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/**
* @file gensvm_memory.c
* @author Gertjan van den Burg
* @date May, 2016
* @brief Utility functions for memory allocation
*
*/
#include "globals.h" // imports gensvm_memory.h
/**
* @brief Wrapper for calloc() which warns when allocation fails
*
* @details
* This is a wrapper function around calloc from <stdlib.h>. It tries to
* allocate the requested memory and checks if the memory was correctly
* allocated. If not, an error is printed using err(), which describes the
* file and linenumber and size failed to allocate. After this, the program
* exits. See also the defines in gensvm_memory.h.
*
* @note
* This function should not be used directly. Calloc() should be used.
*
* @param[in] file filename used for error printing
* @param[in] line line number used for error printing
* @param[in] size the size to allocate
* @param[in] typesize the size of the type to allocate
* @return the pointer to the memory allocated
*/
void *mycalloc(const char *file, int line, unsigned long size,
size_t typesize)
{
void *ptr = calloc(size, typesize);
if (!ptr) {
fprintf(stderr, "Couldn't allocate memory: %lu bytes (%s:%d)\n",
size, file, line);
exit(EXIT_FAILURE);
}
return ptr;
}
/**
* @brief Wrapper for malloc() which warns when allocation fails
*
* @details
* This is a wrapper function around malloc from <stdlib.h>. It tries to
* allocate the requested memory and checks if the memory was correctly
* allocated. If not, an error is printed using err(), which describes the
* file and linenumber and size failed to allocate. After this, the program
* exits. See also the defines in gensvm_memory.h.
*
* @note
* This function should not be used directly. Malloc() should be used.
*
* @param[in] file filename used for error printing
* @param[in] line line number used for error printing
* @param[in] size the size to allocate
* @return the pointer to the memory allocated
*/
void *mymalloc(const char *file, int line, unsigned long size)
{
void *ptr = malloc(size);
if (!ptr) {
fprintf(stderr, "Couldn't allocate memory: %lu bytes (%s:%d)\n",
size, file, line);
exit(EXIT_FAILURE);
}
return ptr;
}
/**
* @brief Wrapper for realloc() which warns when allocation fails
*
* @details
* This is a wrapper function around realloc from <stdlib.h>. It tries to
* reallocate the requested memory and checks if the memory was correctly
* reallocated. If not, an error is printed using err(), which describes the
* file and linenumber and size failed to reallocate. After this, the program
* exits. See also the defines in gensvm_memory.h.
*
* @note
* This function should not be used directly. Realloc() should be used.
*
* @param[in] file filename used for error printing
* @param[in] line line number used for error printing
* @param[in] size the size to allocate
* @param[in] var the pointer to the memory to reallocate
* @return the pointer to the memory reallocated
*/
void *myrealloc(const char *file, int line, unsigned long size, void *var)
{
void *ptr = realloc(var, size);
if (!ptr) {
fprintf(stderr, "Couldn't reallocate memory: %lu bytes (%s:%d)\n",
size, file, line);
exit(EXIT_FAILURE);
}
return ptr;
}
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