WebJun 25, 2012 · You need to escape backslashes in the file name argument: FILE *f = fopen("R:\\abc.dat","r"); This is because taken literally - UNnescaped - \a is a control character that typically means bell, i.e. sound/show a system alert; this is an invalid character in a file name. See Bell character:. In the C programming language (created in … WebOct 17, 2024 · 我们在学习C语言编程技术时,常常会用到fopen这个函数来打开指定的文件。这个函数如果打开文件失败的话,会返回NULL。今天我就用这个函数fopen写了一个程序,可是提示没有找到文件,这是为什么呢?今天,本篇经验就指出一种打开文件失败的原因。
fopen returns invalid argument in C - Stack Overflow
WebMay 7, 2024 · 函数简介. 函数功能: 打开一个文件. 函数原型: FILE * fopen (const char * path,const char * mode); 相关函数:open , fclose ,fopen_s [1] ,_wfopen. 所需库: < stdio.h >. 返回值: 文件顺利打开后,指向该流的文件指针就会被返回。. 若果文件打开失败则返回NULL,并把错误 ... WebThe C library function FILE *fopen(const char *filename, const char *mode) opens the filename pointed to, by filename using the given mode. Declaration. Following is the … like oversize clothes crossword
c - Inexplicable "Invalid Argument" error from …
http://www.codebaoku.com/it-c/it-c-280708.html Web一定是今天写代码没看黄历…. 这个函数可以在库函数发生错误的情况下,报告当前库函数使用发生错误的原因。. 这里既然我们发现fopen函数打开文件失败了,就可以在fopen函数后报告一下错误的原因是什么,接下来改代码如下:. 程序给出的结果,让我们清醒 ... WebMar 28, 2024 · For some reason the program is unable to open the file, and errno returns a value of 22, which corresponds to EINVAL, or invalid argument here. I am very confused as it appears that I am providing … like our page to be updated