source: libcfa/src/stdlib.hfa @ 42cd451e

//
// Cforall Version 1.0.0 Copyright (C) 2016 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// stdlib --
//
// Author           : Peter A. Buhr
// Created On       : Thu Jan 28 17:12:35 2016
// Last Modified By : Peter A. Buhr
// Last Modified On : Tue Jul 21 07:58:05 2020
// Update Count     : 475
//

#pragma once

#include "bits/defs.hfa"
#include "bits/align.hfa"

#include <stdlib.h>                                                                             // *alloc, strto*, ato*
#include <heap.hfa>

// Reduce includes by explicitly defining these routines.
extern "C" {
        void * memalign( size_t alignment, size_t size );       // malloc.h
        void * pvalloc( size_t size );                                          // malloc.h
        void * memset( void * dest, int fill, size_t size ); // string.h
        void * memcpy( void * dest, const void * src, size_t size ); // string.h
} // extern "C"

//---------------------------------------

#ifndef EXIT_FAILURE
#define EXIT_FAILURE    1                                                               // failing exit status
#define EXIT_SUCCESS    0                                                               // successful exit status
#endif // ! EXIT_FAILURE

//---------------------------------------

// Macro because of returns
#define $VAR_ALLOC( allocation, alignment ) \
        if ( _Alignof(T) <= libAlign() ) return (T *)(void *)allocation( (size_t)sizeof(T) ); /* C allocation */ \
        else return (T *)alignment( _Alignof(T), sizeof(T) )

#define $ARRAY_ALLOC( allocation, alignment, dim ) \
        if ( _Alignof(T) <= libAlign() ) return (T *)(void *)allocation( dim, (size_t)sizeof(T) ); /* C allocation */ \
        else return (T *)alignment( _Alignof(T), dim, sizeof(T) )

#define $RE_SPECIALS( ptr, size, allocation, alignment ) \
        if ( unlikely( size == 0 ) || unlikely( ptr == 0p ) ) { \
                if ( unlikely( size == 0 ) ) free( ptr ); \
                $VAR_ALLOC( malloc, memalign ); \
        } /* if */

static inline forall( dtype T | sized(T) ) {
        // Cforall safe equivalents, i.e., implicit size specification

        T * malloc( void ) {
                $VAR_ALLOC( malloc, memalign );
        } // malloc

        T * aalloc( size_t dim ) {
                $ARRAY_ALLOC( aalloc, amemalign, dim );
        } // aalloc

        T * calloc( size_t dim ) {
                $ARRAY_ALLOC( calloc, cmemalign, dim );
        } // calloc

        T * resize( T * ptr, size_t size ) {                            // CFA resize, eliminate return-type cast
                $RE_SPECIALS( ptr, size, malloc, memalign );
                return (T *)(void *)resize( (void *)ptr, size ); // CFA resize
        } // resize

        T * realloc( T * ptr, size_t size ) {                           // CFA realloc, eliminate return-type cast
                $RE_SPECIALS( ptr, size, malloc, memalign );
                return (T *)(void *)realloc( (void *)ptr, size ); // C realloc
        } // realloc

        T * memalign( size_t align ) {
                return (T *)memalign( align, sizeof(T) );               // C memalign
        } // memalign

        T * amemalign( size_t align, size_t dim ) {
                return (T *)amemalign( align, dim, sizeof(T) ); // CFA amemalign
        } // amemalign

        T * cmemalign( size_t align, size_t dim  ) {
                return (T *)cmemalign( align, dim, sizeof(T) ); // CFA cmemalign
        } // cmemalign

        T * aligned_alloc( size_t align ) {
                return (T *)aligned_alloc( align, sizeof(T) );  // C aligned_alloc
        } // aligned_alloc

        int posix_memalign( T ** ptr, size_t align ) {
                return posix_memalign( (void **)ptr, align, sizeof(T) ); // C posix_memalign
        } // posix_memalign

        T * valloc( void ) {
                return (T *)valloc( sizeof(T) );                                // C valloc
        } // valloc

        T * pvalloc( void ) {
                return (T *)pvalloc( sizeof(T) );                               // C pvalloc
        } // pvalloc
} // distribution

static inline forall( dtype T | sized(T) ) {
        // Cforall safe general allocation, fill, resize, array

