printf

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printf

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Tape/disk:	Home » Archimedes archive » Acorn User » AU 1995-05.adf » !C_C
Filename:	printf
Read OK:	✔
File size:	0CFC bytes
Load address:	0000
Exec address:	0000

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�jh��V�@�����0�����4����:A�Q�aR�B+��Shared C library not loaded��Shared C library is out of date`���@����@���`�������p���C����D���������@-���,�������$��P�����@-����@��������p�X��p�����printf and scanf - C for Yourself May 1995
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Variable 1 = %d, variable 2 = %d.
Floating point variable = %f

The last variable only has four decimal places, but it was
printed out to six. This can be altered by including other
information along with the conversion specifiers, as follows.

Floating point number to 4 decimal places: %.4f

This is how you print a fixed width field:
%7d %7d %7.4f
%7.4f %7d %7d

You can also change the justification so that the figures are
left justified.
%-7d %-7d %-7.4f

Characters can also be printed: %c

Please press RETURN to continue.
That last printf cleared the screen by using the code \f.
If you want to print the \ character, use \\ as the control code.

Please enter a new integer for var1:
%dNow, please enter another integer for var2:
%dFinally, please enter a floating point number for fvar:
%ftestfilewFile open failed. Please change directory to one which has write access.
This is some text, and this is variable 1: %d
Variable 2: %d
Floating point variable: %.4f
File close failed. Sorry!
A text file called 'testfile' has just been created in the current directory.
Try loading it into Edit...

