Embedded Artistry libc
C Standard Library Support for Bare-metal Systems
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Pages
float.h
Go to the documentation of this file.
1
#ifndef FLOAT_H__
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#define FLOAT_H__
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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#if 0
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//TODO
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int
__flt_rounds(
void
);
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#define FLT_ROUNDS (__flt_rounds())
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#endif
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#define FLT_RADIX 2
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#define FLT_TRUE_MIN 1.40129846432481707092e-45F
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#define FLT_MIN 1.17549435082228750797e-38F
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#define FLT_MAX 3.40282346638528859812e+38F
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#define FLT_EPSILON 1.1920928955078125e-07F
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// TODO: is this correct? I see this other value... #define FLT_EPSILON 1.19209290E-07F
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// ARM also says this: 1.19209290e-7F
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// Check against http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0491f/Babbfeda.html
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#define FLT_MANT_DIG 24
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#define FLT_MIN_EXP (-125)
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#define FLT_MAX_EXP 128
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#define FLT_HAS_SUBNORM 1
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#define FLT_DIG 6
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#define FLT_DECIMAL_DIG 9
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#define FLT_MIN_10_EXP (-37)
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#define FLT_MAX_10_EXP 38
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#define DBL_TRUE_MIN 4.94065645841246544177e-324
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#define DBL_MIN 2.22507385850720138309e-308
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#define DBL_MAX 1.79769313486231570815e+308
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#define DBL_EPSILON 2.22044604925031308085e-16
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#define DBL_MANT_DIG 53
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#define DBL_MIN_EXP (-1021)
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#define DBL_MAX_EXP 1024
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#define DBL_HAS_SUBNORM 1
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#define DBL_DIG 15
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#define DBL_DECIMAL_DIG 17
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#define DBL_MIN_10_EXP (-307)
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#define DBL_MAX_10_EXP 308
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#define LDBL_HAS_SUBNORM 1
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#define LDBL_DECIMAL_DIG DECIMAL_DIG
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// Architecture-specific Definitions
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#include <_types/_float.h>
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#ifdef __cplusplus
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}
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#endif
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#endif // FLOAT_H__
include
float.h
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