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stdlib.hfa @ 7d0ebd0

ADTast-experimentalenumforall-pointer-decaypthread-emulationqualifiedEnum

Last change on this file since 7d0ebd0 was aa0a1ad, checked in by Peter A. Buhr <pabuhr@…>, 2 years ago
remove macro ARRAY_ALLOC$ and expand inline, remove unnecessary void * casts
Property mode set to `100644`
File size: 17.1 KB

Rev	Line
[bd85400]	1	//
	2	// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
	3	//
	4	// The contents of this file are covered under the licence agreement in the
	5	// file "LICENCE" distributed with Cforall.
	6	//
[bb82c03]	7	// stdlib --
[bd85400]	8	//
	9	// Author : Peter A. Buhr
	10	// Created On : Thu Jan 28 17:12:35 2016
[b89c7c2]	11	// Last Modified By : Peter A. Buhr
[aa0a1ad]	12	// Last Modified On : Sun Jan 2 22:53:57 2022
	13	// Update Count : 594
[bd85400]	14	//
	15
[53a6c2a]	16	#pragma once
[17e5e2b]	17
[94429f8]	18	#include "bits/defs.hfa" // OPTIONAL_THREAD
	19	#include "bits/align.hfa" // libAlign
[2026bb6]	20
[d46ed6e]	21	#include <stdlib.h> // alloc, strto, ato*
[4e7c0fc0]	22	#include <heap.hfa>
[d6b03b7]	23
[ca7949b]	24	// Reduce includes by explicitly defining these routines.
[3ce0d440]	25	extern "C" {
[4e7c0fc0]	26	void * memalign( size_t alignment, size_t size ); // malloc.h
	27	void * pvalloc( size_t size ); // malloc.h
[b9c04946]	28	void * memset( void * dest, int fill, size_t size ); // string.h
[57fc7d8]	29	void * memcpy( void * dest, const void * src, size_t size ); // string.h
[3ce0d440]	30	} // extern "C"
[e672372]	31
[bd85400]	32	//---------------------------------------
	33
[45161b4d]	34	#ifndef EXIT_FAILURE
	35	#define EXIT_FAILURE 1 // failing exit status
	36	#define EXIT_SUCCESS 0 // successful exit status
	37	#endif // ! EXIT_FAILURE
	38
	39	//---------------------------------------
	40
[c354108]	41	#include "common.hfa"
	42
	43	//---------------------------------------
	44
[fd54fef]	45	static inline forall( T & \| sized(T) ) {
[4803a901]	46	// CFA safe equivalents, i.e., implicit size specification
[3ce0d440]	47
[74b19fb]	48	T * malloc( void ) {
[aa0a1ad]	49	if ( _Alignof(T) <= libAlign() ) return (T *)malloc( sizeof(T) ); // C allocation
[68f0c4e]	50	else return (T *)memalign( _Alignof(T), sizeof(T) );
[74b19fb]	51	} // malloc
	52
[856fe3e]	53	T * aalloc( size_t dim ) {
[aa0a1ad]	54	if ( _Alignof(T) <= libAlign() ) return (T *)aalloc( dim, sizeof(T) ); // C allocation
	55	else return (T *)amemalign( _Alignof(T), dim, sizeof(T) );
[856fe3e]	56	} // aalloc
	57
[74b19fb]	58	T * calloc( size_t dim ) {
[aa0a1ad]	59	if ( _Alignof(T) <= libAlign() ) return (T *)calloc( dim, sizeof(T) ); // C allocation
	60	else return (T *)cmemalign( _Alignof(T), dim, sizeof(T) );
[74b19fb]	61	} // calloc
	62
[b89c7c2]	63	T * resize( T * ptr, size_t size ) { // CFA resize, eliminate return-type cast
[aa0a1ad]	64	if ( _Alignof(T) <= libAlign() ) return (T )resize( (void )ptr, size ); // CFA resize
	65	else return (T )resize( (void )ptr, _Alignof(T), size ); // CFA resize
[856fe3e]	66	} // resize
	67
[d74369b]	68	T * realloc( T * ptr, size_t size ) { // CFA realloc, eliminate return-type cast
[aa0a1ad]	69	if ( _Alignof(T) <= libAlign() ) return (T )realloc( (void )ptr, size ); // C realloc
	70	else return (T )realloc( (void )ptr, _Alignof(T), size ); // CFA realloc
[74b19fb]	71	} // realloc
	72
	73	T * memalign( size_t align ) {
[cafb687]	74	return (T *)memalign( align, sizeof(T) ); // C memalign