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00000000  00 00 a0 e1 00 00 a0 e1  0f 00 00 eb 40 01 00 eb  |............@...|
00000010  11 00 00 ef 45 61 73 79  43 20 41 52 4d 20 4c 69  |....EasyC ARM Li|
00000020  6e 6b 65 72 20 20 00 00  32 2e 30 32 00 00 00 00  |nker  ..2.02....|
00000030  00 00 00 00 fc 8c 00 00  60 9b 00 00 00 00 00 00  |........`.......|
00000040  00 00 00 00 00 00 00 00  00 00 00 00 20 10 4f e2  |............ .O.|
00000050  0c 00 91 e8 02 30 53 e0  0e f0 b0 d1 00 00 a0 e3  |.....0S.........|
00000060  04 00 82 e4 04 30 53 e2  fc ff ff ca 0e f0 b0 e1  |.....0S.........|
00000070  ff 5f 2d e9 ff 9f fd e8  ff 5f 2d e9 ff 9f fd e8  |._-......_-.....|
00000080  00 f0 a0 e3 00 f0 a0 e3  00 f0 a0 e3 00 f0 a0 e3  |................|
*
00000410  00 f0 a0 e3 00 f0 a0 e3  00 f0 a0 e3 10 00 02 ef  |................|
00000420  01 20 a0 e1 a4 10 9f e5  00 30 e0 e3 00 40 a0 e3  |. .......0...@..|
00000430  00 50 e0 e3 9c 00 8f e2  94 60 9f e5 00 00 56 e3  |.P.......`....V.|
00000440  01 6a a0 03 00 60 96 14  06 65 a0 e1 06 68 a0 e1  |.j...`...e...h..|
00000450  81 06 0a ef 06 00 00 6a  06 68 a0 e1 05 08 56 e3  |.......j.h....V.|
00000460  00 40 a0 a1 98 00 8f a2  00 30 a0 a3 03 ff ff aa  |.@.......0......|
00000470  34 00 8f e2 00 10 90 e4  3a 1d 41 e2 02 15 51 e2  |4.......:.A...Q.|
00000480  7f 10 61 52 00 00 8f 42  2b 00 00 ef 90 0e 80 00  |..aR...B+.......|
00000490  53 68 61 72 65 64 20 43  20 6c 69 62 72 61 72 79  |Shared C library|
000004a0  20 6e 6f 74 20 6c 6f 61  64 65 64 00 91 0e 80 00  | not loaded.....|
000004b0  53 68 61 72 65 64 20 43  20 6c 69 62 72 61 72 79  |Shared C library|
000004c0  20 69 73 20 6f 75 74 20  6f 66 20 64 61 74 65 00  | is out of date.|
000004d0  60 9b 00 00 00 00 00 00  01 00 00 00 80 80 00 00  |`...............|
000004e0  40 81 00 00 fc 8c 00 00  18 90 00 00 02 00 00 00  |@...............|
000004f0  40 81 00 00 1c 84 00 00  18 90 00 00 60 9b 00 00  |@...........`...|
00000500  ff ff ff ff 80 80 00 00  70 85 00 00 88 85 00 00  |........p.......|
00000510  43 00 00 00 c0 ff ff ea  44 00 9f e5 18 12 1a e5  |C.......D.......|
00000520  01 00 80 e0 01 10 a0 e3  00 10 c0 e4 00 40 2d e9  |.............@-.|
00000530  04 00 8d e2 2c 10 9f e5  06 00 91 e9 13 ff ff eb  |....,...........|
00000540  24 00 9f e5 00 00 50 e3  00 00 8f 12 00 80 fd e8  |$.....P.........|
00000550  00 40 2d e9 d0 fe ff eb  00 40 bd e8 08 10 9f e5  |.@-......@......|
00000560  08 ff ff ea 11 8e 00 00  70 85 00 00 58 8a 00 00  |........p...X...|
00000570  18 00 00 00 10 85 00 00  70 85 00 00 10 85 00 00  |........p.......|
00000580  18 85 00 00 00 00 00 00  e1 ff ff ea 70 72 69 6e  |............prin|
00000590  74 66 20 61 6e 64 20 73  63 61 6e 66 20 2d 20 43  |tf and scanf - C|
000005a0  20 66 6f 72 20 59 6f 75  72 73 65 6c 66 20 4d 61  | for Yourself Ma|
000005b0  79 20 31 39 39 35 0a 00  2d 2d 2d 2d 2d 2d 2d 2d  |y 1995..--------|
000005c0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 2d 2d 2d 2d 2d 2d  |----------------|
*
