printf

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Is printf("%d", 1.0) undefined?

According to section 4.9.6.1 of the C89 draft, %d is a character that 开发者_如何转开发specifies the type of conversion to be applied.[详细]

2023-03-18 15:52 分类：问答
Fencepost conditions and portability for using of snprintf()?

Given the following code: const int size = 20; char buffer[size]; // From the Linux man page for snprintf():[详细]

2023-03-18 07:08 分类：问答
Get printf to ignore the negative sign on values of zero

I\'m trying to write a (mostly)* C program that sorts numerical results and eliminates duplicates. The results are stored as STRUCTS that contain a string, an integer, and 4 doubles. The doubles are w[详细]

2023-03-18 01:54 分类：问答
What's the point of a width smaller than a precision in printf()?

I came across some code with a line looking like: fprintf(fd, \"%4.8f\", ptr->myFlt); Not working with C++ much these days, I read the doc on printf and its ilk, and learned that in this case 4[详细]

2023-03-17 22:16 分类：问答
user-defined printer in OCaml

printf, fprintf, etc. : all accept the %a conversion. The manual says for %a: \"user-defined printer. Takes two arguments and apply the first one to outchan (the current output channel) and to the[详细]

2023-03-17 20:03 分类：问答
Why does fgets return a bad string?

I don\'t know how else to put it, but I know I\'m doing something wrong. char *temp2= \"/shares/mJim\";[详细]

2023-03-16 22:45 分类：问答
Are fprintf and fscanf reentrant when using different file handles

Can I have 2 threads in the same process calling fprintf or fscanf at the same time? One stream is wri开发者_运维问答tten to by the first thread and is read by the second thread and the otherstream i[详细]

2023-03-16 13:49 分类：问答
Thread communication via printf and scanf (linux)

Working in Linux and using C++. I have a program which initiates a thread. I need the main thread and the child thread to communicate via printf and scanf[详细]

2023-03-16 13:27 分类：问答
strcmp acts weird

I have a little program which will search for some string in a file. This string have a variable part on the end and is always preceded by a byte wich tell the size.[详细]

2023-03-15 05:51 分类：问答
Getting different output with printf and cout - C++

I have a string I am trying to print. when I 开发者_开发知识库used cout, it outputs perfectly but using printf leaves it mangled.[详细]

2023-03-14 11:03 分类：问答