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, 1242👍, 0💬

💬 2021-01-21 John Doe: Hello

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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, 1243👍, 0💬

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, 1202👍, 0💬

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