Zilog ZUSBOPTS Manual do Utilizador descarregar pdf (Página 419)

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UM017105-0511

Zilog Developer Studio II – ZNEO™

User Manual

391

Appendix C. C Standard Library

As described in the Run-Time Library section on page 177, the ZNEO C-Compiler pro-

vides a collection of run-time libraries. The largest section of these libraries consists of an

implementation of much of the C Standard Library.

The ZNEO C-Compiler is a conforming freestanding 1989 ANSI C implementation with

some exceptions. In accordance with the definition of a freestanding implementation, the

compiler supports the required standard header files <

float.h>, <limits.h>,

stdarg.h>, and <stddef.h>. It also supports additional standard header files and

Zilog-specific nonstandard header files. The latter are described in the Run-Time Library

section on page 177.

The standard header files and functions are, with minor exceptions, fully compliant with

the ANSI C Standard. The deviations from the ANSI Standard in these files are summa-

rized in Library Files Not Required for Freestanding Implementation

– see page 196. The

standard header files provided with the compiler are listed in Table 34 and described in

detail in the Standard Header Files

section on page 392. The following sections describe

the use and format of the standard portions of the run-time libraries:

•

Standard Header Files – see page 392

•

Standard Functions – see page 407

Table 34. Standard Headers

Header Description Page

<assert.h> Diagnostics 394

<ctype.h> Character-handling functions 394

<errno.h> Error numbers 393

<float.h> Floating-point limits 396

<limits.h> Integer limits 395

<math.h> Math functions 398

<setjmp.h> Nonlocal jump functions 401

<stdarg.h> Variable arguments functions 401

<stddef.h> Standard defines 393

<stdio.h> Standard input/output functions 402

<stdlib.h> General utilities functions 403

<string.h> String-handling functions 405

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