Merge branch 'odin' of git.hitchhiker-linux.org:jeang3nie/libepoch into odin

functions; TODO - write tests

Makefile

@@ -83,12 +83,11 @@ install_shared: lib$(libname).so
 test: lib$(libname).a
 	$(MAKE) -C test
 
-testclean:
+testclean: clean
 	$(MAKE) -C test clean
 
 clean:
 	rm -rf *.a *.so *.o
-	$(MAKE) -C test clean
 
 .PHONY: all shared static clean install install_include install_static \
 	install_shared testclean test

config.mk

@@ -0,0 +1,12 @@
+PREFIX     ?= /usr/local
+bindir      = $(DESTDIR)$(PREFIX)/bin
+includedir  = $(DESTDIR)$(PREFIX)/include
+libdir      = $(DESTDIR)$(PREFIX)/lib
+sharedir    = $(DESTDIR)$(PREFIX)/share
+mandir      = $(sharedir)/man
+docdir      = $(sharedir)/doc/libepoch
+# We need an `echo` program that doesn't screw with terminal escape sequences.
+# This only matters if /bin/sh is a symlink to dash, as the echo builtin in dash
+# will screw with them and pass them as printed characters.
+ECHO        = /bin/echo
+

datetime.c

@@ -1,5 +1,151 @@
-#include "epoch.h"
+/*                 _,.---._    .-._        .--.-. ,--.--------.
+ *   _,..---._   ,-.' , -  `. /==/ \  .-._/==/  //==/,  -   , -\
+ * /==/,   -  \ /==/_,  ,  - \|==|, \/ /, |==\ -\\==\.-.  - ,-./
+ * |==|   _   _\==|   .=.     |==|-  \|  | \==\- \`--`\==\- \
+ * |==|  .=.   |==|_ : ;=:  - |==| ,  | -|  `--`-'     \==\_ \
+ * |==|,|   | -|==| , '='     |==| -   _ |             |==|- |
+ * |==|  '='   /\==\ -    ,_ /|==|  /\ , |             |==|, |
+ * |==|-,   _`/  '.='. -   .' /==/, | |- |             /==/ -/
+ * `-.`.____.'     `--`--''   `--`./  `--`             `--`--`
+ *                    _ __    ,---.      .-._         .=-.-.  _,.----.
+ *                 .-`.' ,`..--.'  \    /==/ \  .-._ /==/_ /.' .' -   \
+ *                /==/, -   \==\-/\ \   |==|, \/ /, /==|, |/==/  ,  ,-'
+ *               |==| _ .=. /==/-|_\ |  |==|-  \|  ||==|  ||==|-   |  .
+ *               |==| , '=',\==\,   - \ |==| ,  | -||==|- ||==|_   `-' \
+ *               |==|-  '..'/==/ -   ,| |==| -   _ ||==| ,||==|   _  , |
+ *               |==|,  |  /==/-  /\ - \|==|  /\ , ||==|- |\==\.       /
+ *               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
+ *               `--`---'   `--`        `--`./  `--``--`-`
+ *
+ *	@(#)Copyright (c) 2024, Nathan D. Fisher.
+ *
+ *      This is free software.  It comes with NO WARRANTY.
+ *      Permission to use, modify and distribute this source code
+ *      is granted subject to the following conditions.
+ *      1/ that the above copyright notice and this notice
+ *      are preserved in all copies and that due credit be given
+ *      to the author.
+ *      2/ that any changes to this code are clearly commented
+ *      as such so that the author does not get blamed for bugs
+ *      other than his own.
+ */
 
