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我巧舌如簧寫了一個測試例子:g_cache_insert()與空指針錯誤崩潰
#undef G_DISABLE_ASSERT
#undef G_LOG_DOMAIN
#include <stdio.h>
#include <string.h>
#include "glib.h"
void function(gchar *key,gchar *value,gint *user_data)
{
// give the count of the number of times the function was called
(*user_data)++;
}
void cache_test()
{
gchar *str1,*str2,*str3;
GCache *cache = NULL;
gint user_data = 0;
g_assert((cache = g_cache_new((GCacheNewFunc) g_ascii_strup,
g_free, (GCacheDupFunc) g_strdup, g_free, g_str_hash,
g_str_hash, g_str_equal)) != NULL);
g_print("\n g_assert g_cache_new");
str1 = g_cache_insert(cache,"test");
g_print("\n str1 = g_cache_insert(cache,test)");
g_assert(!strcmp("TEST",str1));
g_print("\n g_assert(!strcmp(TEST,str1))");
str2 = g_cache_insert(cache,"test");
g_print("\n str2 = g_cache_insert(cache,test)");
g_assert(!strcmp("TEST",str1));
g_print("\n g_assert(!strcmp(TEST,str1))");
str3 = g_cache_insert(cache,"glib");
g_print("\n str3 = g_cache_insert(cache,glib)");
g_assert(!strcmp("GLIB",str3));
g_print("\n g_assert(!strcmp(GLIB,str3))");
g_cache_key_foreach (cache,(GHFunc)function,&user_data);
g_print("\n g_cache_key_foreach (cache,(GHFunc)function,&user_data)");
//g_cache_key_foreach would call function twice and make user_data == 2
g_assert(user_data == 2);
g_cache_value_foreach (cache,(GHFunc)function,&user_data);
g_print("\n g_cache_key_foreach (cache,(GHFunc)function,&user_data)");
//g_cache_value_foreach would call function twice and make user_data == 4
g_assert(user_data == 4);
g_cache_remove(cache,str1);
g_print("\n g_cache_remove(cache,str1)");
g_cache_remove(cache,str2);
g_print("\n g_cache_remove(cache,str1)");
g_cache_remove(cache,str3);
g_print("\n g_cache_remove(cache,str1)");
g_cache_destroy(cache);
g_print("\n g_cache_destroy(cache)");
}
int main (int argc,
char *argv[])
{
cache_test();
return 0;
}
現在我的測試實例崩潰在STR1 = g_cache_insert(高速緩存, 「測試」);由於空指針解引用。 任何幫助我可能會出錯?
編輯
我只是想多1速戰速決的測試代碼,以確認您(在g_ascii_strup的bug)的建議。我用電話
cache = g_cache_new((GCacheNewFunc) g_strdup,
g_free, (GCacheDupFunc)g_strdup, g_free, g_str_hash,
g_str_hash, g_str_equal);
ie而不是g_ascii_strup()我用g_strdup ...我沒有看到任何崩潰。我在這裏錯過了什麼嗎?
並且是在最新的glib發行版中修復的g_ascii_strup()bug?如果您知道這個問題,我可以請您提供錯誤編號嗎?
@浩劫意味着演員在你的程序中隱藏了一個bug,而不是'g_ascii_strup()'。 – ptomato 2012-02-09 09:53:04