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About 3,937 papers for “Preprocessor”

Preprocessor

Paul J. Lucas · Apress eBooks · 2025

One of C’s quirks is that it has a separate preprocessor that’s called by the C compiler to “preprocess” source files before compiling them. This chapter covers the preprocessor, its language, compilation phases, object-like macros, predefined macros, conditional compilation, file inclusion, function-like macros, X macros, and gives some useful macros.

Cited by 0

Preprocessor

Mikael Olsson · Apress eBooks · 2013

The preprocessor is a program invoked by the compiler that modifies the source code before the actual compilation takes place. This modification is done according to the preprocessor directives that are included in the source files. The directives are easily distinguished from normal programming code in that they all start with a hash sign (#). They must always appear as the first non-whitespace character on a line. Below is a table of the preprocessor directives available in C++ and their function.

Cited by 0

Walsh Preprocessor.

Van Cleave,James · Defense Technical Information Center (DTIC) · 1980

This report describes a technique and equipment for detecting pulsed signals in a high noise environment. The performance of this technique approaches matched filter techniques for signals where the pulse parameters are not known a-priori. A common problem in the area of signal processing is that of the detection of pulse signals having very low signal-to-noise ratios (SNR). This problem is worsened when major signal parameters (pulse width and time of arrival) are not known. The purpose of this program was to develop an improved exploratory development model of a system to detect the presence of low SNR signals, on a single pulse-by-pulse basis. The technique chosen for this program was the use of the Walsh Transform as the basis for a two transform digital filter. This technique has been demonstrated by AEL as a result of in-house IR/D programs and implemented to USAF preliminary requirements under a previous contract for a Walsh Adaptive Filter (RADC Report TR-78-82 for Contract F30602-76-C-0299). The current program was to further develop the technique and to fabricate a programmable unit suitable for test and evaluation purposes against a variety of potential applications. The system name, Walsh Preprocessor (WP), was derived from the use of a Walsh transform to adaptively filter signals of varying pulse widths and repetition rates.

Cited by 0

Preprocessor Directives

Apress eBooks · 2007

The source code specifies the definition of a program. The preprocessor directives instruct the compiler how to treat the source code. For example, under certain conditions, you might want the compiler to ignore portions of the code, and under other conditions, you might want that code compiled. The preprocessor directives give you those options and several others.KeywordsSource CodeLine NumberRegion DirectiveError MessageWarning MessageThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Cited by 1

The Preprocessor

Carlos Augusto Fernandes de Oliveira · Apress eBooks · 2013

Objective-C comes with a powerful preprocessor that can simplify the input of repetitive code into a program. For example, the preprocessor can be used to import header files, which are used to make class definitions available to other parts of the application. The preprocessor is also used to define macros, which can work both as constants or to perform simple substitution based on arguments.

Cited by 0

Estonian TTS preprocessor

unav · European Language Grid · 2022

Container (docker) based on <a href="https://github.com/TartuNLP/tts_preprocess_et" target="_blank">preprocessing script for Estonian text-to-speech applications</a> with interface compliant with <a href="https://european-language-grid.readthedocs.io/en/release1.0.0/all/LTInternalAPI.html#" target="_blank">ELG requirements</a>.

Cited by 0Open access

Aprepro - Algebraic Preprocessor

OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 2017

Aprepro is an algebraic preprocessor that reads a file containing both general text and algebraic, string, or conditional expressions. It interprets the expressions and outputs them to the output file along witht the general text. Aprepro contains several mathematical functions, string functions, and flow control constructs. In addition, functions are included that, with some additional files, implement a units conversion system and a material database lookup system.

Cited by 0Open access

The ciao preprocessor

Bueno Carrillo, Francisco, Hermenegildo, Manuel V., López García, Pedro et al. · UPM Digital Archive (Technical University of Madrid) · 2007

Cited by 0Open access

Hard Preprocessor Study.

Dennis E. Berglund, I Goodman, W. J. Patterson et al. · 1976

Abstract : The processing requirements for three preprocessing applications for a microprocessor are determined. The three applications examined are Kalman filtering, radar beamsteering, and the Global Positioning System user equipment computer. The estimated processor requirements include throughput, memory capacity, input/output rates, special instructions and hardware. The device technologies (TTL, ECL, IIL, and MOS) are examined to determine electrical and radiation performance. The available microprocessors are surveyed and a microprocessor architecture suitable for the possible applications is recommended.

Cited by 0