eCosTM Reference Manual
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# Chapter 19. Package: C Library

#### Macro name

CYGPKG_LIBC

#### Type

Boolean

#### Description

This package enables compatibility with the ISO C standard - ISO/IEC 9899:1990. This allows the user application to use well known standard C library functions, and in eCos starts a thread to invoke the user function main()

# Option: Inline versions of <ctype.h> functions

#### Macro name

CYGIMP_LIBC_CTYPE_INLINES

#### Type

Boolean

#### Description

This option chooses whether the simple character classification and conversion functions (e.g. isupper(), isalpha(), toupper(), etc.) from <ctype.h> are available as inline functions. This may improve performance and as the functions are small, may even improve code size.

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