From 9fb0a3ddbc954cc6a7b792409842a6b1d007ef26 Mon Sep 17 00:00:00 2001 From: Miles Bader Date: Mon, 5 Feb 1996 21:32:48 +0000 Subject: (struct hol_entry, make_hol, hol_entry_short_iterate, hol_entry_long_iterate, hol_entry_first_short, hol_entry_first_long, hol_find_entry, hol_sort, hol_entry_help, argp_hol, argp_args_usage, argp_doc, argp_help, argp_error): Add `const' where appropriate. --- libshouldbeinlibc/argp-help.c | 71 +++++++++++++++++++++++-------------------- 1 file changed, 38 insertions(+), 33 deletions(-) (limited to 'libshouldbeinlibc/argp-help.c') diff --git a/libshouldbeinlibc/argp-help.c b/libshouldbeinlibc/argp-help.c index 687cdbc3..4f1f038a 100644 --- a/libshouldbeinlibc/argp-help.c +++ b/libshouldbeinlibc/argp-help.c @@ -1,6 +1,6 @@ /* Hierarchial argument parsing help output - Copyright (C) 1995 Free Software Foundation, Inc. + Copyright (C) 1995, 1996 Free Software Foundation, Inc. Written by Miles Bader @@ -115,7 +115,7 @@ find_char (char ch, char *beg, char *end) struct hol_entry { /* First option. */ - struct argp_option *opt; + const struct argp_option *opt; /* Number of options (including aliases). */ unsigned num; @@ -147,10 +147,10 @@ struct hol }; /* Create a struct hol from an array of struct argp_option. */ -struct hol *make_hol (struct argp_option *opt) +struct hol *make_hol (const struct argp_option *opt) { char *so; - struct argp_option *o; + const struct argp_option *o; struct hol_entry *entry; unsigned num_short_options = 0; struct hol *hol = malloc (sizeof (struct hol)); @@ -219,12 +219,12 @@ hol_free (struct hol *hol) static inline int hol_entry_short_iterate (const struct hol_entry *entry, - int (*func)(struct argp_option *opt, - struct argp_option *real)) + int (*func)(const struct argp_option *opt, + const struct argp_option *real)) { unsigned nopts; int val = 0; - struct argp_option *opt, *real = entry->opt; + const struct argp_option *opt, *real = entry->opt; char *so = entry->short_options; for (opt = real, nopts = entry->num; nopts > 0 && !val; opt++, nopts--) @@ -242,12 +242,12 @@ hol_entry_short_iterate (const struct hol_entry *entry, static inline int hol_entry_long_iterate (const struct hol_entry *entry, - int (*func)(struct argp_option *opt, - struct argp_option *real)) + int (*func)(const struct argp_option *opt, + const struct argp_option *real)) { unsigned nopts; int val = 0; - struct argp_option *opt, *real = entry->opt; + const struct argp_option *opt, *real = entry->opt; for (opt = real, nopts = entry->num; nopts > 0 && !val; opt++, nopts--) if (opt->name) @@ -265,7 +265,8 @@ hol_entry_long_iterate (const struct hol_entry *entry, static char hol_entry_first_short (const struct hol_entry *entry) { - inline int func1 (struct argp_option *opt, struct argp_option *real) + inline int func1 (const struct argp_option *opt, + const struct argp_option *real) { return opt->key; } @@ -273,10 +274,10 @@ hol_entry_first_short (const struct hol_entry *entry) } /* Returns the first valid long option in ENTRY, or 0 if there is none. */ -static char * +static const char * hol_entry_first_long (const struct hol_entry *entry) { - struct argp_option *opt; + const struct argp_option *opt; unsigned num; for (opt = entry->opt, num = entry->num; num > 0; opt++, num--) if (opt->name && ovisible (opt)) @@ -293,7 +294,7 @@ static struct hol_entry *hol_find_entry (struct hol *hol, char *name) while (num_entries-- > 0) { - struct argp_option *opt = entry->opt; + const struct argp_option *opt = entry->opt; unsigned num_opts = entry->num; while (num_opts-- > 0) @@ -334,8 +335,8 @@ hol_sort (struct hol *hol) { int short1 = hol_entry_first_short (entry1); int short2 = hol_entry_first_short (entry2); - char *long1 = hol_entry_first_long (entry1); - char *long2 = hol_entry_first_long (entry2); + const char *long1 = hol_entry_first_long (entry1); + const char *long2 = hol_entry_first_long (entry2); if (!short1 && !short2 && long1 && long2) /* Only long options. */ @@ -413,7 +414,7 @@ hol_append (struct hol *hol, struct hol *more) for (left = more->num_entries; left > 0; e++, left--) { int