Analysis of information sources in references of the Wikipedia article "Transclusion" in English language version.
Many other changes occurred around 1972-3, but the most important was the introduction of the preprocessor, partly at the urging of Alan Snyder [Snyder 74], but also in recognition of the utility of the the[sic] file-inclusion mechanisms available in BCPL and PL/I. Its original version was exceedingly simple, and provided only included files and simple string replacements: #include and #define of parameterless macros. Soon thereafter, it was extended, mostly by Mike Lesk and then by John Reiser, to incorporate macros with arguments and conditional compilation. The preprocessor was originally considered an optional adjunct to the language itself.Alt URL Archived 2020-02-04 at the Wayback Machine
Many other changes occurred around 1972-3, but the most important was the introduction of the preprocessor, partly at the urging of Alan Snyder [Snyder 74], but also in recognition of the utility of the the[sic] file-inclusion mechanisms available in BCPL and PL/I. Its original version was exceedingly simple, and provided only included files and simple string replacements: #include and #define of parameterless macros. Soon thereafter, it was extended, mostly by Mike Lesk and then by John Reiser, to incorporate macros with arguments and conditional compilation. The preprocessor was originally considered an optional adjunct to the language itself.Alt URL Archived 2020-02-04 at the Wayback Machine
Even before the advent of the Interdata machine, it as realized, as mentioned above, that many programs depended to an undesirable degree not only on UNIX I/O conventions but on details of particularly favorable buffering strategies for the PDP-11. A package of routines, called the "portable I/O library," was written by M. E. Lesk and implemented on the Honeywell and IBM machines as well as the PDP-11 in a generally successful effort to overcome the deficiencies of earlier packages
Alternatives to Wrapper #ifndef : CPP supports two more ways of indicating that a header file should be read only once. Neither one is as portable as a wrapper '#ifndef' and we recommend you do not use them in new programs, with the caveat that '#import' is standard practice in Objective-C. [...] Another way to prevent a header file from being included more than once is with the '#pragma once' directive. If '#pragma once' is seen when scanning a header file, that file will never be read again, no matter what.
Even before the advent of the Interdata machine, it as realized, as mentioned above, that many programs depended to an undesirable degree not only on UNIX I/O conventions but on details of particularly favorable buffering strategies for the PDP-11. A package of routines, called the "portable I/O library," was written by M. E. Lesk and implemented on the Honeywell and IBM machines as well as the PDP-11 in a generally successful effort to overcome the deficiencies of earlier packages
Many other changes occurred around 1972-3, but the most important was the introduction of the preprocessor, partly at the urging of Alan Snyder [Snyder 74], but also in recognition of the utility of the the[sic] file-inclusion mechanisms available in BCPL and PL/I. Its original version was exceedingly simple, and provided only included files and simple string replacements: #include and #define of parameterless macros. Soon thereafter, it was extended, mostly by Mike Lesk and then by John Reiser, to incorporate macros with arguments and conditional compilation. The preprocessor was originally considered an optional adjunct to the language itself.Alt URL Archived 2020-02-04 at the Wayback Machine
Even before the advent of the Interdata machine, it as realized, as mentioned above, that many programs depended to an undesirable degree not only on UNIX I/O conventions but on details of particularly favorable buffering strategies for the PDP-11. A package of routines, called the "portable I/O library," was written by M. E. Lesk and implemented on the Honeywell and IBM machines as well as the PDP-11 in a generally successful effort to overcome the deficiencies of earlier packages
INCLUDE: Function: To save the programmer effort by automatically incorporating library subroutines into the source program.
Many other changes occurred around 1972-3, but the most important was the introduction of the preprocessor, partly at the urging of Alan Snyder [Snyder 74], but also in recognition of the utility of the the[sic] file-inclusion mechanisms available in BCPL and PL/I. Its original version was exceedingly simple, and provided only included files and simple string replacements: #include and #define of parameterless macros. Soon thereafter, it was extended, mostly by Mike Lesk and then by John Reiser, to incorporate macros with arguments and conditional compilation. The preprocessor was originally considered an optional adjunct to the language itself.Alt URL Archived 2020-02-04 at the Wayback Machine
Even before the advent of the Interdata machine, it as realized, as mentioned above, that many programs depended to an undesirable degree not only on UNIX I/O conventions but on details of particularly favorable buffering strategies for the PDP-11. A package of routines, called the "portable I/O library," was written by M. E. Lesk and implemented on the Honeywell and IBM machines as well as the PDP-11 in a generally successful effort to overcome the deficiencies of earlier packages
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