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C251 Introduction 
Compiling Programs 
Environment Settings Command Prompt ERRORLEVEL Output Files Listing (LST) File Object (OBJ) File Preprocessor (I) File Source (SRC) File Directives Directive List Reference ASM ASMEXPAND BROWSE CODE COND DEBUG DEFINE DISABLE EJECT ENDASM FIXDRK FLOAT64 FLOATFUZZY FUNCTIONS HOLD HPTR INCDIR INTERVAL INTR2 INTVECTOR LARGE LISTINCLUDE MAXARGS MODBIN NAME NOALIAS NOAMAKE NOASMEXPAND NOCASE NOCOND NOEXTEND NOINTVECTOR NOOBJECT NOPRINT NOREGPARMS NVM_CONST OBJECT OBJECTADVANCED OPTIMIZE ORDER PACK PAGELENGTH PAGEWIDTH PARM251 PARM51 PREPRINT PREPRINTONLY PRINT REGFILE REGPARMS RENAMECODE RESTORE ROM SAVE SMALL SRC STRING SYMBOLS TABS TINY UNSIGNED_CHAR USERCLASS WARNING WARNINGLEVEL XSMALL XTINY Language Extensions Preprocessor Advanced Programming Error Messages Library Reference AppendixFLOATFUZZY Compiler Directive
| Abbreviation | FF |
| Arguments | A number from 0-7. |
| Default | FLOATFUZZY (3) |
| µVision | Options — C251 — Bits to round for float compare. |
| Description | The FLOATFUZZY directive specifies the number of bits rounded before comparing floating-point numbers. The default value of 3 specifies that the three least significant bits of a float value are rounded before the comparison. |
| Example |
C251 MYFILE.C FLOATFUZZY (2)
#pragma FF (0)
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