57 lines
876 B
C
57 lines
876 B
C
/*
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* memory.c
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*
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* Created on: 2010-11-17
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* Author: bernard
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <finsh.h>
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#include <errno.h>
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static int errors = 0;
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static void merror(const char *msg)
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{
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++errors;
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printf("Error: %s\n", msg);
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}
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int libc_mem(void)
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{
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void *p;
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int save;
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errno = 0;
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p = malloc(-1);
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save = errno;
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if (p != NULL)
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merror("malloc (-1) succeeded.");
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if (p == NULL && save != ENOMEM)
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merror("errno is not set correctly");
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p = malloc(10);
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if (p == NULL)
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merror("malloc (10) failed.");
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/* realloc (p, 0) == free (p). */
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p = realloc(p, 0);
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if (p != NULL)
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merror("realloc (p, 0) failed.");
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p = malloc(0);
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if (p == NULL)
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{
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printf("malloc(0) returns NULL\n");
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}
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p = realloc(p, 0);
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if (p != NULL)
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merror("realloc (p, 0) failed.");
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return errors != 0;
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}
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FINSH_FUNCTION_EXPORT(libc_mem, memory test for libc);
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