        T * alloc( void ) {
                return malloc();
        } // alloc

        T * alloc( size_t dim ) {
                return aalloc( dim );
        } // alloc

        forall( dtype S | sized(S) )
        T * alloc( S ptr[], size_t dim = 1 ) {                          // singleton/array resize
                size_t len = malloc_usable_size( ptr );                 // current bucket size
                if ( sizeof(T) * dim > len ) {                                  // not enough space ?
                        T * temp = alloc( dim );                                        // new storage
                        free( ptr );                                                            // free old storage
                        return temp;
                } else {
                        return (T *)ptr;
                } // if
        } // alloc

        T * alloc( T ptr[], size_t dim, bool copy = true ) {
                if ( copy ) {
                        return realloc( ptr, dim * sizeof(T) );         // CFA realloc
                } else {
                        return resize( ptr, dim * sizeof(T) );          // CFA resize
                } // if
        } // alloc

        T * alloc_set( char fill ) {
                return (T *)memset( (T *)alloc(), (int)fill, sizeof(T) ); // initialize with fill value
        } // alloc

        T * alloc_set( T fill ) {
                return (T *)memcpy( (T *)alloc(), &fill, sizeof(T) ); // initialize with fill value
        } // alloc

        T * alloc_set( size_t dim, char fill ) {
                return (T *)memset( (T *)alloc( dim ), (int)fill, dim * sizeof(T) ); // initialize with fill value
        } // alloc

        T * alloc_set( size_t dim, T fill ) {
                T * r = (T *)alloc( dim );
                for ( i; dim ) { memcpy( &r[i], &fill, sizeof(T) ); } // initialize with fill value
                return r;
        } // alloc

        T * alloc_set( size_t dim, const T fill[] ) {
                return (T *)memcpy( (T *)alloc( dim ), fill, dim * sizeof(T) ); // initialize with fill value
        } // alloc

        T * alloc_set( T ptr[], size_t dim, char fill ) {       // realloc array with fill
                size_t osize = malloc_size( ptr );                              // current allocation
                size_t nsize = dim * sizeof(T);                                 // new allocation
                T * nptr = realloc( ptr, nsize );                               // CFA realloc
                if ( nsize > osize ) {                                                  // larger ?
                        memset( (char *)nptr + osize, (int)fill, nsize - osize ); // initialize added storage
                } // if
                return (T *)nptr;
        } // alloc_set

        T * alloc_set( T ptr[], size_t dim, T & fill ) {        // realloc array with fill
                size_t odim = malloc_size( ptr ) / sizeof(T);   // current dimension
                size_t nsize = dim * sizeof(T);                                 // new allocation
                size_t ndim = nsize / sizeof(T);                                // new dimension
                T * nptr = realloc( ptr, nsize );                               // CFA realloc
                if ( ndim > odim ) {                                                    // larger ?
                        for ( i; odim ~ ndim ) {
                                memcpy( &nptr[i], &fill, sizeof(T) );   // initialize with fill value
                        } // for
                } // if
                return (T *)nptr;
        } // alloc_align_set
} // distribution

static inline forall( dtype T | sized(T) ) {
        T * alloc_align( size_t align ) {
                return (T *)memalign( align, sizeof(T) );
        } // alloc_align

        T * alloc_align( size_t align, size_t dim ) {
                return (T *)memalign( align, dim * sizeof(T) );
        } // alloc_align

        T * alloc_align( T * ptr, size_t align ) {                      // aligned realloc array
                return (T *)(void *)realloc( (void *)ptr, align, sizeof(T) ); // CFA realloc
        } // alloc_align

        forall( dtype S | sized(S) )
        T * alloc_align( S ptr[], size_t align ) {                      // aligned reuse array
                return (T *)(void *)resize( (void *)ptr, align, sizeof(T) ); // CFA realloc
        } // alloc_align

        T * alloc_align( T ptr[], size_t align, size_t dim ) { // aligned realloc array
                return (T *)(void *)realloc( (void *)ptr, align, dim * sizeof(T) ); // CFA realloc
        } // alloc_align

        T * alloc_align_set( size_t align, char fill ) {
                return (T *)memset( (T *)alloc_align( align ), (int)fill, sizeof(T) ); // initialize with fill value
        } // alloc_align

        T * alloc_align_set( size_t align, T fill ) {
                return (T *)memcpy( (T *)alloc_align( align ), &fill, sizeof(T) ); // initialize with fill value
        } // alloc_align

        T * alloc_align_set( size_t align, size_t dim, char fill ) {
                return (T *)memset( (T *)alloc_align( align, dim ), (int)fill, dim * sizeof(T) ); // initialize with fill value
        } // alloc_align