-int32_t dateTimeGetYear(DateTime *dt) {
-    return dt->year.year;
+#include "epoch.h"
+#include <stdint.h>
+#include <time.h>
+
+int32_t dateTimeGetYear(DateTime *self) {
+    return self->year.year;
 }
+
+int64_t dateTimeGetTimestampNaive(DateTime *self) {
+    int64_t seconds = 0;
+    Year    year    = (Year){ .tag = normalYear, .year = 1970 };
+    Month   month   = January;
+    int32_t oldyear = yearGetInner(&self->year);
+
+    if (oldyear < 1970) {
+        while (yearGetInner(&year) > oldyear) {
+            yearDecrement(&year);
+            seconds -= yearGetSeconds(&year);
+        }
+    } else if (oldyear > 1970) {
+        while (yearGetInner(&year) < oldyear) {
+            seconds += yearGetSeconds(&year);
+            yearIncrement(&year);
+        }
+    }
+    while (month < self->month) {
+        seconds += monthGetSeconds(month, &self->year);
+        monthIncrement(&month);
+    }
+    seconds += ((int64_t)self->day - 1) * SECONDS_PER_DAY;
+    seconds += (int64_t)self->hour * SECONDS_PER_HOUR;
+    seconds += (int64_t)self->minute * 60;
+    seconds += (int64_t)self->second;
+    return seconds;
+}
+
+int64_t dateTimeGetTimestamp(DateTime *self) {
+    int64_t seconds = dateTimeGetTimestampNaive(self);
+    seconds += timezoneAsSeconds(&self->zone);
+    return seconds;
+}
+
+void dateTimeGetTimespec(DateTime *self, struct timespec * ts) {
+    ts->tv_nsec = self->nanoseconds;
+    ts->tv_sec  = (time_t)dateTimeGetTimestamp(self);
+}
+
+Weekday dateTimeGetWeekday(DateTime *self) {
+    int64_t ts = dateTimeGetTimestampNaive(self);
+    ts /= SECONDS_PER_DAY;
+    return ts % 7;
+}
+
+void dateTimeFromTimestampParts(DateTime *self, int64_t seconds, int64_t nanoseconds) {
+    int     ret = 0;
+    
+    self->nanoseconds = nanoseconds;
+    self->zone.tag = UTC;
+    if (seconds < 0) {
+        yearNew(&self->year, 1969);
+        while (seconds < yearGetSeconds(&self->year)) {
+            seconds += yearGetSeconds(&self->year);
+            yearDecrement(&self->year);
+        }
+        self->month = December;
+        while (ret == 0) {
+            if (-seconds < monthGetSeconds(self->month, &self->year)) break;
+            seconds += monthGetSeconds(self->month, &self->year);
+            ret = monthDecrement(&self->month);
+        }
+        ret = 0;
+        self->day = monthGetDays(self->month, &self->year);
+        while (self->day > 0 && seconds < -SECONDS_PER_DAY) {
+            seconds += SECONDS_PER_DAY;
+            self->day -=1;
+        }
+        self->hour = 23;
+        while (self->hour > 0 && seconds < -SECONDS_PER_HOUR) {
+            seconds += SECONDS_PER_HOUR;
+            self->hour -= 1;
+        }
+        self->minute = 59;
+        while (self->minute > 0 && seconds < -60) {
+            seconds += 60;
+            self->minute -= 1;
+        }
+        self->second = seconds + 60;
+    } else if (seconds > 0) {
+        yearNew(&self->year, 1970);
+        while (yearGetSeconds(&self->year) < seconds) {
+            seconds -= yearGetSeconds(&self->year);
+            yearIncrement(&self->year);
+        }
+        self->month = January;
+        while (ret == 0 && monthGetSeconds(self->month, &self->year) < seconds) {
+            seconds -= (int64_t)monthGetSeconds(self->month, &self->year);
+            ret = monthIncrement(&self->month);
+        }
+        self->day = seconds / SECONDS_PER_DAY + 1;
+        seconds %= SECONDS_PER_DAY;
+        self->hour = seconds / SECONDS_PER_HOUR;
+        seconds %= SECONDS_PER_HOUR;
+        self->minute = seconds / 60;
+        seconds %= 60;
+        self->second = seconds;
+    } else {
+        yearNew(&self->year, 1970);
+        self->month = January;
+        self->day = 1;
+        self->hour = 0;
+        self->minute = 0;
+        self->second = 0;
+    }
+}
+
+void dateTimeFromTimespec(DateTime *self, struct timespec *ts) {
+    dateTimeFromTimestampParts(self, ts->tv_sec, ts->tv_nsec);
+}
+

