Arav/kwh-cost
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src directory as well as a separate header file is absolutely not necessary. Also fixed a typo price_kwh_to_wattspersecond -> price_kwh_to_wattsecond, because because a price per kilowatt-hour is being converted to watt-second. Also added a notice about a licence that is used.

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This commit is contained in:
Alexander Andreev 2024-04-26 04:03:48 +04:00
parent 5fa6142b21
commit 9112fc018c
Signed by: Arav
GPG Key ID: 25969B23DCB5CA34
3 changed files with 19 additions and 27 deletions
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4
Makefile
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@ -5,13 +5,11 @@ PREFIX:=/usr/local
CFLAGS=--std=c99 -O3 -Wall -Werror -Wextra -pedantic
SRC_DIR=src
DESTDIR=/
.PHONY: clean install uninstall test
${TARGET}: ${SRC_DIR}/main.c ${SRC_DIR}/main.h
${TARGET}: main.c
${CC} ${CFLAGS} ${LDFLAGS} $< -o $@
clean:

23
src/main.c → main.c
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@ -2,15 +2,27 @@
#include <stdlib.h>
#include <string.h>
#include "main.h"
#define VERSION "1.1.1"
typedef long double price_t;
typedef long double wattage_t;
typedef unsigned long interval_t;
int parse_arguments(const int argc, const char *const *const argv,
price_t *const price, wattage_t *const wattage, interval_t *const interval);
inline interval_t interval_to_seconds(const char *const interval);
inline price_t price_kwh_to_wattsecond(const price_t price);
inline void print_version();
inline void print_usage();
int main(const int argc, const char *const *const argv) {
price_t price;
wattage_t wattage;
interval_t interval = 0;
int res = parse_arguments(argc, argv, &price, &wattage, &interval);
switch (res) {
switch (parse_arguments(argc, argv, &price, &wattage, &interval)) {
case 1: print_usage(); exit(0);
case 2: print_version(); exit(0);
case 99: fputs("Unknown flag provided.\n", stderr); print_usage(); exit(1);
@ -36,7 +48,7 @@ int parse_arguments(const int argc, const char *const *const argv,
} else if (argc < 4) {
return 1;
} else if (pos == 0) {
*price = price_kwh_to_wattspersecond((price_t)atof(argv[i]));
*price = price_kwh_to_wattsecond((price_t)atof(argv[i]));
++pos;
} else if (pos == 1) {
*wattage = (wattage_t)atof(argv[2]);
@ -65,13 +77,14 @@ inline interval_t interval_to_seconds(const char *const interval) {
}
}
inline price_t price_kwh_to_wattspersecond(const price_t price) {
inline price_t price_kwh_to_wattsecond(const price_t price) {
return price / 1000.f / 3600.f;
}
inline void print_version() {
fputs("kwh-cost Ver. " VERSION "\n"
"Copyright (C) 2021-2023 Alexander \"Arav\" Andreev <me@arav.su>. All rights reserved.\n"
"This program is distributed under the terms of MIT+NIGGER licence.\n"
"You can see a license for this program in /usr/share/licenses/kwh-cost/LICENSE.\n", stderr);
}

19
src/main.h
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@ -1,19 +0,0 @@
#ifndef _MAIN_H_
#define _MAIN_H_
#define VERSION "1.1.1"
typedef long double price_t;
typedef long double wattage_t;
typedef unsigned long interval_t;
int parse_arguments(const int argc, const char *const *const argv,
price_t *const price, wattage_t *const wattage, interval_t *const interval);
inline interval_t interval_to_seconds(const char *const interval);
inline price_t price_kwh_to_wattspersecond(const price_t price);
inline void print_version();
inline void print_usage();
#endif