        T * alloc_align_set( size_t align, size_t dim, T fill ) {
                T * r = (T *)alloc_align( align, dim );
                for ( i; dim ) { memcpy( &r[i], &fill, sizeof(T) ); } // initialize with fill value
                return r;
        } // alloc_align

        T * alloc_align_set( size_t align, size_t dim, const T fill[] ) {
                return (T *)memcpy( (T *)alloc_align( align, dim ), fill, dim * sizeof(T) );
        } // alloc_align

        T * alloc_align_set( T ptr[], size_t align, size_t dim, char fill ) {
                size_t osize = malloc_size( ptr );                              // current allocation
                size_t nsize = dim * sizeof(T);                                 // new allocation
                T * nptr = realloc( ptr, align, nsize );                // CFA realloc
                if ( nsize > osize ) {                                                  // larger ?
                        memset( (char *)nptr + osize, (int)fill, nsize - osize ); // initialize added storage
                } // if
                return (T *)nptr;
        } // alloc_align_set

        T * alloc_align_set( T ptr[], size_t align, size_t dim, T & fill ) {
                size_t odim = malloc_size( ptr ) / sizeof(T);   // current dimension
                size_t nsize = dim * sizeof(T);                                 // new allocation
                size_t ndim = nsize / sizeof(T);                                // new dimension
                T * nptr = realloc( ptr, align, nsize );                // CFA realloc
                if ( ndim > odim ) {                                                    // larger ?
                        for ( i; odim ~ ndim ) {
                                memcpy( &nptr[i], &fill, sizeof(T) );   // initialize with fill value
                        } // for
                } // if
                return (T *)nptr;
        } // alloc_align_set
} // distribution

static inline forall( dtype T | sized(T) ) {
        // Cforall safe initialization/copy, i.e., implicit size specification, non-array types
        T * memset( T * dest, char fill ) {
                return (T *)memset( dest, fill, sizeof(T) );
        } // memset

        T * memcpy( T * dest, const T * src ) {
                return (T *)memcpy( dest, src, sizeof(T) );
        } // memcpy
} // distribution

static inline forall( dtype T | sized(T) ) {
        // Cforall safe initialization/copy, i.e., implicit size specification, array types
        T * amemset( T dest[], char fill, size_t dim ) {
                return (T *)(void *)memset( dest, fill, dim * sizeof(T) ); // C memset
        } // amemset

        T * amemcpy( T dest[], const T src[], size_t dim ) {
                return (T *)(void *)memcpy( dest, src, dim * sizeof(T) ); // C memcpy
        } // amemcpy
} // distribution

// Cforall allocation/deallocation and constructor/destructor, non-array types
forall( dtype T | sized(T), ttype Params | { void ?{}( T &, Params ); } ) T * new( Params p );
forall( dtype T | { void ^?{}( T & ); } ) void delete( T * ptr );
forall( dtype T, ttype Params | { void ^?{}( T & ); void delete( Params ); } ) void delete( T * ptr, Params rest );

// Cforall allocation/deallocation and constructor/destructor, array types
forall( dtype T | sized(T), ttype Params | { void ?{}( T &, Params ); } ) T * anew( size_t dim, Params p );
forall( dtype T | sized(T) | { void ^?{}( T & ); } ) void adelete( size_t dim, T arr[] );
forall( dtype T | sized(T) | { void ^?{}( T & ); }, ttype Params | { void adelete( Params ); } ) void adelete( size_t dim, T arr[], Params rest );

//---------------------------------------

static inline {
        int strto( const char sptr[], char ** eptr, int base ) { return (int)strtol( sptr, eptr, base ); }
        unsigned int strto( const char sptr[], char ** eptr, int base ) { return (unsigned int)strtoul( sptr, eptr, base ); }
        long int strto( const char sptr[], char ** eptr, int base ) { return strtol( sptr, eptr, base ); }
        unsigned long int strto( const char sptr[], char ** eptr, int base ) { return strtoul( sptr, eptr, base ); }
        long long int strto( const char sptr[], char ** eptr, int base ) { return strtoll( sptr, eptr, base ); }
        unsigned long long int strto( const char sptr[], char ** eptr, int base ) { return strtoull( sptr, eptr, base ); }

        float strto( const char sptr[], char ** eptr ) { return strtof( sptr, eptr ); }
        double strto( const char sptr[], char ** eptr ) { return strtod( sptr, eptr ); }
        long double strto( const char sptr[], char ** eptr ) { return strtold( sptr, eptr ); }
} // distribution

float _Complex strto( const char sptr[], char ** eptr );
double _Complex strto( const char sptr[], char ** eptr );
long double _Complex strto( const char sptr[], char ** eptr );

