How Can I Use Decimal Data Types in C When My Compiler Doesn\'t Support Them?

Using Decimal Data Types in C

In C , decimal data types like decimal32, decimal64, and decimal128 are provided by the Decimal TR (Technical Report). However, the implementation of these types varies across compilers.

Compiler Support

• Some compilers, such as gcc, implement the Decimal TR and provide the corresponding extensions in C .
• Other compilers may not support these types.

Options for Using Decimal Data Types

If your compiler does not support decimal types, consider the following options:

• IBM decNumber Library: Create a wrapper for this library to access decimal functionality.
• TR Proposal: Engage in the efforts to update and standardize the Decimal TR. An implementation is available, but its public release is uncertain.

Note: The Decimal TR and its implementation are subject to change as the standardization process progresses.

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