[74b19fb]	75	} // memalign
	76
[856fe3e]	77	T * amemalign( size_t align, size_t dim ) {
	78	return (T *)amemalign( align, dim, sizeof(T) ); // CFA amemalign
	79	} // amemalign
	80
[d74369b]	81	T * cmemalign( size_t align, size_t dim ) {
	82	return (T *)cmemalign( align, dim, sizeof(T) ); // CFA cmemalign
	83	} // cmemalign
	84
[74b19fb]	85	T * aligned_alloc( size_t align ) {
[cafb687]	86	return (T *)aligned_alloc( align, sizeof(T) ); // C aligned_alloc
[74b19fb]	87	} // aligned_alloc
	88
	89	int posix_memalign( T ** ptr, size_t align ) {
	90	return posix_memalign( (void **)ptr, align, sizeof(T) ); // C posix_memalign
	91	} // posix_memalign
[ada0246d]	92
	93	T * valloc( void ) {
	94	return (T *)valloc( sizeof(T) ); // C valloc
	95	} // valloc
	96
	97	T * pvalloc( void ) {
	98	return (T *)pvalloc( sizeof(T) ); // C pvalloc
	99	} // pvalloc
[55acc3a]	100	} // distribution
	101
[ceb7db8]	102	/*
	103	FIX ME : fix alloc interface after Ticker Number 214 is resolved, define and add union to S_fill. Then, modify postfix-fill functions to support T * with nmemb, char, and T object of any size. Finally, change alloc_internal.
	104	Or, just follow the instructions below for that.
	105
	106	1. Replace the current forall-block that contains defintions of S_fill and S_realloc with following:
[fd54fef]	107	forall( T & \| sized(T) ) {
[ceb7db8]	108	union U_fill { char c; T * a; T t; };
[685810e]	109	struct S_fill { char tag; U_fill(T) fill; };
[ceb7db8]	110	struct S_realloc { inline T *; };
	111	}
	112
	113	2. Replace all current postfix-fill functions with following for updated S_fill:
	114	S_fill(T) ?`fill( char a ) { S_fill(T) ret = {'c'}; ret.fill.c = a; return ret; }
	115	S_fill(T) ?`fill( T a ) { S_fill(T) ret = {'t'}; memcpy(&ret.fill.t, &a, sizeof(T)); return ret; }
	116	S_fill(T) ?`fill( T a[], size_t nmemb ) { S_fill(T) ret = {'a', nmemb}; ret.fill.a = a; return ret; }
	117
[6c5d92f]	118	3. Replace the alloc_internal$ function which is outside ttype forall-block with following function:
	119	T * alloc_internal$( void * Resize, T * Realloc, size_t Align, size_t Dim, S_fill(T) Fill) {
[ceb7db8]	120	T * ptr = NULL;
	121	size_t size = sizeof(T);
	122	size_t copy_end = 0;
	123
	124	if(Resize) {
	125	ptr = (T) (void ) resize( (int )Resize, Align, Dim size );
	126	} else if (Realloc) {
	127	if (Fill.tag != '0') copy_end = min(malloc_size( Realloc ), Dim * size);
	128	ptr = (T) (void ) realloc( (int )Realloc, Align, Dim size );
	129	} else {
	130	ptr = (T) (void ) memalign( Align, Dim * size );
	131	}
	132
	133	if(Fill.tag == 'c') {
	134	memset( (char )ptr + copy_end, (int)Fill.fill.c, Dim size - copy_end );
	135	} else if(Fill.tag == 't') {
	136	for ( int i = copy_end; i <= Dim * size - size ; i += size ) {
	137	memcpy( (char *)ptr + i, &Fill.fill.t, size );
	138	}
	139	} else if(Fill.tag == 'a') {
	140	memcpy( (char )ptr + copy_end, Fill.fill.a, min(Dim size - copy_end, size * Fill.nmemb) );
	141	}
	142
	143	return ptr;
[6c5d92f]	144	} // alloc_internal$
[ceb7db8]	145	*/
	146
	147	typedef struct S_align { inline size_t; } T_align;
	148	typedef struct S_resize { inline void *; } T_resize;
	149
[fd54fef]	150	forall( T & ) {
[ceb7db8]	151	struct S_fill { char tag; char c; size_t size; T * at; char t[50]; };
	152	struct S_realloc { inline T *; };
	153	}
	154
	155	static inline T_align ?`align ( size_t a ) { return (T_align){a}; }
	156	static inline T_resize ?`resize ( void * a ) { return (T_resize){a}; }