static inline {
        int ato( const char sptr[] ) { return (int)strtol( sptr, 0p, 10 ); }
        unsigned int ato( const char sptr[] ) { return (unsigned int)strtoul( sptr, 0p, 10 ); }
        long int ato( const char sptr[] ) { return strtol( sptr, 0p, 10 ); }
        unsigned long int ato( const char sptr[] ) { return strtoul( sptr, 0p, 10 ); }
        long long int ato( const char sptr[] ) { return strtoll( sptr, 0p, 10 ); }
        unsigned long long int ato( const char sptr[] ) { return strtoull( sptr, 0p, 10 ); }

        float ato( const char sptr[] ) { return strtof( sptr, 0p ); }
        double ato( const char sptr[] ) { return strtod( sptr, 0p ); }
        long double ato( const char sptr[] ) { return strtold( sptr, 0p ); }

        float _Complex ato( const char sptr[] ) { return strto( sptr, 0p ); }
        double _Complex ato( const char sptr[] ) { return strto( sptr, 0p ); }
        long double _Complex ato( const char sptr[] ) { return strto( sptr, 0p ); }
} // distribution

//---------------------------------------

forall( otype E | { int ?<?( E, E ); } ) {
        E * bsearch( E key, const E * vals, size_t dim );
        size_t bsearch( E key, const E * vals, size_t dim );
        E * bsearchl( E key, const E * vals, size_t dim );
        size_t bsearchl( E key, const E * vals, size_t dim );
        E * bsearchu( E key, const E * vals, size_t dim );
        size_t bsearchu( E key, const E * vals, size_t dim );
} // distribution

forall( otype K, otype E | { int ?<?( K, K ); K getKey( const E & ); } ) {
        E * bsearch( K key, const E * vals, size_t dim );
        size_t bsearch( K key, const E * vals, size_t dim );
        E * bsearchl( K key, const E * vals, size_t dim );
        size_t bsearchl( K key, const E * vals, size_t dim );
        E * bsearchu( K key, const E * vals, size_t dim );
        size_t bsearchu( K key, const E * vals, size_t dim );
} // distribution

forall( otype E | { int ?<?( E, E ); } ) {
        void qsort( E * vals, size_t dim );
} // distribution

//---------------------------------------

extern "C" {                                                                                    // override C version
        void srandom( unsigned int seed );
        long int random( void );                                                        // GENERATES POSITIVE AND NEGATIVE VALUES
        // For positive values, use unsigned int, e.g., unsigned int r = random() % 100U;
} // extern "C"

static inline {
        long int random( long int l, long int u ) { if ( u < l ) [u, l] = [l, u]; return lrand48() % (u - l) + l; } // [l,u)
        long int random( long int u ) { if ( u < 0 ) return random( u, 0 ); else return random( 0, u ); } // [0,u)
        unsigned long int random( void ) { return lrand48(); }
        unsigned long int random( unsigned long int u ) { return lrand48() % u; } // [0,u)
        unsigned long int random( unsigned long int l, unsigned long int u ) { if ( u < l ) [u, l] = [l, u]; return lrand48() % (u - l) + l; } // [l,u)

        char random( void ) { return (unsigned long int)random(); }
        char random( char u ) { return random( (unsigned long int)u ); } // [0,u)
        char random( char l, char u ) { return random( (unsigned long int)l, (unsigned long int)u ); } // [l,u)
        int random( void ) { return (long int)random(); }
        int random( int u ) { return random( (long int)u ); } // [0,u]
        int random( int l, int u ) { return random( (long int)l, (long int)u ); } // [l,u)
        unsigned int random( void ) { return (unsigned long int)random(); }
        unsigned int random( unsigned int u ) { return random( (unsigned long int)u ); } // [0,u]
        unsigned int random( unsigned int l, unsigned int u ) { return random( (unsigned long int)l, (unsigned long int)u ); } // [l,u)
} // distribution

float random( void );                                                                   // [0.0, 1.0)
double random( void );                                                                  // [0.0, 1.0)
float _Complex random( void );                                                  // [0.0, 1.0)+[0.0, 1.0)i
double _Complex random( void );                                                 // [0.0, 1.0)+[0.0, 1.0)i
long double _Complex random( void );                                    // [0.0, 1.0)+[0.0, 1.0)i

//---------------------------------------

#include "common.hfa"

//---------------------------------------

extern bool threading_enabled(void) OPTIONAL_THREAD;

// Local Variables: //
// mode: c //
// tab-width: 4 //
// End: //