include/epoch.h

@@ -1,11 +1,44 @@
+/*                 _,.---._    .-._        .--.-. ,--.--------.
+ *   _,..---._   ,-.' , -  `. /==/ \  .-._/==/  //==/,  -   , -\
+ * /==/,   -  \ /==/_,  ,  - \|==|, \/ /, |==\ -\\==\.-.  - ,-./
+ * |==|   _   _\==|   .=.     |==|-  \|  | \==\- \`--`\==\- \
+ * |==|  .=.   |==|_ : ;=:  - |==| ,  | -|  `--`-'     \==\_ \
+ * |==|,|   | -|==| , '='     |==| -   _ |             |==|- |
+ * |==|  '='   /\==\ -    ,_ /|==|  /\ , |             |==|, |
+ * |==|-,   _`/  '.='. -   .' /==/, | |- |             /==/ -/
+ * `-.`.____.'     `--`--''   `--`./  `--`             `--`--`
+ *                    _ __    ,---.      .-._         .=-.-.  _,.----.
+ *                 .-`.' ,`..--.'  \    /==/ \  .-._ /==/_ /.' .' -   \
+ *                /==/, -   \==\-/\ \   |==|, \/ /, /==|, |/==/  ,  ,-'
+ *               |==| _ .=. /==/-|_\ |  |==|-  \|  ||==|  ||==|-   |  .
+ *               |==| , '=',\==\,   - \ |==| ,  | -||==|- ||==|_   `-' \
+ *               |==|-  '..'/==/ -   ,| |==| -   _ ||==| ,||==|   _  , |
+ *               |==|,  |  /==/-  /\ - \|==|  /\ , ||==|- |\==\.       /
+ *               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
+ *               `--`---'   `--`        `--`./  `--``--`-`
+ *
+ *	@(#)Copyright (c) 2024, Nathan D. Fisher.
+ *
+ *      This is free software.  It comes with NO WARRANTY.
+ *      Permission to use, modify and distribute this source code
+ *      is granted subject to the following conditions.
+ *      1/ that the above copyright notice and this notice
+ *      are preserved in all copies and that due credit be given
+ *      to the author.
+ *      2/ that any changes to this code are clearly commented
+ *      as such so that the author does not get blamed for bugs
+ *      other than his own.
+ */
+
 #ifndef LIBEPOCH_H
 #define LIBEPOCH_H 1
 
 #include <stdint.h>
+#include <time.h>
 
 #define SECONDS_PER_MINUTE 60
-#define SECONDS_PER_HOUR   60 * 60
-#define SECONDS_PER_DAY    60 * 60 * 24
+#define SECONDS_PER_HOUR   3600
+#define SECONDS_PER_DAY    86400
 
 typedef enum {
     normalYear,
@@ -13,7 +46,7 @@ typedef enum {
 } yearTag;
 
 typedef struct {
-    yearTag tag;
+    yearTag  tag;
     uint32_t year;
 } Year;
 
@@ -70,7 +103,7 @@ typedef struct {
     uint8_t  hour;
     uint8_t  minute;
     uint8_t  second;
-    int64_t  microseconds;
+    int64_t  nanoseconds;
     TimeZone zone;
 } DateTime;
 
@@ -81,29 +114,40 @@ typedef enum {
     HourPrecision,
     MinutePrecision,
     SecondPrecision,
-    MicrosecondPrecision,
+    NanoSecondPrecision,
 } datetimePrecision;
 
-void yearNew(Year *year, int32_t inner);
-uint16_t yearGetDays(Year *year);
-int64_t yearGetSeconds(Year *year);
-int32_t yearGetInner(Year *year);
-void yearIncrement(Year *year);
-void yearDecrement(Year *year);
+void        yearNew                     (Year *self, int32_t inner);
+uint16_t    yearGetDays                 (Year *self);
+int64_t     yearGetSeconds              (Year *self);
+int32_t     yearGetInner                (Year *self);
+void        yearIncrement               (Year *self);
+void        yearDecrement               (Year *self);
 
-uint8_t monthGetDays(Month month, Year *year);
-uint32_t monthGetSeconds(Month month, Year *year);
-int monthIncrement(Month *month);
-int monthDecrement(Month *month);
-const char* monthName(Month month);
-const char* monthAbbr(Month month);
-int parseMonth(const char *s);
+uint8_t     monthGetDays                (Month  self, Year *year);
+uint32_t    monthGetSeconds             (Month  self, Year *year);
+int         monthIncrement              (Month *self);
+int         monthDecrement              (Month *self);
+const char* monthName                   (Month  self);
+const char* monthAbbr                   (Month  self);
+int         parseMonth                  (const char *s);
 
-const char* weekdayName(Weekday day);
-const char* weekdayAbbr(Weekday day);
-int parseWeekday(const char *s);
+const char* weekdayName                 (Weekday self);
+const char* weekdayAbbr                 (Weekday self);
+int         parseWeekday                (const char *s);
 