[74b19fb]	157
[fd54fef]	158	static inline forall( T & \| sized(T) ) {
[ceb7db8]	159	S_fill(T) ?`fill ( T t ) {
	160	S_fill(T) ret = { 't' };
	161	size_t size = sizeof(T);
[3d3d75e]	162	if ( size > sizeof(ret.t) ) {
	163	abort( "ERROR: const object of size greater than 50 bytes given for dynamic memory fill\n" );
	164	} // if
[ceb7db8]	165	memcpy( &ret.t, &t, size );
	166	return ret;
	167	}
[7a6ae53]	168	S_fill(T) ?`fill ( zero_t ) = void; // FIX ME: remove this once ticket 214 is resolved
	169	S_fill(T) ?`fill ( T * a ) { return (S_fill(T)){ 'T', '0', 0, a }; } // FIX ME: remove this once ticket 214 is resolved
[ceb7db8]	170	S_fill(T) ?`fill ( char c ) { return (S_fill(T)){ 'c', c }; }
	171	S_fill(T) ?`fill ( T a[], size_t nmemb ) { return (S_fill(T)){ 'a', '0', nmemb * sizeof(T), a }; }
	172
	173	S_realloc(T) ?`realloc ( T * a ) { return (S_realloc(T)){a}; }
	174
[6c5d92f]	175	T * alloc_internal$( void * Resize, T * Realloc, size_t Align, size_t Dim, S_fill(T) Fill ) {
[ceb7db8]	176	T * ptr = NULL;
	177	size_t size = sizeof(T);
	178	size_t copy_end = 0;
[f67b983]	179
	180	if ( Resize ) {
[68f0c4e]	181	ptr = (T) (void ) resize( (void )Resize, Align, Dim size );
[f67b983]	182	} else if ( Realloc ) {
[3d3d75e]	183	if ( Fill.tag != '0' ) copy_end = min(malloc_size( Realloc ), Dim * size );
	184	ptr = (T ) (void ) realloc( (void )Realloc, Align, Dim size );
[cfbc703d]	185	} else {
[3d3d75e]	186	ptr = (T ) (void ) memalign( Align, Dim * size );
[ceb7db8]	187	}
	188
[3d3d75e]	189	if ( Fill.tag == 'c' ) {
[ceb7db8]	190	memset( (char )ptr + copy_end, (int)Fill.c, Dim size - copy_end );
[3d3d75e]	191	} else if ( Fill.tag == 't' ) {
[191a190]	192	for ( int i = copy_end; i < Dim * size; i += size ) {
[3d3d75e]	193	#pragma GCC diagnostic push
	194	#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
[d1b70d4]	195	assert( size <= sizeof(Fill.t) );
	196	memcpy( (char *)ptr + i, &Fill.t, size );
[3d3d75e]	197	#pragma GCC diagnostic pop
[ceb7db8]	198	}
[3d3d75e]	199	} else if ( Fill.tag == 'a' ) {
[ceb7db8]	200	memcpy( (char )ptr + copy_end, Fill.at, min(Dim size - copy_end, Fill.size) );
[3d3d75e]	201	} else if ( Fill.tag == 'T' ) {
	202	memcpy( (char )ptr + copy_end, Fill.at, Dim size );
[ceb7db8]	203	}
	204
	205	return ptr;
[6c5d92f]	206	} // alloc_internal$
[ceb7db8]	207
[6c5d92f]	208	forall( TT... \| { T * alloc_internal$( void , T , size_t, size_t, S_fill(T), TT ); } ) {
[ceb7db8]	209
[6c5d92f]	210	T * alloc_internal$( void * , T * Realloc, size_t Align, size_t Dim, S_fill(T) Fill, T_resize Resize, TT rest) {
	211	return alloc_internal$( Resize, (T*)0p, Align, Dim, Fill, rest);
[ceb7db8]	212	}
	213
[6c5d92f]	214	T * alloc_internal$( void * Resize, T * , size_t Align, size_t Dim, S_fill(T) Fill, S_realloc(T) Realloc, TT rest) {
	215	return alloc_internal$( (void*)0p, Realloc, Align, Dim, Fill, rest);
[ceb7db8]	216	}
	217
[6c5d92f]	218	T * alloc_internal$( void * Resize, T * Realloc, size_t , size_t Dim, S_fill(T) Fill, T_align Align, TT rest) {
	219	return alloc_internal$( Resize, Realloc, Align, Dim, Fill, rest);
[ceb7db8]	220	}
	221
[6c5d92f]	222	T * alloc_internal$( void * Resize, T * Realloc, size_t Align, size_t Dim, S_fill(T) , S_fill(T) Fill, TT rest) {
	223	return alloc_internal$( Resize, Realloc, Align, Dim, Fill, rest);
[ceb7db8]	224	}
	225
	226	T * alloc( TT all ) {
[6c5d92f]	227	return alloc_internal$( (void)0p, (T)0p, (_Alignof(T) > libAlign() ? _Alignof(T) : libAlign()), (size_t)1, (S_fill(T)){'0'}, all);
