子程序使用错误的值 [英] Subroutine uses wrong value
问题描述
我有一个从另一个接收文件名的子程序。这个子程序与其他三个调用程序一起工作，但今天我添加了另一个，并且由于某种原因它找到了一些其他文件名。嘿，我调用例程xml_load_file（DEALS），其中DEALS在别处被定义为../ options / deals.xml。参数定义为char *。如果我在xml_load_file（）的开头打印出文件名，它会显示一个完全不同的路径和文件：../carts/12345这是一个合法的文件名，但我不知道它是如何得到的。
我为循环真正抛出的是我创建的test_load（char * p）除了打印出* p之外什么也没做什么，把它放在与xml_load_file（）相同的文件中，并显示正确的文件名。
这对任何人来说都响了吗？在Linux上使用gcc。
I have a subroutine that receives a filename from another. This sub has worked with three other calling programs but, today, I added another and for some reason it finds some other file name to use. iow, I call the routine xml_load_file(DEALS) where DEALS is elsewhere defined as "../options/deals.xml". The argument is defined as a char*. If I print out the filename at the beginning of xml_load_file(), it shows an entirely different path and file: ../carts/12345 which is a legitimate filename but I don''t have a clue how it got that.
What really throws me for a loop is I create "test_load(char *p)" which does nothing but print out what *p is, put it in the same file as xml_load_file() and that shows the correct file name.
Does this ring a bell with anyone? Using gcc on Linux.
推荐答案
对我来说听起来很奇怪Doc。
我会使用gdb逐步完成程序如果代码检查不明显，请看看实际发生了什么。
Sounds very strange to me Doc.
I would step through the program using gdb and see what is actually happening if it is not obvious from code examination.
在行之间读取，我假设程序的相关部分看起来像这样：
Reading between the lines, I assume that the relevant portion of your program looks something like this:
几乎所显示的内容。从主要作品调用它。 test_load（），虽然我以不同方式显示，但没有。从这个特定子程序调用不会。我也把文件的strcpy作为[FILENAME]并用指针调用了sub但是它失败了。
如果我把一个打印声明放在xml_load_file（）的第一行，它显示错误的文件名;它永远不会收到正确的。
Pretty much what you show. Calling it from main works. test_load(), though I show it differently, does not. Calling from this one particular subroutine does not. I also did a strcpy of the filename to a s[FILENAME] and called the sub with a pointer to that but it fails.
What mystifies me is if I put a print statement on the first line of xml_load_file(), it shows the wrong filename; it never receives the correct one.
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