000005e0  2d 2d 0a 0a 00 56 61 72  69 61 62 6c 65 20 31 20  |--...Variable 1 |
000005f0  3d 20 25 64 2c 20 76 61  72 69 61 62 6c 65 20 32  |= %d, variable 2|
00000600  20 3d 20 25 64 2e 0a 00  46 6c 6f 61 74 69 6e 67  | = %d...Floating|
00000610  20 70 6f 69 6e 74 20 76  61 72 69 61 62 6c 65 20  | point variable |
00000620  3d 20 25 66 0a 0a 00 54  68 65 20 6c 61 73 74 20  |= %f...The last |
00000630  76 61 72 69 61 62 6c 65  20 6f 6e 6c 79 20 68 61  |variable only ha|
00000640  73 20 66 6f 75 72 20 64  65 63 69 6d 61 6c 20 70  |s four decimal p|
00000650  6c 61 63 65 73 2c 20 62  75 74 20 69 74 20 77 61  |laces, but it wa|
00000660  73 0a 00 70 72 69 6e 74  65 64 20 6f 75 74 20 74  |s..printed out t|
00000670  6f 20 73 69 78 2e 20 54  68 69 73 20 63 61 6e 20  |o six. This can |
00000680  62 65 20 61 6c 74 65 72  65 64 20 62 79 20 69 6e  |be altered by in|
00000690  63 6c 75 64 69 6e 67 20  6f 74 68 65 72 0a 00 69  |cluding other..i|
000006a0  6e 66 6f 72 6d 61 74 69  6f 6e 20 61 6c 6f 6e 67  |nformation along|
000006b0  20 77 69 74 68 20 74 68  65 20 63 6f 6e 76 65 72  | with the conver|
000006c0  73 69 6f 6e 20 73 70 65  63 69 66 69 65 72 73 2c  |sion specifiers,|
000006d0  20 61 73 20 66 6f 6c 6c  6f 77 73 2e 0a 0a 00 46  | as follows....F|
000006e0  6c 6f 61 74 69 6e 67 20  70 6f 69 6e 74 20 6e 75  |loating point nu|
000006f0  6d 62 65 72 20 74 6f 20  34 20 64 65 63 69 6d 61  |mber to 4 decima|
00000700  6c 20 70 6c 61 63 65 73  3a 20 25 2e 34 66 0a 0a  |l places: %.4f..|
00000710  00 54 68 69 73 20 69 73  20 68 6f 77 20 79 6f 75  |.This is how you|
00000720  20 70 72 69 6e 74 20 61  20 66 69 78 65 64 20 77  | print a fixed w|
00000730  69 64 74 68 20 66 69 65  6c 64 3a 0a 00 25 37 64  |idth field:..%7d|
00000740  20 25 37 64 20 25 37 2e  34 66 0a 00 25 37 2e 34  | %7d %7.4f..%7.4|
00000750  66 20 25 37 64 20 25 37  64 0a 0a 00 59 6f 75 20  |f %7d %7d...You |
00000760  63 61 6e 20 61 6c 73 6f  20 63 68 61 6e 67 65 20  |can also change |
00000770  74 68 65 20 6a 75 73 74  69 66 69 63 61 74 69 6f  |the justificatio|
00000780  6e 20 73 6f 20 74 68 61  74 20 74 68 65 20 66 69  |n so that the fi|
00000790  67 75 72 65 73 20 61 72  65 0a 00 6c 65 66 74 20  |gures are..left |
000007a0  6a 75 73 74 69 66 69 65  64 2e 0a 00 25 2d 37 64  |justified...%-7d|
000007b0  20 25 2d 37 64 20 25 2d  37 2e 34 66 0a 0a 00 43  | %-7d %-7.4f...C|
000007c0  68 61 72 61 63 74 65 72  73 20 63 61 6e 20 61 6c  |haracters can al|
000007d0  73 6f 20 62 65 20 70 72  69 6e 74 65 64 3a 20 25  |so be printed: %|
000007e0  63 0a 0a 00 50 6c 65 61  73 65 20 70 72 65 73 73  |c...Please press|
000007f0  20 52 45 54 55 52 4e 20  74 6f 20 63 6f 6e 74 69  | RETURN to conti|
00000800  6e 75 65 2e 0a 00 0c 00  54 68 61 74 20 6c 61 73  |nue.....That las|
00000810  74 20 70 72 69 6e 74 66  20 63 6c 65 61 72 65 64  |t printf cleared|
00000820  20 74 68 65 20 73 63 72  65 65 6e 20 62 79 20 75  | the screen by u|
00000830  73 69 6e 67 20 74 68 65  20 63 6f 64 65 20 5c 66  |sing the code \f|