[ceb7db8]	228	}
	229
	230	T * alloc( size_t dim, TT all ) {
[6c5d92f]	231	return alloc_internal$( (void)0p, (T)0p, (_Alignof(T) > libAlign() ? _Alignof(T) : libAlign()), dim, (S_fill(T)){'0'}, all);
[ceb7db8]	232	}
	233
	234	} // distribution TT
	235	} // distribution T
[3ce0d440]	236
[fd54fef]	237	static inline forall( T & \| sized(T) ) {
[4803a901]	238	// CFA safe initialization/copy, i.e., implicit size specification, non-array types
[b9c04946]	239	T * memset( T * dest, char fill ) {
	240	return (T *)memset( dest, fill, sizeof(T) );
[3ce0d440]	241	} // memset
	242
	243	T * memcpy( T * dest, const T * src ) {
	244	return (T *)memcpy( dest, src, sizeof(T) );
	245	} // memcpy
	246
[4803a901]	247	// CFA safe initialization/copy, i.e., implicit size specification, array types
[b9c04946]	248	T * amemset( T dest[], char fill, size_t dim ) {
	249	return (T )(void )memset( dest, fill, dim * sizeof(T) ); // C memset
	250	} // amemset
[3ce0d440]	251
[b9c04946]	252	T * amemcpy( T dest[], const T src[], size_t dim ) {
[3ce0d440]	253	return (T )(void )memcpy( dest, src, dim * sizeof(T) ); // C memcpy
[b9c04946]	254	} // amemcpy
[3ce0d440]	255	} // distribution
[f3fc631f]	256
[4803a901]	257	// CFA deallocation for multiple objects
[fd54fef]	258	static inline forall( T & ) // FIX ME, problems with 0p in list
[4803a901]	259	void free( T * ptr ) {
	260	free( (void *)ptr ); // C free
	261	} // free
[fd54fef]	262	static inline forall( T &, TT... \| { void free( TT ); } )
[4803a901]	263	void free( T * ptr, TT rest ) {
	264	free( ptr );
[94429f8]	265	free( rest );
	266	} // free
	267
[4803a901]	268	// CFA allocation/deallocation and constructor/destructor, non-array types
[fd54fef]	269	static inline forall( T & \| sized(T), TT... \| { void ?{}( T &, TT ); } )
[94429f8]	270	T * new( TT p ) {
[09ee131]	271	return &((T )malloc()){ p }; // run constructor
[94429f8]	272	} // new
	273
[fd54fef]	274	static inline forall( T & \| { void ^?{}( T & ); } )
[94429f8]	275	void delete( T * ptr ) {
[0f7a0ea]	276	// special case for 0-sized object => always call destructor
	277	if ( ptr \|\| sizeof(ptr) == 0 ) { // ignore null but not 0-sized objects
[94429f8]	278	^(*ptr){}; // run destructor
	279	} // if
[4803a901]	280	free( ptr ); // always call free
[94429f8]	281	} // delete
[fd54fef]	282	static inline forall( T &, TT... \| { void ^?{}( T & ); void delete( TT ); } )
[94429f8]	283	void delete( T * ptr, TT rest ) {
	284	delete( ptr );
	285	delete( rest );
	286	} // delete
[627f585]	287
[4803a901]	288	// CFA allocation/deallocation and constructor/destructor, array types
[fd54fef]	289	forall( T & \| sized(T), TT... \| { void ?{}( T &, TT ); } ) T * anew( size_t dim, TT p );
	290	forall( T & \| sized(T) \| { void ^?{}( T & ); } ) void adelete( T arr[] );
	291	forall( T & \| sized(T) \| { void ^?{}( T & ); }, TT... \| { void adelete( TT ); } ) void adelete( T arr[], TT rest );
[6065b3aa]	292
[bd85400]	293	//---------------------------------------
	294
[57fc7d8]	295	static inline {
[e3fea42]	296	int strto( const char sptr[], char ** eptr, int base ) { return (int)strtol( sptr, eptr, base ); }
	297	unsigned int strto( const char sptr[], char ** eptr, int base ) { return (unsigned int)strtoul( sptr, eptr, base ); }
	298	long int strto( const char sptr[], char ** eptr, int base ) { return strtol( sptr, eptr, base ); }
	299	unsigned long int strto( const char sptr[], char ** eptr, int base ) { return strtoul( sptr, eptr, base ); }
