Sun, 22 Dec 2024 21:42:16 +0100
add attributes to string to number conversion functions
issue #532
/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "cx/allocator.h" #include <errno.h> __attribute__((__malloc__, __alloc_size__(2))) static void *cx_malloc_stdlib( cx_attr_unused void *d, size_t n ) { return malloc(n); } __attribute__((__warn_unused_result__, __alloc_size__(3))) static void *cx_realloc_stdlib( cx_attr_unused void *d, void *mem, size_t n ) { return realloc(mem, n); } __attribute__((__malloc__, __alloc_size__(2, 3))) static void *cx_calloc_stdlib( cx_attr_unused void *d, size_t nelem, size_t n ) { return calloc(nelem, n); } __attribute__((__nonnull__)) static void cx_free_stdlib( cx_attr_unused void *d, void *mem ) { free(mem); } static cx_allocator_class cx_default_allocator_class = { cx_malloc_stdlib, cx_realloc_stdlib, cx_calloc_stdlib, cx_free_stdlib }; struct cx_allocator_s cx_default_allocator = { &cx_default_allocator_class, NULL }; CxAllocator *cxDefaultAllocator = &cx_default_allocator; #undef cx_reallocate int cx_reallocate( void **mem, size_t n ) { void *nmem = realloc(*mem, n); if (nmem == NULL) { return 1; } else { *mem = nmem; return 0; } } #undef cx_reallocatearray int cx_reallocatearray( void **mem, size_t nmemb, size_t size ) { size_t n; if (cx_szmul(nmemb, size, &n)) { errno = EOVERFLOW; return 1; } else { void *nmem = realloc(*mem, n); if (nmem == NULL) { return 1; } else { *mem = nmem; return 0; } } } // IMPLEMENTATION OF HIGH LEVEL API void *cxMalloc( const CxAllocator *allocator, size_t n ) { return allocator->cl->malloc(allocator->data, n); } void *cxRealloc( const CxAllocator *allocator, void *mem, size_t n ) { return allocator->cl->realloc(allocator->data, mem, n); } void *cxReallocArray( const CxAllocator *allocator, void *mem, size_t nmemb, size_t size ) { size_t n; if (cx_szmul(nmemb, size, &n)) { errno = EOVERFLOW; return NULL; } else { return allocator->cl->realloc(allocator->data, mem, n); } } #undef cxReallocate int cxReallocate( const CxAllocator *allocator, void **mem, size_t n ) { void *nmem = allocator->cl->realloc(allocator->data, *mem, n); if (nmem == NULL) { return 1; } else { *mem = nmem; return 0; } } #undef cxReallocateArray int cxReallocateArray( const CxAllocator *allocator, void **mem, size_t nmemb, size_t size ) { void *nmem = cxReallocArray(allocator, *mem, nmemb, size); if (nmem == NULL) { return 1; } else { *mem = nmem; return 0; } } void *cxCalloc( const CxAllocator *allocator, size_t nelem, size_t n ) { return allocator->cl->calloc(allocator->data, nelem, n); } void cxFree( const CxAllocator *allocator, void *mem ) { allocator->cl->free(allocator->data, mem); }