cosmopolitan/libc/time/ctime.c

#include "libc/calls/weirdtypes.h"
#include "libc/time/struct/tm.h"
#include "libc/time/time.h"

/**
 * Represents time as string.
 * @threadunsafe
 */
char *ctime(const time_t *timep) {
  /*
  ** Section 4.12.3.2 of X3.159-1989 requires that
  **	The ctime function converts the calendar time pointed to by timer
  **	to local time in the form of a string. It is equivalent to
  **		asctime(localtime(timer))
  */
  struct tm *tmp = localtime(timep);
  return tmp ? asctime(tmp) : NULL;
}
Make improvements - Add hierarchical auto-completion to redbean's repl - Fetch latest localtime() and strftime() from Eggert - Shave a few milliseconds off redbean start latency - Fix redbean repl with multi-line statements - Make the Lua unix module code more elegant - Harden Lua data structure serialization 2022-04-27 12:39:39 +00:00			`#include "libc/calls/weirdtypes.h"`
Fix Landlock Make so it can read pattern rule vars It turned out that specifying all SRCS and INCS as dependencies on the pattern rules for all headers, caused `make` memory usage to skyrocket from 40mb ot 160mb. This change also reduces the build graph another 4%. 2022-08-14 00:20:50 +00:00			`#include "libc/time/struct/tm.h"`
Initial import 2020-06-15 14:18:57 +00:00			`#include "libc/time/time.h"`

Make improvements - This change fixes a bug that allowed unbuffered printf() output (to streams like stderr) to be truncated. This regression was introduced some time between now and the last release. - POSIX specifies all functions as thread safe by default. This change works towards cleaning up our use of the @threadsafe / @threadunsafe documentation annotations to reflect that. The goal is (1) to use @threadunsafe to document functions which POSIX say needn't be thread safe, and (2) use @threadsafe to document functions that we chose to implement as thread safe even though POSIX didn't mandate it. - Tidy up the clock_gettime() implementation. We're now trying out a cleaner approach to system call support that aims to maintain the Linux errno convention as long as possible. This also fixes bugs that existed previously, where the vDSO errno wasn't being translated properly. The gettimeofday() system call is now a wrapper for clock_gettime(), which reduces bloat in apps that use both. - The recently-introduced improvements to the execute bit on Windows has had bugs fixed. access(X_OK) on a directory on Windows now succeeds. fstat() will now perform the MZ/#! ReadFile() operation correctly. - Windows.h is no longer included in libc/isystem/, because it confused PCRE's build system into thinking Cosmopolitan is a WIN32 platform. Cosmo's Windows.h polyfill was never even really that good, since it only defines a subset of the subset of WIN32 APIs that Cosmo defines. - The setlongerjmp() / longerjmp() APIs are removed. While they're nice APIs that are superior to the standardized setjmp / longjmp functions, they weren't superior enough to not be dead code in the monorepo. If you use these APIs, please file an issue and they'll be restored. - The .com appending magic has now been removed from APE Loader. 2023-10-03 02:25:19 +00:00			`/**`
			`* Represents time as string.`
			`* @threadunsafe`
			`*/`
Make improvements - Add hierarchical auto-completion to redbean's repl - Fetch latest localtime() and strftime() from Eggert - Shave a few milliseconds off redbean start latency - Fix redbean repl with multi-line statements - Make the Lua unix module code more elegant - Harden Lua data structure serialization 2022-04-27 12:39:39 +00:00			`char ctime(const time_t timep) {`
			`/*`
			`** Section 4.12.3.2 of X3.159-1989 requires that`
			`** The ctime function converts the calendar time pointed to by timer`
			`** to local time in the form of a string. It is equivalent to`
			`** asctime(localtime(timer))`
			`*/`
			`struct tm *tmp = localtime(timep);`
			`return tmp ? asctime(tmp) : NULL;`
			`}`