From 754bbf7a25a8dda49b5d08ef0d0443bbf5af0e36 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Sun, 7 Apr 2024 13:41:34 -0500 Subject: new repository --- devdocs/c/chrono%2Ftimespec.html | 43 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 devdocs/c/chrono%2Ftimespec.html (limited to 'devdocs/c/chrono%2Ftimespec.html') diff --git a/devdocs/c/chrono%2Ftimespec.html b/devdocs/c/chrono%2Ftimespec.html new file mode 100644 index 00000000..f799f3a3 --- /dev/null +++ b/devdocs/c/chrono%2Ftimespec.html @@ -0,0 +1,43 @@ +

timespec

Defined in header <time.h> 
struct timespec;
+		 (since C11)

Structure holding an interval broken down into seconds and nanoseconds.

+

Member objects

+ +
time_t tv_sec whole seconds (valid values are >= 0)
/* see below */ tv_nsec nanoseconds (valid values are [0, 999999999])
+ + + +

The type of tv_nsec is long.

+		 (until C23)

The type of tv_nsec is an implementation-defined signed integer type that can represent integers in [0, 999999999].

+		 (since C23)

The declaration order of tv_sec and tv_nsec is unspecified. Implementation may add other members to struct timespec.

+

Notes

The type of tv_nsec is long long on some platforms, which is conforming only since C23.

+

Example

#include <stdio.h>
+#include <time.h>
+#include <stdint.h>
+ 
+int main(void)
+{
+    struct timespec ts;
+    timespec_get(&ts, TIME_UTC);
+    char buff[100];
+    strftime(buff, sizeof buff, "%D %T", gmtime(&ts.tv_sec));
+    printf("Current time: %s.%09ld UTC\n", buff, ts.tv_nsec);
+    printf("Raw timespec.time_t: %jd\n", (intmax_t)ts.tv_sec);
+    printf("Raw timespec.tv_nsec: %09ld\n", ts.tv_nsec);
+}

Possible output:

+
Current time: 11/24/21 03:10:50.408191283 UTC
+Raw timespec.time_t: 1637723450
+Raw timespec.tv_nsec: 408191283

References

See also

+ + +
+
(C11)
 returns the calendar time in seconds and nanoseconds based on a given time base
(function)
calendar time type
(struct)
C++ documentation for timespec
+

+ © cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
+ https://en.cppreference.com/w/c/chrono/timespec +

+
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