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The implementation of exception handling in programming languages typically involves a fair amount of support from both a code generator and the runtime system accompanying a compiler. (It was the addition of exception handling to C++ that ended the useful lifetime of the original C++ compiler, Cfront. [18]) Two schemes are most common.
COBOL (/ ˈ k oʊ b ɒ l,-b ɔː l /; an acronym for "common business-oriented language") is a compiled English-like computer programming language designed for business use. It is an imperative, procedural, and, since 2002, object-oriented language. COBOL is primarily used in business, finance, and administrative systems for companies and ...
IBM System/3 BASIC was an interpreter for the BASIC programming language for the IBM System/34 midrange computer. [1]System/34 BASIC was first offered in 1978, and as such, contained many of the trappings that a BASIC program would have encountered in the time period of the TRS-80, or many other offerings of the 1970s and early 1980s. [2]
The first hardware exception handling was found in the UNIVAC I from 1951. Arithmetic overflow executed two instructions at address 0 which could transfer control or fix up the result. [16] Software exception handling developed in the 1960s and 1970s. Exception handling was subsequently widely adopted by many programming languages from the ...
IBM System/36 BASIC was an interpreter for the IBM System/36 midrange computer.. System/36 BASIC was first offered in 1983, and as such, contained many of the trappings that a BASIC program would have encountered in the time period of the IBM PC, the Commodore 64, the VIC-20, the TRS-80, or many other offerings of the Seventies and early Eighties.
The system is typically used in business and banking, and applications are often written in COBOL. COBOL programs were traditionally used with transaction processing systems like IMS and CICS. For a program running in CICS, special EXEC CICS statements are inserted in the COBOL source code.
C does not provide direct support to exception handling: it is the programmer's responsibility to prevent errors in the first place and test return values from the functions. In any case, a possible way to implement exception handling in standard C is to use setjmp/longjmp functions:
A parameter-driven sort-merge program, capable of handling very large volumes of data. Sort parameters could either be read in from the paper-tape reader, for one-off sorts, or "compiled" in (really just stored in the program). There were extensive user "hooks" where user-supplied code could be put in at various stages of the sort/merge process.