printf

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snprintf in signal handler creates segmentation fault if started with valgrind

This very simple C program gives me a segmentation fault when running it with valgrind. Its runs fine when started normal.[详细]

2023-03-21 08:06 分类：问答
How to print a block of data in Ocaml?

I would like to print some rectangles one by one in a terminal like that: 4 57 8 25 3: bool6: int Which represents that, given an array a, the zone from a([2,3], [4,5]) is bool and the zone from a[详细]

2023-03-21 04:20 分类：问答
Understanding printf better - What does it print with "%c" when the value provided is negative?

In Kernighan & Ritchie, it says that \"all printable characters are positive when though char datatype being signed or unsigned is machine-dependent.\"[详细]

2023-03-21 03:42 分类：问答
printf precision

I am writing a program in C and I have several printf statements for debugging. Is there a way to change the precision for a HEX output on开发者_JAVA技巧 printf? Example. I have 0xFFF but I want it to[详细]

2023-03-20 16:31 分类：问答
Strange error with #define in c

I know that #define replaced before the compiling to real values. so why the first code here compile with no error, and the 2nd not?[详细]

2023-03-20 07:02 分类：问答
Bash: Variable substitution in quoted string looks like something from the Twilight Zone

I\'ve got a bash script that\'s reading essentially the output of telnet (actually socat to a unix domain socket).[详细]

2023-03-19 19:25 分类：问答
c printf pretty print formattion

I am printing a series of lines.The length of the lines are different.Sometimes I have to add spaces at the end of the line to align the lines.And at the end of each line I add \"\\n\" character.The p[详细]

2023-03-19 10:49 分类：问答
sprintf for loop segfault

Hello I need help understanding sprintf and C character arrays. I am coming from a Java background and understand C up to pointers(I\'ve been teaching myself C :/).[详细]

2023-03-19 07:12 分类：问答
How can I trigger an action after an OCaml printf with user-supplied format string

I have a simple function that prints a string and exits: let fatal s = print_string \"Log: \"; print_endline s;[详细]

2023-03-19 04:47 分类：问答
generic way to print out variable name in c++

given a class struct { int a1; bool a2; ... char* a500; ... char a10000; } 开发者_JS百科 I want to print or stream out[详细]

2023-03-18 17:58 分类：问答