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https://stackoverflow.com/questions/1523483/does-gcc-support-long-long-int
Yes GCC does support long long int, which is a part of C99 standard. The standard does not mandate its size in bits, but required values of LLONG_MIN and LLONG_MAX in <limits.h> imply it's at least 64-bit (exact 64-bit wide integer types are int64_t/uint64_t from <stdint.h>). LLONG_MIN must be at most -9223372036854775807
https://stackoverflow.com/questions/1523483/does-gcc-support-long-long-int?noredirect=1
Does GCC support: long long int which would be a 64-bit integer? Also, is long long int part of the standard?
https://gcc.gnu.org/onlinedocs/gcc/Long-Long.html
6.10 Double-Word Integers. ISO C99 and ISO C++11 support data types for integers that are at least 64 bits wide, and as an extension GCC supports them in C90 and C++98 modes. Simply write long long int for a signed integer, or unsigned long long int for an unsigned integer.
https://www.linuxquestions.org/questions/programming-9/is-not-%27long-long%27-of-8-bytes-in-gcc-781632/
Jan 13, 2010 · Both 'long long' and 'double' are 64 bit data types in gcc but why can't I insert a value greater than 2^31-1 (ie 32bit) in a long long type variable. Is not 'long long' of 8 bytes in gcc? Download your favorite Linux distribution at LQ ISO .
https://stackoverflow.com/questions/15367603/long-long-long-is-too-long-for-gcc
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https://stackoverflow.com/questions/13903785/implementation-of-type-long-double-with-gcc-and-c11
I've tried searching for information on long double, and so far I understand it is implemented differently by compilers. When using GCC on Ubuntu (XUbuntu) Linux 12.10 I get this: double PId = ac...
https://stackoverflow.com/questions/32948032/newlib-nano-long-long-support
long long int val = 1234; pritnf("%lld", val); Adding "-u _printf_float" linker flag does not solve this. It does cause the code size to increase by 9kB, but it only seems to be adding float support, without "long long" support. Linking against newlib (removing the "--specs=nano.specs" flag) - although does solve the issue - is not acceptable ...
https://gcc.gnu.org/projects/cxx-status.html
C++98 Support in GCC GCC has full support for the 1998 C++ standard as modified by the 2003 technical corrigendum and some later defect reports, excluding the export feature which was later removed from the language.. This mode is the default in GCC versions prior to 6.1; it can be explicitly selected with the -std=c++98 command-line flag, or -std=gnu++98 to enable GNU extensions as well.
https://gcc.gnu.org/c99status.html
Status of C99 features in GCC. C99 is substantially completely supported as of GCC 4.5 (with -std=c99 -pedantic-errors used; -fextended-identifiers also needed to enable extended identifiers before GCC 5), modulo bugs and floating-point issues (mainly but not entirely relating to optional C99 features from Annexes F and G). The following table gives more details of the C99 support in different ...
https://sourceforge.net/p/mspgcc/mailman/message/19206674/
Hello, On Thu, Apr 24, 2008 at 05:22:28PM +0200, Freddy Spierenburg wrote: > The attached patch does add this support. Unfortunately the yesterday patch featured a grave bug. I overlooked the _ulong variable. Hence my patch could not handle the MSB part of the long long, pretty pointless. In solving this bug I could take two directions.
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