Hallo , The Open Group Base Specifications Issue 6 says here: http://www.opengroup.org/onlinepubs/007904975/basedefs/stdint.h.html
"An N-bit signed type has values in the range -2**(N-1) or 1-2**(N-1) to 2**(N-1)-1, while an N-bit unsigned type has values in the range 0 to 2**(N-1)." Which is in this case: -2**31 = -2147483648 OR 1-2**31 = -2147483647 Using #define INT32_MIN (-21474836478) breaks the perl build on Cygwin because this constant is used in some typecasts, and it also gives my this warning everytime INT32_MIN is used: xyz.c:2: warning: this decimal constant is unsigned only in ISO C90 Both of the below patches are ok. for me to build perl and also there are no warnings issued, the first is the way it is defined on Linux too, the second seems to be alright according to the SUS specs: $ diff -udp stdint.h~ stdint.h --- stdint.h~ 2003-08-08 13:14:19.248036800 +0200 +++ stdint.h 2003-08-08 13:14:36.452776000 +0200 @@ -70,7 +70,7 @@ typedef unsigned long long uintmax_t; #define INT8_MIN (-128) #define INT16_MIN (-32768) -#define INT32_MIN (-2147483648) +#define INT32_MIN (-2147483647-1) #define INT64_MIN (-9223372036854775808) #define INT8_MAX (127) # END $ diff -udp stdint.h~ stdint.h --- stdint.h~ 2003-08-08 13:14:19.248036800 +0200 +++ stdint.h 2003-08-08 13:15:12.775004800 +0200 @@ -70,7 +70,7 @@ typedef unsigned long long uintmax_t; #define INT8_MIN (-128) #define INT16_MIN (-32768) -#define INT32_MIN (-2147483648) +#define INT32_MIN (-2147483647) #define INT64_MIN (-9223372036854775808) #define INT8_MAX (127) # END Gerrit -- =^..^=
