diff options
Diffstat (limited to 'sys/arm')
| -rw-r--r-- | sys/arm/include/_limits.h | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/sys/arm/include/_limits.h b/sys/arm/include/_limits.h index ce1cd20..321a769 100644 --- a/sys/arm/include/_limits.h +++ b/sys/arm/include/_limits.h @@ -39,6 +39,17 @@ #define __CHAR_BIT 8 /* number of bits in a char */ +/* + * According to ANSI (section 2.2.4.2), the values below must be usable by + * #if preprocessing directives. Additionally, the expression must have the + * same type as would an expression that is an object of the corresponding + * type converted according to the integral promotions. The subtraction for + * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an + * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). + * These numbers are for the default configuration of gcc. They work for + * some other compilers as well, but this should not be depended on. + */ + #define __SCHAR_MAX 0x7f /* max value for a signed char */ #define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */ @@ -87,12 +98,4 @@ #endif #define __WORD_BIT 32 -#define __DBL_DIG 15 -#define __DBL_MAX 1.7976931348623157E+308 -#define __DBL_MIN 2.2250738585072014E-308 - -#define __FLT_DIG 6 -#define __FLT_MAX 3.40282347E+38F -#define __FLT_MIN 1.17549435E-38F - #endif /* !_MACHINE__LIMITS_H_ */ |
