source: src/libcfa/stdlib @ 777ed2b

//
// 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 : Thu Jul  5 07:41:03 2018
// Update Count     : 332
//

#pragma once

#include <stdlib.h>                                                                             // allocation, strto*, *abs
extern "C" {
        void * memalign( size_t align, size_t size );           // malloc.h
        void * memset( void * dest, int c, 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

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

static inline forall( dtype T | sized(T) ) {
        // C dynamic allocation

        T * malloc( void ) {
                // printf( "* malloc\n" );
                return (T *)(void *)malloc( (size_t)sizeof(T) ); // C malloc
        } // malloc

        // T & malloc( void ) {
        //      int & p = *(T *)(void *)malloc( (size_t)sizeof(T) ); // C malloc
        //      printf( "& malloc %p\n", &p );
        //      return p;
        //      //      return (T &)*(T *)(void *)malloc( (size_t)sizeof(T) ); // C malloc
        // } // malloc

        T * calloc( size_t dim ) {
                //printf( "X2\n" );
                return (T *)(void *)calloc( dim, sizeof(T) );   // C calloc
        } // calloc

        T * realloc( T * ptr, size_t size ) {
                //printf( "X3\n" );
                return (T *)(void *)realloc( (void *)ptr, size );
        } // realloc

        T * memalign( size_t align ) {
                //printf( "X4\n" );
                return (T *)memalign( align, sizeof(T) );
        } // memalign

        T * aligned_alloc( size_t align ) {
                //printf( "X5\n" );
                return (T *)aligned_alloc( align, sizeof(T) );
        } // aligned_alloc

        int posix_memalign( T ** ptr, size_t align ) {
                //printf( "X6\n" );
                return posix_memalign( (void **)ptr, align, sizeof(T) ); // C posix_memalign
        } // posix_memalign


        // Cforall dynamic allocation

        T * alloc( void ) {
                //printf( "X7\n" );
                return (T *)(void *)malloc( (size_t)sizeof(T) ); // C malloc
        } // alloc

        T * alloc( char fill ) {
                //printf( "X8\n" );
                T * ptr = (T *)(void *)malloc( (size_t)sizeof(T) );     // C malloc
                return (T *)memset( ptr, (int)fill, sizeof(T) );        // initial with fill value
        } // alloc

        T * alloc( size_t dim ) {
                //printf( "X9\n" );
                return (T *)(void *)malloc( dim * (size_t)sizeof(T) ); // C malloc
        } // alloc

        T * alloc( size_t dim, char fill ) {
                //printf( "X10\n" );
                T * ptr = (T *)(void *)malloc( dim * (size_t)sizeof(T) ); // C malloc
                return (T *)memset( ptr, (int)fill, dim * sizeof(T) );    // initial with fill value
        } // alloc

        T * alloc( T ptr[], size_t dim ) {
                //printf( "X11\n" );
                return (T *)(void *)realloc( (void *)ptr, dim * (size_t)sizeof(T) ); // C realloc
        } // alloc
} // distribution


forall( dtype T | sized(T) ) T * alloc( T ptr[], size_t dim, char fill );


static inline forall( dtype T | sized(T) ) {
        T * align_alloc( size_t align ) {
                //printf( "X13\n" );
                return (T *)memalign( align, sizeof(T) );
        } // align_alloc

        T * align_alloc( size_t align, char fill ) {
                //printf( "X14\n" );
                T * ptr = (T *)memalign( align, sizeof(T) );
                return (T *)memset( ptr, (int)fill, sizeof(T) );
        } // align_alloc

        T * align_alloc( size_t align, size_t dim ) {
                //printf( "X15\n" );
                return (T *)memalign( align, dim * sizeof(T) );
        } // align_alloc

        T * align_alloc( size_t align, size_t dim, char fill ) {
                //printf( "X16\n" );
                T * ptr = (T *)memalign( align, dim * sizeof(T) );
                return (T *)memset( ptr, (int)fill, dim * sizeof(T) );
        } // align_alloc
} // distribution


static inline forall( dtype T | sized(T) ) {
        // data, non-array types

        T * memset( T * dest, char c ) {
                //printf( "X17\n" );
                return (T *)memset( dest, c, sizeof(T) );
        } // memset

