31 lines
742 B
C
31 lines
742 B
C
#pragma once
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#include <time.h>
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#include <sys/time.h>
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typedef struct timeval Time;
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static OptionalText_t _local_timezone = NONE_TEXT;
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static INLINE Text_t num_format(long n, const char *unit)
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{
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if (n == 0)
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return Text("now");
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return Text$format((n == 1 || n == -1) ? "%ld %s %s" : "%ld %ss %s", n < 0 ? -n : n, unit, n < 0 ? "ago" : "later");
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}
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static void set_local_timezone(Text_t tz)
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{
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setenv("TZ", Text$as_c_string(tz), 1);
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_local_timezone = tz;
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tzset();
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}
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#define WITH_TIMEZONE(tz, body) ({ if (tz.length >= 0) { \
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OptionalText_t old_timezone = _local_timezone; \
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set_local_timezone(tz); \
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body; \
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set_local_timezone(old_timezone); \
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} else { \
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body; \
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}})
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