-int offsetNew(TzOffset *offs, offsetSign sign, uint8_t hours, uint8_t minutes);
-void printTz(TimeZone *zone);
+int         offsetNew                   (TzOffset *self, offsetSign sign,
+                                         uint8_t hours, uint8_t minutes);
+void        printTz                     (TimeZone *self);
+int64_t     timezoneAsSeconds           (TimeZone *self);
+
+int32_t     dateTimeGetYear             (DateTime *self);
+int64_t     dateTimeGetTimestampNaive   (DateTime *self);
+int64_t     dateTimeGetTimestamp        (DateTime *self);
+void        dateTimeGetTimespec         (DateTime *self, struct timespec *ts);
+Weekday     dateTimeGetWeekday          (DateTime *self);
+void        dateTimeFromTimestampParts  (DateTime *self, int64_t seconds,
+                                         int64_t nanoseconds);
+void        dateTimeFromTimespec        (DateTime *self, struct timespec *ts);
 
 #endif // !LIBEPOCH_H

month.c

@@ -1,11 +1,43 @@
+/*                 _,.---._    .-._        .--.-. ,--.--------.
+ *   _,..---._   ,-.' , -  `. /==/ \  .-._/==/  //==/,  -   , -\
+ * /==/,   -  \ /==/_,  ,  - \|==|, \/ /, |==\ -\\==\.-.  - ,-./
+ * |==|   _   _\==|   .=.     |==|-  \|  | \==\- \`--`\==\- \
+ * |==|  .=.   |==|_ : ;=:  - |==| ,  | -|  `--`-'     \==\_ \
+ * |==|,|   | -|==| , '='     |==| -   _ |             |==|- |
+ * |==|  '='   /\==\ -    ,_ /|==|  /\ , |             |==|, |
+ * |==|-,   _`/  '.='. -   .' /==/, | |- |             /==/ -/
+ * `-.`.____.'     `--`--''   `--`./  `--`             `--`--`
+ *                    _ __    ,---.      .-._         .=-.-.  _,.----.
+ *                 .-`.' ,`..--.'  \    /==/ \  .-._ /==/_ /.' .' -   \
+ *                /==/, -   \==\-/\ \   |==|, \/ /, /==|, |/==/  ,  ,-'
+ *               |==| _ .=. /==/-|_\ |  |==|-  \|  ||==|  ||==|-   |  .
+ *               |==| , '=',\==\,   - \ |==| ,  | -||==|- ||==|_   `-' \
+ *               |==|-  '..'/==/ -   ,| |==| -   _ ||==| ,||==|   _  , |
+ *               |==|,  |  /==/-  /\ - \|==|  /\ , ||==|- |\==\.       /
+ *               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
+ *               `--`---'   `--`        `--`./  `--``--`-`
+ *
+ *	@(#)Copyright (c) 2024, Nathan D. Fisher.
+ *
+ *      This is free software.  It comes with NO WARRANTY.
+ *      Permission to use, modify and distribute this source code
+ *      is granted subject to the following conditions.
+ *      1/ that the above copyright notice and this notice
+ *      are preserved in all copies and that due credit be given
+ *      to the author.
+ *      2/ that any changes to this code are clearly commented
+ *      as such so that the author does not get blamed for bugs
+ *      other than his own.
+ */
+
 #include <stdint.h>
 #include <stddef.h>  // NULL
 #include <string.h>  // memcmp
 #include <strings.h>
 #include "epoch.h"
 
-uint8_t monthGetDays(Month month, Year *year) {
-    switch (month) {
+uint8_t monthGetDays(Month self, Year *year) {
+    switch (self) {
     case January:
     case March:
     case May:
@@ -26,23 +58,23 @@ uint8_t monthGetDays(Month month, Year *year) {
     }
 }
 
-uint32_t monthGetSeconds(Month month, Year *year) {
-    return (int64_t)monthGetDays(month, year) * SECONDS_PER_DAY;
+uint32_t monthGetSeconds(Month self, Year *year) {
+    return (int64_t)monthGetDays(self, year) * SECONDS_PER_DAY;
 }
 
-int monthIncrement(Month *month) {
-    if (*month == December)
+int monthIncrement(Month *self) {
+    if (*self == December)
         return 1;
     else
-        *month += 1;
+        *self += 1;
     return 0;
 }
 
