |  printf("%s",te|
00000210  78 74 29 3b 0a 20 20 7d  0a 66 63 6c 6f 73 65 28  |xt);.  }.fclose(|
00000220  66 69 6c 65 70 74 72 29  3b 0a 0a 72 65 6d 6f 76  |fileptr);..remov|
00000230  65 28 22 74 65 73 74 66  69 6c 65 22 29 3b 0a 7d  |e("testfile");.}|
00000240  0a                                                |.|
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