-qldbl128

Category

Floating-point and integer control

Pragma equivalent

#pragma options [no]ldbl128

Purpose

Increases the size of long double types from 64 bits to 128 bits.

Syntax

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        .-ldbl128---.   
>>- -q--+-noldbl128-+------------------------------------------><

Defaults

-qldbl128

Usage

The #pragma options directive must appear before the first C or C++ statement in the source file, and the option applies to the entire file.

Predefined macros

Examples

To compile myprogram.c so that long double types are 128 bits, enter:
xlc myprogram.c -qldbl128