-int monthDecrement(Month *month) {
-    if (*month == January)
+int monthDecrement(Month *self) {
+    if (*self == January)
         return  1;
     else
-        *month -= 1;
+        *self -= 1;
     return 0;
 }
 
@@ -51,12 +83,12 @@ const char *MonthNames[] = { "January", "February", "March", "April", "May", "Ju
 const char *MonthAbbrs[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul",
     "Aug", "Sep", "Oct", "Nov", "Dec" };
 
-const char* monthName(Month month) {
-    return MonthNames[month - 1];
+const char* monthName(Month self) {
+    return MonthNames[self - 1];
 }
 
-const char* monthAbbr(Month month) {
-    return MonthAbbrs[month - 1];
+const char* monthAbbr(Month self) {
+    return MonthAbbrs[self - 1];
 }
 
 int parseMonth(const char *s) {

test/Makefile

@@ -17,7 +17,7 @@
 #               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'  
 #               `--`---'   `--`        `--`./  `--``--`-`
 #
-#	@(#)Copyright (c) 2023, Nathan D. Fisher.
+#	@(#)Copyright (c) 2024, Nathan D. Fisher.
 #
 #      This is free software.  It comes with NO WARRANTY.
 #      Permission to use, modify and distribute this source code
@@ -33,74 +33,19 @@
 include ../config.mk
 
 CFLAGS     += -I../include
-LDLIBS     += ../libhaggis.a
+LDLIBS     += ../libepoch.a
 LDLIBS     += $(LIBS)
 
-tests      += store_u16
-tests      += load_u16
-tests      += store_u32
-tests      += load_u32
-tests      += store_u64
-tests      += load_u64
-tests      += store_header
-tests      += check_header
-tests      += store_device
-tests      += load_device
-tests      += store_md5
-tests      += load_md5
-tests      += store_sha1
-tests      += load_sha1
-tests      += store_sha256
-tests      += load_sha256
-tests      += init_file_md5
-tests      += init_file_sha1
-tests      += init_file_sha256
-tests      += store_file_md5
-tests      += load_file_md5
-tests      += store_file_sha1
-tests      += load_file_sha1
-tests      += store_file_sha256
-tests      += load_file_sha256
-tests      += fnv1a_hash_inode
-tests      += fnv1a_hash_str
-tests      += linkmap_init
-tests      += linkmap_put
-tests      += create_dir_node
-tests      += create_symlink_node
-tests      += create_fifo_node
-tests      += create_dev_node
-tests      += create_file_node
-tests      += mq_push_pop
-tests      += extract_dev_node
-tests      += extract_dir_node
-tests      += extract_fifo_node
-tests      += extract_file_node
-tests      += extract_symlink_node
-tests      += extract_hardlink_node
+tests      += dt2ts
+tests      += dt2timespec
+tests      += dtfromtimespec
+tests      += parsemonth
 
 total      != echo $(tests) | wc -w | awk '{ print $$1 }'
 
 .PHONY: test
-test: $(tests) output
-	@echo -e "\n\t=== \e[0;33mRunning $(total) tests\e[0m ===\n"
-	@idx=1 ; success=0 ; fail=0; skip=0; for t in $(tests) ; \
-		do printf "[%02i/$(total)] %-25s" $${idx} $${t} ; \
-		idx=$$(expr $${idx} + 1) ; \
-		./$${t} ; \
-		retval=$$? ; \
-		if [ $${retval} -eq 0 ] ; \
-		then echo -e '\e[0;32mSuccess\e[0m' ; \
-		success=$$(expr $${success} + 1) ; \
-		elif [ $${retval} -eq 255 ] ; \
-		then echo Skipped ; \
-		skip=$$(expr $${skip} + 1) ; \
-		else echo -e '\e[0;31mFailure\e[0m' ; \
-		fail=$$(expr $${fail} + 1) ; \
-		fi ; done || true ; \
-		if [ $${fail} == 0 ] ; \
-		then echo -e '\nResults: \e[0;32mOk\e[0m.' "$${success} succeeded; $${fail} failed; $${skip} skipped" ; \
-		else echo -e '\nResults: \e[0;31mFAILED\e[0m.' "$${success} succeeded; $${fail} failed; $${skip} skipped" ; \
-		fi
+test: $(tests) runner output
+	./runner $(tests)
 
