What printf format should I use for a typedef like size_t when I don't know whether it is long or some other type?

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Use a cast to convert the value to a known, conservatively-sized type, then use the printf format matching that type. For example, to print the size of a type, you might use
printf("%lu", (unsigned long)sizeof(thetype));

2015-11-04, 1740👍, 0💬

💬 2021-01-21 John Doe: Hello

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I thought that ANSI function prototypes were supposed to guard against argument type mismatches.
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Why doesnt the call scanf work?
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Why doesnt this code work?
Why doesn't this code: double d; scanf("%f", &d); work? Unlike printf, scanf uses %lf for values of type double, and %f for float.%f tells scanf to expect a pointer-to-float, not the pointer-to-double you gave it. Either use %lf, or declare the receiving variable as a float. 2015-10-30, 1773👍, 0💬

Why doesnt long int work?
Why doesn't long int n = 123456; printf("%d\n", n); work? Whenever you print long ints you must use the l (lower case letter ``ell'') modifier in the printf format (e.g. %ld). printf can't know the types of the arguments which you've passed to it, so you must let it know by using the correct format ... 2015-11-09, 1756👍, 0💬

What printf format should I use for a typedef like size_t when I don't know whether it is long or some other type?
What printf format should I use for a typedef like size_t when I don't know whether it is long or some other type? Use a cast to convert the value to a known, conservatively-sized type, then use the printf format matching that type. For example, to print the size of a type, you might use printf("%lu... 2015-11-04, 1741👍, 0💬

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