672e12255d
rand(3)'s standard C API is extremely limiting, but we can do better than the historical 32-bit state Park-Miller LCG we've shipped since 2001: r73156. The justification provided at the time for not using random(3) was that rand_r(3) could not be made to use the same algorithm. That is still true. However, the irrelevance of rand_r(3) is increasingly obvious. Since that time, POSIX has marked the interface obsolescent. rand_r(3) never became part of the standard C library. If not for API compatibility reasons, I would just remove rand_r(3) entirely. So, I do not believe it is a problem for rand_r(3) and rand(3) to diverge. The 12 ABI is maintained with compatibility definitions, but this revision does subtly change the API of rand(3). The sequences of pseudorandom numbers produced in programs built against new versions of libc will differ from programs built against prior versions of libc. Reviewed by: kevans, markm MFC after: no Relnotes: yes Differential Revision: https://reviews.freebsd.org/D23290
137 lines
1.4 KiB
Plaintext
137 lines
1.4 KiB
Plaintext
/*
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* $FreeBSD$
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*/
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FBSD_1.0 {
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_Exit;
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a64l;
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abort;
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abs;
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atexit;
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__cxa_atexit;
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__cxa_finalize;
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atof;
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atoi;
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atol;
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atoll;
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bsearch;
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div;
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__isthreaded;
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exit;
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getenv;
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opterr;
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optind;
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optopt;
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optreset;
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optarg;
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getopt;
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getopt_long;
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getopt_long_only;
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suboptarg;
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getsubopt;
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grantpt;
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ptsname;
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unlockpt;
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hcreate;
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hdestroy;
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hsearch;
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heapsort;
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imaxabs;
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imaxdiv;
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insque;
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l64a;
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l64a_r;
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labs;
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ldiv;
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llabs;
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lldiv;
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lsearch;
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lfind;
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mergesort;
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putenv;
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qsort_r;
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qsort;
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radixsort;
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sradixsort;
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rand_r;
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srandom;
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srandomdev;
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initstate;
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setstate;
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random;
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reallocf;
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realpath;
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remque;
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setenv;
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unsetenv;
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strfmon;
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strtoimax;
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strtol;
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strtoll;
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strtonum;
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strtoq;
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strtoul;
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strtoull;
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strtoumax;
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strtouq;
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system;
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tdelete;
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tfind;
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tsearch;
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twalk;
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};
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FBSD_1.3 {
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at_quick_exit;
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atof_l;
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atoi_l;
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atol_l;
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atoll_l;
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quick_exit;
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strtod_l;
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strtof_l;
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strtoimax_l;
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strtol_l;
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strtold_l;
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strtoll_l;
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strtoq_l;
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strtoul_l;
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strtoull_l;
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strtoumax_l;
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strtouq_l;
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};
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FBSD_1.4 {
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atexit_b;
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bsearch_b;
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heapsort_b;
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mergesort_b;
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qsort_b;
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hcreate_r;
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hdestroy_r;
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hsearch_r;
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reallocarray;
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};
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FBSD_1.5 {
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__cxa_thread_atexit;
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__cxa_thread_atexit_impl;
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abort_handler_s;
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ignore_handler_s;
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set_constraint_handler_s;
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};
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FBSD_1.6 {
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qsort_s;
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rand;
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srand;
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};
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FBSDprivate_1.0 {
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__system;
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_system;
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__libc_system;
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__cxa_thread_call_dtors;
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__libc_atexit;
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};
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