 output:
 	@ [-d $@ ] 2>/dev/null || install -d $@

test/dt2timespec.c

@@ -0,0 +1,23 @@
+#include "epoch.h"
+#include <assert.h>
+#include <stdint.h>
+#include <time.h>
+
+DateTime dt;
+struct timespec ts;
+
+int main() {
+    dt.zone.tag = UTC;
+    yearNew(&dt.year, 2024);
+    dt.month = February;
+    dt.day = 6;
+    dt.hour = 9;
+    dt.minute = 28;
+    dt.second = 42;
+    dt.nanoseconds = 42;
+    dateTimeGetTimespec(&dt, &ts);
+    assert(ts.tv_sec == 1707211722);
+    assert(ts.tv_nsec == 42);
+
+    return 0;
+}

test/dt2ts.c

@@ -0,0 +1,21 @@
+#include "epoch.h"
+#include <assert.h>
+#include <stdint.h>
+
+DateTime dt;
+int64_t  ts;
+
+int main() {
+    dt.zone.tag = UTC;
+    yearNew(&dt.year, 2024);
+    dt.month = February;
+    dt.day = 6;
+    dt.hour = 9;
+    dt.minute = 28;
+    dt.second = 42;
+    dt.nanoseconds = 42;
+    ts = dateTimeGetTimestamp(&dt);
+    assert(ts == 1707211722);
+
+    return 0;
+}

test/dtfromtimespec.c

@@ -0,0 +1,21 @@
+#include "epoch.h"
+#include <assert.h>
+#include <time.h>
+
+int main() {
+    struct timespec ts;
+    DateTime dt;
+
+    ts.tv_nsec = 42;
+    ts.tv_sec  = 1706571482;
+    dateTimeFromTimespec(&dt, &ts);
+    assert(dt.year.year == 2024);
+    assert(dt.month == January);
+    assert(dt.day == 29);
+    assert(dt.hour == 23);
+    assert(dt.minute == 38);
+    assert(dt.second == 02);
+    assert(dt.nanoseconds == 42);
+    assert(dt.zone.tag == UTC);
+    return 0;
+}

test/parsemonth.c

@@ -0,0 +1,11 @@
+#include "epoch.h"
+#include <assert.h>
+
+int main() {
+    Month m = parseMonth("February");
+    assert(m == February);
+    m = parseMonth("nov");
+    assert(m == November);
+    m = parseMonth("MARCH");
+    assert(m == March);
+}

test/runner.c

@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char *argv[]) {
+    int i, pass = 0, fail = 0, skip = 0, total, ret, read = 0;
+    FILE *pipe;
+    char cmd[100], output[500];
+
+    total = argc-1;
+    printf("\n\t=== \033[0;33mRunning %i tests\033[0m ===\n", total);
+    for (i = 1; i < argc; i++) {
+        snprintf(cmd, 100, "./%s", argv[i]);
+        printf("%-25s", argv[i]);
+        pipe = popen(cmd, "w");
+        read = fread(&output, 1, 500, pipe);
+        ret = pclose(pipe);
+        if (read) {
+            fail++;
+            printf("\033[0;31mFailed\033[0m\n");
+            fprintf(stderr, "%s\n", &output);
+            continue;
+        }
+        switch (WEXITSTATUS(ret)) {
+            case 0:
+                pass++;
+                printf("\033[0;32mSuccess\033[0m\n");
+                break;
+            case 255:
+                skip++;
+                printf("Skipped\n");
+                break;
+            default:
+                fail++;
+                printf("\033[0;31mFailed\033[0m\n");
+        }
+    }
+    if (fail) {
+        printf("\nResults: \033[0;31mFAILED\033[0m %i succeeded; %i failed; %i skipped\n",
+               pass, fail, skip);
+    } else {
+        printf("\nResults: \033[0;32mOk\033[0m %i succeeded; %i failed; %i skipped\n",
+               pass, fail, skip);
+    }
+    return 0;
+}