        T * memcpy( T * dest, const T * src ) {
                //printf( "X18\n" );
                return (T *)memcpy( dest, src, sizeof(T) );
        } // memcpy
} // distribution

static inline forall( dtype T | sized(T) ) {
        // data, array types

        T * memset( T dest[], size_t dim, char c ) {
                //printf( "X19\n" );
                return (T *)(void *)memset( dest, c, dim * sizeof(T) ); // C memset
        } // memset

        T * memcpy( T dest[], const T src[], size_t dim ) {
                //printf( "X20\n" );
                return (T *)(void *)memcpy( dest, src, dim * sizeof(T) ); // C memcpy
        } // memcpy
} // distribution

// 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 | sized(T) | { void ^?{}( T & ); } ) void delete( T * ptr );
forall( dtype T, ttype Params | sized(T) | { void ^?{}( T & ); void delete( Params ); } ) void delete( T * ptr, Params rest );

// 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, 0, 10 ); }
        unsigned int ato( const char * sptr ) { return (unsigned int)strtoul( sptr, 0, 10 ); }
        long int ato( const char * sptr ) { return strtol( sptr, 0, 10 ); }
        unsigned long int ato( const char * sptr ) { return strtoul( sptr, 0, 10 ); }
        long long int ato( const char * sptr ) { return strtoll( sptr, 0, 10 ); }
        unsigned long long int ato( const char * sptr ) { return strtoull( sptr, 0, 10 ); }

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

        float _Complex ato( const char * sptr ) { return strto( sptr, NULL ); }
        double _Complex ato( const char * sptr ) { return strto( sptr, NULL ); }
        long double _Complex ato( const char * sptr ) { return strto( sptr, NULL ); }
} // 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 );

        void qsort( 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

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

[ int, int ] div( int num, int denom );
[ long int, long int ] div( long int num, long int denom );
[ long long int, long long int ] div( long long int num, long long int denom );
forall( otype T | { T ?/?( T, T ); T ?%?( T, T ); } )
[ T, T ] div( T num, T demon );

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

extern "C" { int abs( int ); }                                                  // use default C routine for int
static inline {
        unsigned char abs( signed char v ) { return abs( (int)v ); }
        unsigned long int abs( long int v ) { return labs( v ); }
        unsigned long long int abs( long long int v ) { return llabs( v ); }
} // distribution

extern "C" {                                                                                    // use default C routine for int
        double fabs( double );
        float fabsf( float );
        long double fabsl( long double );
} // extern "C"
static inline {
        float abs( float x ) { return fabsf( x ); }
        double abs( double x ) { return fabs( x ); }
        long double abs( long double x ) { return fabsl( x ); }
} // distribution

extern "C" {                                                                                    // use default C routine for int
        double cabs( double _Complex );
        float cabsf( float _Complex );
        long double cabsl( long double _Complex );
} // extern "C"
static inline {
        float abs( float _Complex x ) { return cabsf( x ); }
        double abs( double _Complex x ) { return cabs( x ); }
        long double abs( long double _Complex x ) { return cabsl( x ); }
} // distribution

forall( otype T | { void ?{}( T &, zero_t ); int ?<?( T, T ); T -?( T ); } )
T abs( T );

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

extern "C" {                                                                                    // override C version
        void srandom( unsigned int seed );
        long int random( void );
} // 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 l, unsigned long int u ) { if ( u < l ) [u, l] = [l, u]; return lrand48() % (u - l) + l; } // [l,u)
        unsigned long int random( unsigned long int u ) { return lrand48() % u; } // [0,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

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

static inline {
        forall( otype T | { int ?<?( T, T ); } )
        T min( T t1, T t2 ) { return t1 < t2 ? t1 : t2; }

        forall( otype T | { int ?>?( T, T ); } )
        T max( T t1, T t2 ) { return t1 > t2 ? t1 : t2; }

        forall( otype T | { T min( T, T ); T max( T, T ); } )
        T clamp( T value, T min_val, T max_val ) { return max( min_val, min( value, max_val ) ); }

        forall( otype T )
        void swap( T & v1, T & v2 ) { T temp = v1; v1 = v2; v2 = temp; }
} // distribution

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