errno_name. NXP CodeWarrior Development Studio

errno_name

unsigned long signed long long (*) unsigned long long

Types with (*) are only considered with "#pragma enums_signed on". This option has no effect when #pragma enumsalwaysint is "on".

34.5 errno_name

Tells the optimizer how to find the errno

identifier.

Syntax

#pragma errno_name id | ...

Remarks

When this pragma is used, the optimizer can use the identifier errno

(either a macro or a function call) to optimize standard C library functions better. If not used, the optimizer makes worst-case assumptions about the effects of calls to the standard C library.

NOTE

The MSL C library already includes a use of this pragma, so you would only need to use it for third-party C libraries.

If errno

resolves to a variable name, specify it like this:

#pragma errno_name _Errno

If errno

is a function call accessing ordinarily inaccessible global variables, use this form:

#pragma errno_name ...

Otherwise, do not use this pragma to prevent incorrect optimizations.

This pragma does not correspond to any panel setting. By default, this pragma is unspecified (worst case assumption).

34.6 explicit_zero_data

Controls the placement of zero-initialized data.

CodeWarrior Development Studio for Power Architecture Processors Build Tools Reference Manual, Rev.

10.6, 02/2014

506 Freescale Semiconductor, Inc.