weekday.c

@@ -1,3 +1,35 @@
+/*                 _,.---._    .-._        .--.-. ,--.--------.
+ *   _,..---._   ,-.' , -  `. /==/ \  .-._/==/  //==/,  -   , -\
+ * /==/,   -  \ /==/_,  ,  - \|==|, \/ /, |==\ -\\==\.-.  - ,-./
+ * |==|   _   _\==|   .=.     |==|-  \|  | \==\- \`--`\==\- \
+ * |==|  .=.   |==|_ : ;=:  - |==| ,  | -|  `--`-'     \==\_ \
+ * |==|,|   | -|==| , '='     |==| -   _ |             |==|- |
+ * |==|  '='   /\==\ -    ,_ /|==|  /\ , |             |==|, |
+ * |==|-,   _`/  '.='. -   .' /==/, | |- |             /==/ -/
+ * `-.`.____.'     `--`--''   `--`./  `--`             `--`--`
+ *                    _ __    ,---.      .-._         .=-.-.  _,.----.
+ *                 .-`.' ,`..--.'  \    /==/ \  .-._ /==/_ /.' .' -   \
+ *                /==/, -   \==\-/\ \   |==|, \/ /, /==|, |/==/  ,  ,-'
+ *               |==| _ .=. /==/-|_\ |  |==|-  \|  ||==|  ||==|-   |  .
+ *               |==| , '=',\==\,   - \ |==| ,  | -||==|- ||==|_   `-' \
+ *               |==|-  '..'/==/ -   ,| |==| -   _ ||==| ,||==|   _  , |
+ *               |==|,  |  /==/-  /\ - \|==|  /\ , ||==|- |\==\.       /
+ *               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
+ *               `--`---'   `--`        `--`./  `--``--`-`
+ *
+ *	@(#)Copyright (c) 2024, Nathan D. Fisher.
+ *
+ *      This is free software.  It comes with NO WARRANTY.
+ *      Permission to use, modify and distribute this source code
+ *      is granted subject to the following conditions.
+ *      1/ that the above copyright notice and this notice
+ *      are preserved in all copies and that due credit be given
+ *      to the author.
+ *      2/ that any changes to this code are clearly commented
+ *      as such so that the author does not get blamed for bugs
+ *      other than his own.
+ */
+
 #include "epoch.h"
 #include <strings.h>
 

year.c

@@ -1,16 +1,48 @@
+/*                 _,.---._    .-._        .--.-. ,--.--------.
+ *   _,..---._   ,-.' , -  `. /==/ \  .-._/==/  //==/,  -   , -\
+ * /==/,   -  \ /==/_,  ,  - \|==|, \/ /, |==\ -\\==\.-.  - ,-./
+ * |==|   _   _\==|   .=.     |==|-  \|  | \==\- \`--`\==\- \
+ * |==|  .=.   |==|_ : ;=:  - |==| ,  | -|  `--`-'     \==\_ \
+ * |==|,|   | -|==| , '='     |==| -   _ |             |==|- |
+ * |==|  '='   /\==\ -    ,_ /|==|  /\ , |             |==|, |
+ * |==|-,   _`/  '.='. -   .' /==/, | |- |             /==/ -/
+ * `-.`.____.'     `--`--''   `--`./  `--`             `--`--`
+ *                    _ __    ,---.      .-._         .=-.-.  _,.----.
+ *                 .-`.' ,`..--.'  \    /==/ \  .-._ /==/_ /.' .' -   \
+ *                /==/, -   \==\-/\ \   |==|, \/ /, /==|, |/==/  ,  ,-'
+ *               |==| _ .=. /==/-|_\ |  |==|-  \|  ||==|  ||==|-   |  .
+ *               |==| , '=',\==\,   - \ |==| ,  | -||==|- ||==|_   `-' \
+ *               |==|-  '..'/==/ -   ,| |==| -   _ ||==| ,||==|   _  , |
+ *               |==|,  |  /==/-  /\ - \|==|  /\ , ||==|- |\==\.       /
+ *               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
+ *               `--`---'   `--`        `--`./  `--``--`-`
+ *
+ *	@(#)Copyright (c) 2024, Nathan D. Fisher.
+ *
+ *      This is free software.  It comes with NO WARRANTY.
+ *      Permission to use, modify and distribute this source code
+ *      is granted subject to the following conditions.
+ *      1/ that the above copyright notice and this notice
+ *      are preserved in all copies and that due credit be given
+ *      to the author.
+ *      2/ that any changes to this code are clearly commented
+ *      as such so that the author does not get blamed for bugs
+ *      other than his own.
+ */
+
 #include <stdint.h>
 #include "epoch.h"
 
-void yearNew(Year *year, int32_t inner) {
-    year->year = inner;
+void yearNew(Year *self, int32_t inner) {
+    self->year = inner;
     if (inner % 4 == 0 && (inner % 100 != 0 || inner % 400 == 0))
-        year->tag = leapYear;
+        self->tag = leapYear;
     else
-        year->tag = normalYear;
+        self->tag = normalYear;
 }
 