	300	long long int strto( const char sptr[], char ** eptr, int base ) { return strtoll( sptr, eptr, base ); }
	301	unsigned long long int strto( const char sptr[], char ** eptr, int base ) { return strtoull( sptr, eptr, base ); }
	302
	303	float strto( const char sptr[], char ** eptr ) { return strtof( sptr, eptr ); }
	304	double strto( const char sptr[], char ** eptr ) { return strtod( sptr, eptr ); }
	305	long double strto( const char sptr[], char ** eptr ) { return strtold( sptr, eptr ); }
[57fc7d8]	306	} // distribution
[e672372]	307
[e3fea42]	308	float _Complex strto( const char sptr[], char ** eptr );
	309	double _Complex strto( const char sptr[], char ** eptr );
	310	long double _Complex strto( const char sptr[], char ** eptr );
[bd85400]	311
[57fc7d8]	312	static inline {
[e3fea42]	313	int ato( const char sptr[] ) { return (int)strtol( sptr, 0p, 10 ); }
	314	unsigned int ato( const char sptr[] ) { return (unsigned int)strtoul( sptr, 0p, 10 ); }
	315	long int ato( const char sptr[] ) { return strtol( sptr, 0p, 10 ); }
	316	unsigned long int ato( const char sptr[] ) { return strtoul( sptr, 0p, 10 ); }
	317	long long int ato( const char sptr[] ) { return strtoll( sptr, 0p, 10 ); }
	318	unsigned long long int ato( const char sptr[] ) { return strtoull( sptr, 0p, 10 ); }
	319
	320	float ato( const char sptr[] ) { return strtof( sptr, 0p ); }
	321	double ato( const char sptr[] ) { return strtod( sptr, 0p ); }
	322	long double ato( const char sptr[] ) { return strtold( sptr, 0p ); }
	323
	324	float _Complex ato( const char sptr[] ) { return strto( sptr, 0p ); }
	325	double _Complex ato( const char sptr[] ) { return strto( sptr, 0p ); }
	326	long double _Complex ato( const char sptr[] ) { return strto( sptr, 0p ); }
[57fc7d8]	327	} // distribution
[e672372]	328
[bd85400]	329	//---------------------------------------
	330
[fd54fef]	331	forall( E \| { int ?<?( E, E ); } ) {
[3ce0d440]	332	E * bsearch( E key, const E * vals, size_t dim );
	333	size_t bsearch( E key, const E * vals, size_t dim );
	334	E * bsearchl( E key, const E * vals, size_t dim );
	335	size_t bsearchl( E key, const E * vals, size_t dim );
	336	E * bsearchu( E key, const E * vals, size_t dim );
	337	size_t bsearchu( E key, const E * vals, size_t dim );
	338	} // distribution
[9c47a47]	339
[fd54fef]	340	forall( K, E \| { int ?<?( K, K ); K getKey( const E & ); } ) {
[3ce0d440]	341	E * bsearch( K key, const E * vals, size_t dim );
	342	size_t bsearch( K key, const E * vals, size_t dim );
	343	E * bsearchl( K key, const E * vals, size_t dim );
	344	size_t bsearchl( K key, const E * vals, size_t dim );
	345	E * bsearchu( K key, const E * vals, size_t dim );
	346	size_t bsearchu( K key, const E * vals, size_t dim );
	347	} // distribution
[bd85400]	348
[fd54fef]	349	forall( E \| { int ?<?( E, E ); } ) {
[b9c04946]	350	void qsort( E * vals, size_t dim );
	351	} // distribution
	352
[bd85400]	353	//---------------------------------------
	354
[bbe1a87]	355	extern "C" { // override C version
	356	void srandom( unsigned int seed );
[4e7c0fc0]	357	long int random( void ); // GENERATES POSITIVE AND NEGATIVE VALUES
	358	// For positive values, use unsigned int, e.g., unsigned int r = random() % 100U;
[bbe1a87]	359	} // extern "C"
	360
	361	static inline {
[aa8e24c3]	362	long int random( long int l, long int u ) { if ( u < l ) [u, l] = [l, u]; return lrand48() % (u - l + 1) + l; } // [l,u]
