On a 64-bit Windows computer, 'long' is a 32-bit type, and all pointers are 64-bit types. ../lib/odp-util.c:5834:5: error: cast to smaller integer type 'unsigned long' from 'void *' [-Werror,-Wvoid-pointer-to-int-cast] Just want to point out that the purpose of threads is, +1 absolutely true, but if you take you time to write struct {}, you can save a lot of troubles in the future when you want to receive/send more data then just an int. C99 defines the types "intptr_t" and "uintptr_t" which do . Replacing broken pins/legs on a DIP IC package, How to handle a hobby that makes income in US. Implementation-dependent. Don't pass your int as a void*, pass a int* to your int, so you can cast the void* to an int* and copy the dereferenced pointer to your int. How Intuit democratizes AI development across teams through reusability. Making statements based on opinion; back them up with references or personal experience. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Connect and share knowledge within a single location that is structured and easy to search. Implicit Type Conversion is also known as 'automatic type conversion'. I agree passing a dynamically allocated pointer is fine (and I think the best way). As a result of the integer division 3/2 we get the value 1, which is of the int type. Acidity of alcohols and basicity of amines. The problem was there before, you just are being notified of it. vegan) just to try it, does this inconvenience the caterers and staff? Type conversions - cplusplus.com Is it suspicious or odd to stand by the gate of a GA airport watching the planes? If the source type is bool, the value false is converted to zero and the value true is converted to the value one of the destination type (note that if the destination type is int, this is an integer promotion, not an integer conversion). You are getting warnings due to casting a void* to a type of a different size. (void *)i Error: cast to 'void *' from smaller integer type 'int' PS: UBUNTUCLANG3.5 clang -O0 -std=gnu11 -march=native -lm -lpthread pagerank.c -o pagerank c pthreads 4 10.3k 2 21 2015-06-05 If int is no larger than pointer to void then one way to store the value is by simply copying the bytes: int i .
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