Scroll Down to See All▾
abortabsacosasctimeasctime_rasinassertatanatan2atexitatofatoiatolbsearchbtowccalloccatclosecatgetscatopenceilclearerrclockcoscoshctimectime_rdifftimediverferfcexitexpfabsfclosefdopenfeofferrorfflushfgetcfgetposfgetsfgetwcfgetwsfopenfprintffputcfputwsfreadfreefreopenfrexpfscanffseekfsetposftellfwidefwprintffwritefwscanfgetcgetchargetenvgetwcgetwchargmtimegmtime_rhypotisalnumisalphaisasciiisblankiscntrlisdigitisgraphislowerisprintispunctisspaceisupperiswalnumiswalphaiswblankiswcntrliswctypeiswdigitiswgraphiswloweriswprintiswpunctiswspaceiswupperiswxdigitisxdigitj0j1jnlabsldexpldivlocaleconvlocaltimelocaltime_rloglog10longjmpmallocmblenmbrlenmbrtowcmbsinitmbsrtowcsmbstowcsmbtowcmemchrmemcmpmemcpymemmovememsetmktimemodfnextafternextafterlnexttowardnexttowardlnl_langinfoperrorpowprintfputcputcharputenvputsputwcputwcharqsortquantexpd32quantexpd64quantexpd128quantized32quantized64samequantumd32raiserandrand_rreallocregcompregerrorregexecregfreeremoverenamerewindscanfsetbufsetjmpsetlocalesetvbufsignalsinsinhsnprintfsprintfsqrtsrandsscanfstrcasecmpstrcatstrchrstrcmpstrcollstrcpystrcspnstrerrorstrfmonstrftimestrlenstrncasecmpstrncatstrncmpstrncpystrpbrkstrptimestrrchrstrspnstrstrstrtodstrtod32strtod64strtod128strtofstrtokstrtok_rstrtolstrtoldstrtoulstrxfrmswprintfswscanfsystemtantanhtimetime64tmpfiletmpnamtoasciitolowertouppertowctranstowlowertowupperungetcungetwcva_argva_copyva_endva_startvfprintfvfscanfvfwprintfvfwscanfvprintfvscanfvsprintfvsnprintfvsscanfvswprintfvswscanfvwprintfvwscanfwcrtombwcscatwcschrwcscmpwcscollwcscpywcscpywcsftimewcslenwcsncatwcsncmpwcsncpywcspbrkwcsptimewcsrchrwcsrtombswcsspnwcsstrwcstodwcstod32wcstod64wcstod128wcstofwcstokwcstolwcstoldwcstombswcstoulwcsxfrmwctobwctombwctranswctypewcwidthwmemchrwmemcmpwmemcpywmemmovewmemsetwprintfwscanfy0y1yn



Function Details : quantized128

long doublequantized128(long double value,int levels) ;

Return Type : long double

A floating-point type with extended precision, typically larger than `double` and used for high-precision arithmetic. The size and precision depend on the platform but are often 80 or 128 bits.
Read about return values of quantized128 function .

1st Parameter Type : long double

A floating-point type with extended precision, typically larger than `double` and used for high-precision arithmetic. The size and precision depend on the platform but are often 80 or 128 bits.

1st Parameter

The input 128-bit floating-point value to be quantized.

2nd Parameter Type : int

Integer type (typically 4 bytes, -2,147,483,648 to 2,147,483,647)

2nd Parameter

The number of discrete levels to which the input value will be quantized.

Read more about parameters of quantized128 in parameters section
The quantized128function in C language Quantizes a decimal floating-point number (_Decimal128) to the same exponent as another. Note: This is part of the optional decimal floating-point arithmetic support.
The quantized128 function sets the quantum exponent of x to the quantum exponent of y, while trying to keep the value the same. This function provides the highest precision among the quantize family and is crucial for applications requiring extreme precision in decimal calculations, such as high-precision financial modeling or scientific computations.
The quantized128function takes 2 parameters:
  • •
    long double `value`: The input 128-bit floating-point value to be quantized.
  • •
    int `levels`: The number of discrete levels to which the input value will be quantized.
Quantizes the input 128-bit floating-point value `value` into one of `levels` discrete levels. Designed for applications requiring high precision but allowing quantization for compression, numerical analysis, or high-performance computations. Returns the quantized value as a `long double`.
The quantized128 function return value :
  • Returns the quantized value of x with the quantum exponent of y

Output

This example demonstrates how quantized128 adjusts the quantum exponent of x to match that of y, effectively rounding x to 15 decimal places.