I’m trying to find a good way to print leading 0, such as 01001 for a ZIP Code. While the number would be stored as 1001, what is a...
I can never understand how to print unsigned long datatype in C. Suppose unsigned_foo is an unsigned long, then I try: printf("%lu\n", unsigned_foo) printf("%du\n", unsigned_foo) printf("%ud\n", unsigned_foo) printf("%ll\n", unsigned_foo)...
#include <stdio.h> int main() { unsigned long long int num = 285212672; //FYI: fits in 29 bits int normalInt = 5; printf("My number is %d bytes wide and its...
What is the difference between printf() and cout in C++? 16 Answers 16 I’m surprised that everyone in this question claims that std::cout is way better than printf, even...
I have a variable of type size_t, and I want to print it using printf(). What format specifier do I use to print it portably? In 32-bit machine, %u...
I can print with printf as a hex or octal number. Is there a format tag to print as binary, or arbitrary base? I am running gcc. printf("%d %x...
What is the correct format specifier for double in printf? Is it %f or is it %lf? I believe it’s %f, but I am not sure. Code sample #include...
The printf function takes an argument type, such as %d or %i for a signed int. However, I don’t see anything for a long value. 7 s 7 Put...
Since ANSI C99 there is _Bool or bool via stdbool.h. But is there also a printf format specifier for bool? I mean something like in that pseudo code: bool...
Why does printf not flush after the call unless a newline is in the format string? Is this POSIX behavior? How might I have printf immediately flush every time?...