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mirror of https://git.zap.org.au/git/trader.git synced 2024-07-21 16:14:14 -04:00

Move function comments to start of file; remove unneeded parentheses

This commit is contained in:
John Zaitseff 2011-07-19 22:07:15 +10:00
parent 8725983d94
commit fe65657eda

View File

@ -13,7 +13,8 @@
of the game is to create companies, buy and sell shares, borrow and
repay money, in order to become the wealthiest player (the winner).
This file, trader.c, contains the main program for Star Traders.
This file, trader.c, contains the main program and command-line
interface for Star Traders.
This program is free software: you can redistribute it and/or modify it
@ -35,16 +36,103 @@
/************************************************************************
* Internal function declarations *
* Module-specific constant definitions *
************************************************************************/
// Constants for command line options
enum options_char {
OPTION_NO_COLOR = 1,
};
static const char options_short[] = "hV";
// -h, --help
// -V, --version
static struct option const options_long[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ "no-color", no_argument, NULL, OPTION_NO_COLOR },
{ "no-colour", no_argument, NULL, OPTION_NO_COLOR },
{ NULL, 0, NULL, 0 }
};
/************************************************************************
* Module-specific function prototypes *
************************************************************************/
/*
Function: main - Main program implementing Star Traders
Parameters: argc - Command-line argument count
argv - Command-line argument vector
Returns: int - Operating system return code: 0 if all well, 1 if not.
The main() function is, of course, where all the action starts in a C
program. This function contains the main game loop, a series of game
functions that are called in sequence.
*/
int main (int argc, char *argv[]);
/*
Function: process_cmdline - Process command line arguments
Parameters: argc - Same as passed to main()
argv - Same as passed to main()
Returns: (nothing)
This function processes the command line arguments passed through argc
and argv. If required, it shows the program version number and/or
command-line help. It also sets global variables starting with option_
to appropriate values.
*/
void process_cmdline (int argc, char *argv[]);
/*
Function: show_version - Show program version information
Parameters: (none)
Returns: (does not return)
This function displays version information about this program, then
terminates with exit code EXIT_SUCCESS.
*/
void show_version (void) __attribute__((noreturn));
/*
Function: show_usage - Show command line usage information
Parameters: status - Exit status
Returns: (does not return)
This function displays usage information for this program. If status
is zero, a detailed explanation is sent to stdout; otherwise, a brief
message is sent to stderr. It exits to the operating system with
status as the exit code.
*/
void show_usage (int status) __attribute__((noreturn));
/*
Function: init_program - Initialise program-wide functions
Parameters: (none)
Returns: (nothing)
This function initialises the terminal display, internal low-level
routines, etc. It should be called before the game starts.
*/
void init_program (void);
/*
Function: end_program - Deinitialise program-wide functions
Parameters: (none)
Returns: (nothing)
This function finalises the terminal display, internal low-level
routines, etc. It should be the last function called in the ordinary
course of program execution.
*/
void end_program (void);
@ -54,11 +142,13 @@ void end_program (void);
int main (int argc, char *argv[])
{
// Strip off leading pathname components from program name
init_program_name(argv);
// Initialise the locale
if (setlocale(LC_ALL, "") == NULL) {
err_exit("could not set locale (check LANG, LC_ALL and LANGUAGE in environment)");
err_exit("could not set locale "
"(check LANG, LC_ALL and LANGUAGE in environment)");
}
// Process command line arguments
@ -90,36 +180,10 @@ int main (int argc, char *argv[])
* Command line processing *
************************************************************************/
/* Constants for command line options */
enum options_char {
OPTION_NO_COLOR = 1,
};
static const char options_short[] = "hV";
/* -h --help
-V --version
*/
static struct option const options_long[] = {
{ "help", no_argument, NULL, 'h' },
{ "version", no_argument, NULL, 'V' },
{ "no-color", no_argument, NULL, OPTION_NO_COLOR },
{ "no-colour", no_argument, NULL, OPTION_NO_COLOR },
{ NULL, 0, NULL, 0 }
};
// These functions are documented at the start of this file
/*-----------------------------------------------------------------------
Function: process_cmdline - Process command line arguments
Arguments: argc - Same as passed to main()
argv - Same as passed to main()
Returns: (nothing)
This function processes the command line arguments passed through argc
and argv, setting global variables as appropriate.
*/
/***********************************************************************/
void process_cmdline (int argc, char *argv[])
{
int c;
@ -154,15 +218,15 @@ void process_cmdline (int argc, char *argv[])
// Process remaining arguments
if ((optind < argc) && (argv[optind] != NULL)) {
if (argv[optind][0] == '-') {
if (optind < argc && argv[optind] != NULL) {
if (*argv[optind] == '-') {
fprintf(stderr, "%s: invalid operand `%s'\n", program_name(),
argv[optind]);
show_usage(EXIT_FAILURE);
}
if ((strlen(argv[optind]) == 1) &&
(*argv[optind] >= '1') && (*argv[optind] <= '9')) {
if (strlen(argv[optind]) == 1
&& *argv[optind] >= '1' && *argv[optind] <= '9') {
game_num = *argv[optind] - '0';
} else {
fprintf(stderr, "%s: invalid game number `%s'\n",
@ -173,7 +237,7 @@ void process_cmdline (int argc, char *argv[])
optind++;
}
if ((optind < argc) && (argv[optind] != NULL)) {
if (optind < argc && argv[optind] != NULL) {
fprintf(stderr, "%s: extra operand `%s'\n", program_name(),
argv[optind]);
show_usage(EXIT_FAILURE);
@ -181,15 +245,7 @@ void process_cmdline (int argc, char *argv[])
}
/*-----------------------------------------------------------------------
Function: show_version - Show program version information
Arguments: (none)
Returns: (nothing)
This function displays version information about this program, then
terminates.
*/
/***********************************************************************/
void show_version (void)
{
printf("\
@ -210,19 +266,12 @@ NO WARRANTY, to the extent permitted by law; see the License for details.\n\
}
/*-----------------------------------------------------------------------
Function: show_usage - Show command line usage information
Arguments: status - Exit status
Returns: (nothing)
This function displays usage information to standard output or standard
error, then terminates.
*/
/***********************************************************************/
void show_usage (int status)
{
const char *pn = program_name();
if (status != EXIT_SUCCESS) {
fprintf(stderr, "%s: Try `%s --help' for more information.\n",
pn, pn);
@ -263,16 +312,10 @@ playing that game. If GAME is not specified, start a new game.\n\n\
* Initialisation and deinitialisation function definitions *
************************************************************************/
// These functions are documented at the start of this file
/*-----------------------------------------------------------------------
Function: init_program - Initialise program-wide functions
Arguments: (none)
Returns: (nothing)
This function initialises the terminal display, internal low-level
routines, etc.
*/
/***********************************************************************/
void init_program (void)
{
// Initialise the random number generator
@ -286,15 +329,7 @@ void init_program (void)
}
/*-----------------------------------------------------------------------
Function: end_program - Deinitialise program-wide functions
Arguments: (none)
Returns: (nothing)
This function finalises the terminal display, internal low-level
routines, etc.
*/
/***********************************************************************/
void end_program (void)
{
end_screen();