-uint16_t yearGetDays(Year *year) {
-    switch (year->tag) {
+uint16_t yearGetDays(Year *self) {
+    switch (self->tag) {
         case normalYear:
             return 365;
         case leapYear:
@@ -20,26 +52,26 @@ uint16_t yearGetDays(Year *year) {
     }
 }
 
-int64_t yearGetSeconds(Year *year) {
-    return (int64_t)yearGetDays(year) * SECONDS_PER_DAY;
+int64_t yearGetSeconds(Year *self) {
+    return (int64_t)yearGetDays(self) * SECONDS_PER_DAY;
 }
 
-int32_t yearGetInner(Year *year) {
-    return year->year;
+int32_t yearGetInner(Year *self) {
+    return self->year;
 }
 
-void yearIncrement(Year *year) {
-    year->year += 1;
-    if (year->year % 4 == 0 && (year->year % 100 != 0 || year->year % 400 == 0))
-        year->tag = leapYear;
+void yearIncrement(Year *self) {
+    self->year += 1;
+    if (self->year % 4 == 0 && (self->year % 100 != 0 || self->year % 400 == 0))
+        self->tag = leapYear;
     else
-        year->tag = normalYear;
+        self->tag = normalYear;
 }
 
-void yearDecrement(Year *year) {
-    year->year -= 1;
-    if (year->year % 4 == 0 && (year->year % 100 != 0 || year->year % 400 == 0))
-        year->tag = leapYear;
+void yearDecrement(Year *self) {
+    self->year -= 1;
+    if (self->year % 4 == 0 && (self->year % 100 != 0 || self->year % 400 == 0))
+        self->tag = leapYear;
     else
-        year->tag = normalYear;
+        self->tag = normalYear;
 }

zone.c

@@ -1,3 +1,35 @@
+/*                 _,.---._    .-._        .--.-. ,--.--------.
+ *   _,..---._   ,-.' , -  `. /==/ \  .-._/==/  //==/,  -   , -\
+ * /==/,   -  \ /==/_,  ,  - \|==|, \/ /, |==\ -\\==\.-.  - ,-./
+ * |==|   _   _\==|   .=.     |==|-  \|  | \==\- \`--`\==\- \
+ * |==|  .=.   |==|_ : ;=:  - |==| ,  | -|  `--`-'     \==\_ \
+ * |==|,|   | -|==| , '='     |==| -   _ |             |==|- |
+ * |==|  '='   /\==\ -    ,_ /|==|  /\ , |             |==|, |
+ * |==|-,   _`/  '.='. -   .' /==/, | |- |             /==/ -/
+ * `-.`.____.'     `--`--''   `--`./  `--`             `--`--`
+ *                    _ __    ,---.      .-._         .=-.-.  _,.----.
+ *                 .-`.' ,`..--.'  \    /==/ \  .-._ /==/_ /.' .' -   \
+ *                /==/, -   \==\-/\ \   |==|, \/ /, /==|, |/==/  ,  ,-'
+ *               |==| _ .=. /==/-|_\ |  |==|-  \|  ||==|  ||==|-   |  .
+ *               |==| , '=',\==\,   - \ |==| ,  | -||==|- ||==|_   `-' \
+ *               |==|-  '..'/==/ -   ,| |==| -   _ ||==| ,||==|   _  , |
+ *               |==|,  |  /==/-  /\ - \|==|  /\ , ||==|- |\==\.       /
+ *               /==/ - |  \==\ _.\=\.-'/==/, | |- |/==/. / `-.`.___.-'
+ *               `--`---'   `--`        `--`./  `--``--`-`
+ *
+ *	@(#)Copyright (c) 2024, Nathan D. Fisher.
+ *
+ *      This is free software.  It comes with NO WARRANTY.
+ *      Permission to use, modify and distribute this source code
+ *      is granted subject to the following conditions.
+ *      1/ that the above copyright notice and this notice
+ *      are preserved in all copies and that due credit be given
+ *      to the author.
+ *      2/ that any changes to this code are clearly commented
+ *      as such so that the author does not get blamed for bugs
+ *      other than his own.
+ */
+
 #include "epoch.h"
 #include <stdio.h>
 #include <stdint.h>