Changeset c3a2007 for libcfa/src/stdlib.cfa
- Timestamp:
- Oct 28, 2019, 4:28:37 PM (4 years ago)
- Branches:
- ADT, arm-eh, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, pthread-emulation, qualifiedEnum
- Children:
- 8364209
- Parents:
- c921712 (diff), 9bdb8b7 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
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- 1 edited
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libcfa/src/stdlib.cfa
rc921712 rc3a2007 10 10 // Created On : Thu Jan 28 17:10:29 2016 11 11 // Last Modified By : Peter A. Buhr 12 // Last Modified On : Mon Jun 24 17:34:44201913 // Update Count : 4 6212 // Last Modified On : Tue Oct 22 08:57:52 2019 13 // Update Count : 478 14 14 // 15 15 … … 21 21 #include <string.h> // memcpy, memset 22 22 #include <malloc.h> // malloc_usable_size 23 #include <math.h> // fabsf, fabs, fabsl23 //#include <math.h> // fabsf, fabs, fabsl 24 24 #include <complex.h> // _Complex_I 25 25 #include <assert.h> … … 27 27 //--------------------------------------- 28 28 29 // resize, non-array types 30 forall( dtype T | sized(T) ) T * alloc( T ptr[], size_t dim, char fill ) { 31 size_t olen = malloc_usable_size( ptr ); // current allocation 32 char * nptr = (void *)realloc( (void *)ptr, dim * (size_t)sizeof(T) ); // C realloc 33 size_t nlen = malloc_usable_size( nptr ); // new allocation 34 if ( nlen > olen ) { // larger ? 35 memset( nptr + olen, (int)fill, nlen - olen ); // initialize added storage 36 } // 37 return (T *)nptr; 38 } // alloc 29 forall( dtype T | sized(T) ) { 30 T * alloc_set( T ptr[], size_t dim, char fill ) { // realloc array with fill 31 size_t olen = malloc_usable_size( ptr ); // current allocation 32 char * nptr = (char *)realloc( (void *)ptr, dim * sizeof(T) ); // C realloc 33 size_t nlen = malloc_usable_size( nptr ); // new allocation 34 if ( nlen > olen ) { // larger ? 35 memset( nptr + olen, (int)fill, nlen - olen ); // initialize added storage 36 } // if 37 return (T *)nptr; 38 } // alloc_set 39 40 T * alloc_align( T ptr[], size_t align ) { // aligned realloc array 41 char * nptr; 42 size_t alignment = malloc_alignment( ptr ); 43 if ( align != alignment && (uintptr_t)ptr % align != 0 ) { 44 size_t olen = malloc_usable_size( ptr ); // current allocation 45 nptr = (char *)memalign( align, olen ); 46 size_t nlen = malloc_usable_size( nptr ); // new allocation 47 size_t lnth = olen < nlen ? olen : nlen; // min 48 memcpy( nptr, ptr, lnth ); // initialize storage 49 free( ptr ); 50 } else { 51 nptr = (char *)ptr; 52 } // if 53 return (T *)nptr; 54 } // alloc_align 55 56 T * alloc_align( T ptr[], size_t align, size_t dim ) { // aligned realloc array 57 char * nptr; 58 size_t alignment = malloc_alignment( ptr ); 59 if ( align != alignment ) { 60 size_t olen = malloc_usable_size( ptr ); // current allocation 61 nptr = (char *)memalign( align, dim * sizeof(T) ); 62 size_t nlen = malloc_usable_size( nptr ); // new allocation 63 size_t lnth = olen < nlen ? olen : nlen; // min 64 memcpy( nptr, ptr, lnth ); // initialize storage 65 free( ptr ); 66 } else { 67 nptr = (char *)realloc( (void *)ptr, dim * sizeof(T) ); // C realloc 68 } // if 69 return (T *)nptr; 70 } // alloc_align 71 72 T * alloc_align_set( T ptr[], size_t align, char fill ) { // aligned realloc with fill 73 size_t olen = malloc_usable_size( ptr ); // current allocation 74 char * nptr = alloc_align( ptr, align ); 75 size_t nlen = malloc_usable_size( nptr ); // new allocation 76 if ( nlen > olen ) { // larger ? 77 memset( nptr + olen, (int)fill, nlen - olen ); // initialize added storage 78 } // if 79 return (T *)nptr; 80 } // alloc_align_set 81 } // distribution 39 82 40 83 // allocation/deallocation and constructor/destructor, non-array types 41 84 forall( dtype T | sized(T), ttype Params | { void ?{}( T &, Params ); } ) 42 85 T * new( Params p ) { 43 return &(*malloc()){ p }; 86 return &(*malloc()){ p }; // run constructor 44 87 } // new 45 88 … … 47 90 void delete( T * ptr ) { 48 91 if ( ptr ) { // ignore null 49 ^(*ptr){}; 92 ^(*ptr){}; // run destructor 50 93 free( ptr ); 51 94 } // if … … 55 98 void delete( T * ptr, Params rest ) { 56 99 if ( ptr ) { // ignore null 57 ^(*ptr){}; 100 ^(*ptr){}; // run destructor 58 101 free( ptr ); 59 102 } // if
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