00000840  2e 0a 00 49 66 20 79 6f  75 20 77 61 6e 74 20 74  |...If you want t|
00000850  6f 20 70 72 69 6e 74 20  74 68 65 20 5c 20 63 68  |o print the \ ch|
00000860  61 72 61 63 74 65 72 2c  20 75 73 65 20 5c 5c 20  |aracter, use \\ |
00000870  61 73 20 74 68 65 20 63  6f 6e 74 72 6f 6c 20 63  |as the control c|
00000880  6f 64 65 2e 0a 0a 00 50  6c 65 61 73 65 20 65 6e  |ode....Please en|
00000890  74 65 72 20 61 20 6e 65  77 20 69 6e 74 65 67 65  |ter a new intege|
000008a0  72 20 66 6f 72 20 76 61  72 31 3a 0a 00 25 64 00  |r for var1:..%d.|
000008b0  4e 6f 77 2c 20 70 6c 65  61 73 65 20 65 6e 74 65  |Now, please ente|
000008c0  72 20 61 6e 6f 74 68 65  72 20 69 6e 74 65 67 65  |r another intege|
000008d0  72 20 66 6f 72 20 76 61  72 32 3a 0a 00 25 64 00  |r for var2:..%d.|
000008e0  46 69 6e 61 6c 6c 79 2c  20 70 6c 65 61 73 65 20  |Finally, please |
000008f0  65 6e 74 65 72 20 61 20  66 6c 6f 61 74 69 6e 67  |enter a floating|
00000900  20 70 6f 69 6e 74 20 6e  75 6d 62 65 72 20 66 6f  | point number fo|
00000910  72 20 66 76 61 72 3a 0a  00 25 66 00 74 65 73 74  |r fvar:..%f.test|
00000920  66 69 6c 65 00 77 00 46  69 6c 65 20 6f 70 65 6e  |file.w.File open|
00000930  20 66 61 69 6c 65 64 2e  20 50 6c 65 61 73 65 20  | failed. Please |
00000940  63 68 61 6e 67 65 20 64  69 72 65 63 74 6f 72 79  |change directory|
00000950  20 74 6f 20 6f 6e 65 20  77 68 69 63 68 20 68 61  | to one which ha|
00000960  73 20 77 72 69 74 65 20  61 63 63 65 73 73 2e 0a  |s write access..|
00000970  00 54 68 69 73 20 69 73  20 73 6f 6d 65 20 74 65  |.This is some te|
00000980  78 74 2c 20 61 6e 64 20  74 68 69 73 20 69 73 20  |xt, and this is |
00000990  76 61 72 69 61 62 6c 65  20 31 3a 20 25 64 0a 00  |variable 1: %d..|
000009a0  56 61 72 69 61 62 6c 65  20 32 3a 20 25 64 0a 46  |Variable 2: %d.F|
000009b0  6c 6f 61 74 69 6e 67 20  70 6f 69 6e 74 20 76 61  |loating point va|
000009c0  72 69 61 62 6c 65 3a 20  25 2e 34 66 0a 00 46 69  |riable: %.4f..Fi|
000009d0  6c 65 20 63 6c 6f 73 65  20 66 61 69 6c 65 64 2e  |le close failed.|
000009e0  20 53 6f 72 72 79 21 0a  00 41 20 74 65 78 74 20  | Sorry!..A text |
000009f0  66 69 6c 65 20 63 61 6c  6c 65 64 20 27 74 65 73  |file called 'tes|
00000a00  74 66 69 6c 65 27 20 68  61 73 20 6a 75 73 74 20  |tfile' has just |
00000a10  62 65 65 6e 20 63 72 65  61 74 65 64 20 69 6e 20  |been created in |
00000a20  74 68 65 20 63 75 72 72  65 6e 74 20 64 69 72 65  |the current dire|
00000a30  63 74 6f 72 79 2e 0a 00  54 72 79 20 6c 6f 61 64  |ctory...Try load|
00000a40  69 6e 67 20 69 74 20 69  6e 74 6f 20 45 64 69 74  |ing it into Edit|
00000a50  2e 2e 2e 0a 00 00 00 00  0d c0 a0 e1 30 d8 2d e9  |............0.-.|
00000a60  04 b0 4c e2 0a 00 5d e1  b8 fd ff bb 0c d0 4d e2  |..L...].......M.|
00000a70  0f c0 a0 e3 00 c0 8d e5  22 c0 a0 e3 08 c0 8d e5  |........".......|
00000a80  8f 81 9f ed 01 01 8d ed  04 00 4f e2 05 0c 40 e2  |..........O...@.|
00000a90  05 fe ff eb e4 00 4f e2  01 0b 40 e2 02 fe ff eb  |......O...@.....|
00000aa0  08 20 9d e5 00 10 9d e5  cb 00 4f e2 01 0b 40 e2  |. ........O...@.|