opts_left; - struct argp_option *opt; + const struct argp_option *opt; e->short_options = so; @@ -457,7 +458,7 @@ hol_entry_help (struct hol_entry *entry, struct line *line, { unsigned num; int first = 1; /* True if nothing's been printed so far. */ - struct argp_option *real = entry->opt, *opt; + const struct argp_option *real = entry->opt, *opt; char *so = entry->short_options; /* Inserts a comma if this isn't the first item on the line, and then makes @@ -537,7 +538,7 @@ hol_entry_help (struct hol_entry *entry, struct line *line, /* Now the option documentation. */ { unsigned col = line_column (line); - char *doc = real->doc; + const char *doc = real->doc; if (col > OPT_DOC_COL + 3) line_newline (line, OPT_DOC_COL); @@ -606,7 +607,8 @@ hol_usage (struct hol *hol, struct line *line) ; nentries > 0 ; entry++, nentries--) { - inline int func2 (struct argp_option *opt, struct argp_option *real) + inline int func2 (const struct argp_option *opt, + const struct argp_option *real) { if (! (opt->arg || real->arg)) *snao_end++ = opt->key; @@ -625,7 +627,8 @@ hol_usage (struct hol *hol, struct line *line) ; nentries > 0 ; entry++, nentries--) { - inline int func3 (struct argp_option *opt, struct argp_option *real) + inline int func3 (const struct argp_option *opt, + const struct argp_option *real) { if (opt->arg || real->arg) if ((opt->flags | real->flags) & OPTION_ARG_OPTIONAL) @@ -644,7 +647,8 @@ hol_usage (struct hol *hol, struct line *line) ; nentries > 0 ; entry++, nentries--) { - int func4 (struct argp_option *opt, struct argp_option *real) + int func4 (const struct argp_option *opt, + const struct argp_option *real) { if (opt->arg || real->arg) if ((opt->flags | real->flags) & OPTION_ARG_OPTIONAL) @@ -664,9 +668,9 @@ hol_usage (struct hol *hol, struct line *line) /* Make a HOL containing all levels of options in ARGP. */ static struct hol * -argp_hol (struct argp *argp) +argp_hol (const struct argp *argp) { - struct argp **parents = argp->parents; + const struct argp **parents = argp->parents; struct hol *hol = make_hol (argp->options); if (parents) while (*parents) @@ -677,10 +681,10 @@ argp_hol (struct argp *argp) /* Print all the non-option args documented in ARGP to LINE. Any output is preceded by a space. */ static void -argp_args_usage (struct argp *argp, struct line *line) +argp_args_usage (const struct argp *argp, struct line *line) { - struct argp **parents = argp->parents; - char *doc = argp->args_doc; + const struct argp **parents = argp->parents; + const char *doc = argp->args_doc; if (doc) add_usage_item (line, "%s", doc); if (parents) @@ -691,10 +695,10 @@ argp_args_usage (struct argp *argp, struct line *line) /* Print the documentation for ARGP to LINE. Each separate bit of documentation is preceded by a blank line. */ static void -argp_doc (struct argp *argp, struct line *line) +argp_doc (const struct argp *argp, struct line *line) { - struct argp **parents = argp->parents; - char *doc = argp->doc; + const struct argp **parents = argp->parents; + const char *doc = argp->doc; if (doc) { line_newline (line, 0); @@ -708,7 +712,7 @@ argp_doc (struct argp *argp, struct line *line) /* Output a usage message for ARGP to STREAM. FLAGS are from the set ARGP_HELP_*. */ -void argp_help (struct argp *argp, FILE *stream, unsigned flags) +void argp_help (const struct argp *argp, FILE *stream, unsigned flags) { int first = 1; struct hol *hol = 0; @@ -786,10 +790,11 @@ void argp_help (struct argp *argp, FILE *stream, unsigned flags) /* Print the printf string FMT and following args, preceded by the program name and `:', to stderr, and followed by a `Try ... --help' message. Then exit (1). */ -void argp_error (struct argp *argp, char *fmt, ...) +void argp_error (const struct argp *argp, const char *fmt, ...) { /* Assert that argp_help doesn't return, which it doesn't, as we use it. */ - void argp_help (struct argp *, FILE *, unsigned) __attribute__ ((noreturn)); + void argp_help (const struct argp *, FILE *, unsigned) + __attribute__ ((noreturn)); va_list ap; fputs (program_invocation_name, stderr); -- cgit v1.2.3