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annotate toys/posix/true.c @ 1634:5fac2769a159 draft

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Redo option parsing infrastructure so #define FORCE_FLAGS can unzero flag macros for a disabled command (needed when multiple commands share infrastructure with a common set of flags). This means the flag space is no longer packed, but leaves gaps where the zeroes go. (Actual flag bit positions are the same for all configs.) Since the option parsing needs to know where the holes are, the OPTSTR values are now generated as part of flags.h with ascii 1 values for the disabled values. (So generated/oldflags.h went away.) This also means that the option string argument for OLDTOY() went away, it now uses the same arguments as the NEWTOY() it references.
author Rob Landley <rob@landley.net>
date Wed, 31 Dec 2014 21:30:59 -0600
parents e2b84f715e93
children
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1 /* true.c - Return zero.
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30a6db5a95c2 Add comments about SUSv3 specs (or lack thereof).
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2 *
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3 * Copyright 2007 Rob Landley <rob@landley.net>
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4 *
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5 * See http://opengroup.org/onlinepubs/9699919799/utilities/true.html
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6
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163498bf547b Move NEWTOY() list from end of toylist.h to generated/newtoys.h.
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7 USE_TRUE(NEWTOY(true, NULL, TOYFLAG_BIN))
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5fac2769a159 Redo option parsing infrastructure so #define FORCE_FLAGS can unzero flag macros for a disabled command (needed when multiple commands share infrastructure with a common set of flags).
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8 USE_TRUE(OLDTOY(:, true, TOYFLAG_NOFORK))
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9
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10 config TRUE
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11 bool "true"
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12 default y
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13 help
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14 Return zero.
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15 */
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16
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17 #include "toys.h"
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18
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19 void true_main(void)
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20 {
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21 return;
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22 }