尊龙凯时人生就是搏

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sudo apt-get install valgrind

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#include <stdio.h>
#include <stdlib.h>

void create_array(int length) {
    int* array = malloc(length * sizeof(int));
    for (int i = 0; i < length; i++) {
        array[i] = i + 1;
    }
}

int main() {
    create_array(100);
    return 0;
}

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valgrind [Ñ¡Ïî] [´ý¼ì²âµÄ³ÌÐò¼°²ÎÊý]

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valgrind --leak-check=full ./a.out

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==18708== Memcheck, a memory error detector
==18708== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==18708== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==18708== Command: ./a.out
==18708== 
==18708== 
==18708== HEAP SUMMARY:
==18708==     in use at exit: 400 bytes in 1 blocks
==18708==   total heap usage: 1 allocs, 0 frees, 400 bytes allocated
==18708== 
==18708== 400 bytes in 1 blocks are definitely lost in loss record 1 of 1
==18708==    at 0x4C2AB80: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==18708==    by 0x40059D: create_array (main.c:6)
==18708==    by 0x4005A8: main (main.c:11)
==18708== 
==18708== LEAK SUMMARY:
==18708==    definitely lost: 400 bytes in 1 blocks
==18708==    indirectly lost: 0 bytes in 0 blocks
==18708==      possibly lost: 0 bytes in 0 blocks
==18708==    still reachable: 0 bytes in 0 blocks
==18708==         suppressed: 0 bytes in 0 blocks
==18708== 
==18708== For counts of detected and suppressed errors, rerun with: -v
==18708== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

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HEAP SUMMARY: ÓÃÓÚ˵Ã÷ÄÚ´æµÄʹÓÃÇéÐΡ£±¾ÀýÖУ¬³ÌÐòÔÚÍ˳öʱÓÐ400×Ö½ÚµÄÄÚ´æÈÔÈ»±»Ê¹Ó㬲¢ÇÒÖ»¾ÙÐйýÒ»´ÎÄÚ´æ·ÖÅÉ¡£

LEAK SUMMARY: ÓÃÓÚ×ܽáÄÚ´æ×ß©µÄÇéÐΡ£±¾ÀýÖУ¬ÓÐ400×Ö½ÚµÄÄÚ±£´æ´úÂëʾÀýµÄ×îºóδ±»ÊÍ·Å¡£

ERROR SUMMARY: ÓÃÓÚչʾ¹ýʧÐÅÏ¢µÄÕªÒª¡£±¾ÀýÖУ¬Valgrind¼ì²âµ½ÁË1¸ö¹ýʧ¡£

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