	363	long int random( long int u ) { return random( 0, u - 1 ); } // [0,u)
[bbe1a87]	364	unsigned long int random( void ) { return lrand48(); }
	365	unsigned long int random( unsigned long int u ) { return lrand48() % u; } // [0,u)
[aa8e24c3]	366	unsigned long int random( unsigned long int l, unsigned long int u ) { if ( u < l ) [u, l] = [l, u]; return lrand48() % (u - l + 1) + l; } // [l,u]
[bbe1a87]	367
	368	char random( void ) { return (unsigned long int)random(); }
	369	char random( char u ) { return random( (unsigned long int)u ); } // [0,u)
	370	char random( char l, char u ) { return random( (unsigned long int)l, (unsigned long int)u ); } // [l,u)
	371	int random( void ) { return (long int)random(); }
	372	int random( int u ) { return random( (long int)u ); } // [0,u]
	373	int random( int l, int u ) { return random( (long int)l, (long int)u ); } // [l,u)
	374	unsigned int random( void ) { return (unsigned long int)random(); }
	375	unsigned int random( unsigned int u ) { return random( (unsigned long int)u ); } // [0,u]
	376	unsigned int random( unsigned int l, unsigned int u ) { return random( (unsigned long int)l, (unsigned long int)u ); } // [l,u)
	377	} // distribution
	378
	379	float random( void ); // [0.0, 1.0)
	380	double random( void ); // [0.0, 1.0)
	381	float _Complex random( void ); // [0.0, 1.0)+[0.0, 1.0)i
	382	double _Complex random( void ); // [0.0, 1.0)+[0.0, 1.0)i
	383	long double _Complex random( void ); // [0.0, 1.0)+[0.0, 1.0)i
[bd85400]	384
	385	//---------------------------------------
	386
[aa8e24c3]	387	struct PRNG {
	388	uint32_t callcnt; // call count
	389	uint32_t seed; // current seed
	390	uint32_t state; // random state
	391	}; // PRNG
	392
	393	extern uint32_t prng( PRNG & prng ) __attribute__(( warn_unused_result )); // [0,UINT_MAX]
	394	static inline {
	395	void set_seed( PRNG & prng, uint32_t seed_ ) with( prng ) { state = seed = seed_; } // set seed
	396	void ?{}( PRNG & prng ) { set_seed( prng, rdtscl() ); } // random seed
	397	void ?{}( PRNG & prng, uint32_t seed ) { set_seed( prng, seed ); } // fixed seed
	398	uint32_t get_seed( PRNG & prng ) __attribute__(( warn_unused_result )) with( prng ) { return seed; } // get seed
	399	uint32_t prng( PRNG & prng, uint32_t u ) __attribute__(( warn_unused_result )) { return prng( prng ) % u; } // [0,u)
	400	uint32_t prng( PRNG & prng, uint32_t l, uint32_t u ) __attribute__(( warn_unused_result )) { return prng( prng, u - l + 1 ) + l; } // [l,u]
	401	uint32_t calls( PRNG & prng ) __attribute__(( warn_unused_result )) with( prng ) { return callcnt; }
	402	} // distribution
	403
	404	extern void set_seed( uint32_t seed ); // set per thread seed
	405	extern uint32_t get_seed(); // get seed
	406	extern uint32_t prng( void ) __attribute__(( warn_unused_result )); // [0,UINT_MAX]
	407	static inline {
	408	uint32_t prng( uint32_t u ) __attribute__(( warn_unused_result ));
	409	uint32_t prng( uint32_t u ) { return prng() % u; } // [0,u)
	410	uint32_t prng( uint32_t l, uint32_t u ) __attribute__(( warn_unused_result ));
	411	uint32_t prng( uint32_t l, uint32_t u ) { return prng( u - l + 1 ) + l; } // [l,u]
	412	} // distribution
	413
	414	//---------------------------------------
	415
[94429f8]	416	extern bool threading_enabled( void ) OPTIONAL_THREAD;
[2026bb6]	417
[bd85400]	418	// Local Variables: //
	419	// mode: c //
	420	// tab-width: 4 //
	421	// End: //

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