COHERENT manpages
This page displays the COHERENT manpage for manifest constant [Overview].
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manifest constant -- Overview A manifest constant is a constant that is given a name so it can be defined differently under different computing environments. An example is EOF, the end-of-file marker, which has wildly different representations under different operating systems. Note, too, that numerals are manifest constants by definition. The use of manifest constants in programs helps to ensure that code is portable by isolating the definition of these elements in a single header file, where they need to be changed only once. The header file limits.h defines a set of macros that express certain numeric limits of COHERENT's implementation of C. See Also __DATE__, __FILE__, __LINE__, __STDC__, __TIME__, C preprocessor, EOF, EXIT_FAILURE, EXIT_SUCCESS, limits.h, macro, MB_CUR_MAX, NULL, RAND_MAX, portability, Programming COHERENT