00000ab0  fd fd ff eb 01 01 9d ed  02 81 2d ed bc 00 4f e2  |..........-...O.|
00000ac0  01 0b 40 e2 06 00 bd e8  f7 fd ff eb ad 00 4f e2  |..@...........O.|
00000ad0  01 0b 40 e2 f4 fd ff eb  7d 00 4f e2 01 0b 40 e2  |..@.....}.O...@.|
00000ae0  f1 fd ff eb 4d 00 4f e2  01 0b 40 e2 ee fd ff eb  |....M.O...@.....|
00000af0  01 01 9d ed 02 81 2d ed  21 00 4f e2 01 0b 40 e2  |......-.!.O...@.|
00000b00  06 00 bd e8 e8 fd ff eb  ff 00 4f e2 03 0c 40 e2  |..........O...@.|
00000b10  e5 fd ff eb 01 01 9d ed  02 81 2d ed 10 20 9d e5  |..........-.. ..|
00000b20  08 10 9d e5 ef 00 4f e2  03 0c 40 e2 08 00 bd e8  |......O...@.....|
00000b30  dd fd ff eb 04 d0 8d e2  00 c0 9d e5 04 c0 2d e5  |..............-.|
00000b40  0c 30 9d e5 02 01 9d ed  02 81 2d ed 08 00 4f e2  |.0........-...O.|
00000b50  01 0b 40 e2 06 00 bd e8  d3 fd ff eb 04 d0 8d e2  |..@.............|
00000b60  0c 00 4f e2 01 0b 40 e2  cf fd ff eb d9 00 4f e2  |..O...@.......O.|
00000b70  03 0c 40 e2 cc fd ff eb  01 01 9d ed 02 81 2d ed  |..@...........-.|
00000b80  10 20 9d e5 08 10 9d e5  f9 0f 4f e2 08 00 bd e8  |. ........O.....|
00000b90  c5 fd ff eb 04 d0 8d e2  42 50 a0 e3 ff 50 05 e2  |........BP...P..|
00000ba0  05 10 a0 e1 ed 00 4f e2  03 0c 40 e2 be fd ff eb  |......O...@.....|
00000bb0  f5 0f 4f e2 bc fd ff eb  cb fd ff eb 00 50 a0 e1  |..O..........P..|
00000bc0  ff 50 05 e2 c6 00 4f e2  03 0c 40 e2 b6 fd ff eb  |.P....O...@.....|
00000bd0  3d 0e 4f e2 b4 fd ff eb  9d 00 4f e2 03 0c 40 e2  |=.O.......O...@.|
00000be0  b1 fd ff eb 65 00 4f e2  03 0c 40 e2 ae fd ff eb  |....e.O...@.....|
00000bf0  0d 10 a0 e1 4f 00 4f e2  03 0c 40 e2 ad fd ff eb  |....O.O...@.....|
00000c00  b9 fd ff eb 0a 00 50 e3  00 00 00 0a fb ff ff ea  |......P.........|
00000c10  da 0f 4f e2 a4 fd ff eb  08 10 8d e2 47 00 4f e2  |..O.........G.O.|
00000c20  03 0c 40 e2 a3 fd ff eb  af fd ff eb 0a 00 50 e3  |..@...........P.|
00000c30  00 00 00 0a fb ff ff ea  36 0e 4f e2 9a fd ff eb  |........6.O.....|
00000c40  04 10 8d e2 33 00 4f e2  03 0c 40 e2 99 fd ff eb  |....3.O...@.....|
00000c50  a5 fd ff eb 0a 00 50 e3  00 00 00 0a fb ff ff ea  |......P.........|
00000c60  43 10 4f e2 03 1c 41 e2  d5 0f 4f e2 8a fd ff eb  |C.O...A...O.....|
00000c70  00 40 b0 e1 55 00 4f 02  03 0c 40 02 8a fd ff 0b  |.@..U.O...@.....|
00000c80  30 a8 5b 09 00 20 9d e5  1f 10 4f e2 03 1c 41 e2  |0.[.. ....O...A.|
00000c90  04 00 a0 e1 85 fd ff eb  01 01 9d ed 02 81 2d ed  |..............-.|
00000ca0  10 20 9d e5 c3 1f 4f e2  04 00 a0 e1 08 00 bd e8  |. ....O.........|
00000cb0  7e fd ff eb 04 d0 8d e2  04 00 a0 e1 74 fd ff eb  |~...........t...|
00000cc0  01 00 00 ea a3 c1 2c 40  c5 b1 2e 6e 00 00 50 e3  |......,@...n..P.|
00000cd0  0a 00 4f 12 03 0c 40 12  73 fd ff 1b 04 00 00 1a  |..O...@.s.......|
00000ce0  ff 00 4f e2 02 0c 40 e2  6f fd ff eb af 0f 4f e2  |..O...@.o.....O.|
00000cf0  6d fd ff eb 00 00 a0 e3  30 a8 5b e9              |m.......0.[.|
00000cfc

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