Newest Questions
877 questions
17
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4
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3k
views
Why did C99 have to add the underscored keywords for _Bool _Complex _Imaginary but not for inline or restrict?
C99 introduced the following keywords: _Bool _Complex _Imaginary ...
- 10.3k
1
vote
2
answers
284
views
How does the GNU Assembler deal with the directives for changing the syntax from AT&T to Intel or vice versa if those directives are in if-branching?
GNU Assembler, when targetting x86, has directives .att_syntax and .intel_syntax for switching between Intel Syntax and AT&T ...
- 1,945
13
votes
2
answers
806
views
What optimizations are possible with unsequenced operators?
In C, most binary operators do not specify which operand will be evaluated first:
...
- 10.3k
6
votes
1
answer
1k
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Why does the `target` attribute in HTML require a string starting with an underscore, such as `"_blank"`? Why not simply `"blank"`?
To specify in HTML that an <a> link needs to opened in a new tab or a new window, you use the following syntax:
...
- 1,945
4
votes
1
answer
310
views
Are there OO languages which implement objects as persistent data-structures?
I am an object-oriented developer professionally, but I have researched functional programming and (believe that) I understand the key principles which to varying degrees are applied in FP languages.
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- 204
6
votes
4
answers
535
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Do any notable programming languages other than Fortran mark line continuation at the beginning of the following line?
In the first high-level language (FORTRAN), lines of text would by default be treated as individual statements, except that a card which contained something other than an asterisk or C in column 1 and ...
- 2,252
1
vote
1
answer
303
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C specification's "sequenced before" and "pair-wise relation"
Paragraph 5.2.2.4 of ISO 9899:2024 says
Sequenced before is an asymmetric, transitive, pair-wise relation between evaluations executed by a single thread...
What does the pair-wise relation mean? Is ...
- 133
-1
votes
1
answer
284
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Strongest criticisms of object-oriented languages? [closed]
Linus Torvalds has famously attacked the object-oriented language C++, but he didn't offer many specifics about why, besides saying C++ uses "inefficient abstracted programming models". What ...
- 109
1
vote
3
answers
283
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What to do with productions that have multiple LHS?
In the C language, a function call has a parameter list of assignment-expressions defined as:
...
- 353
3
votes
1
answer
1k
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Strings and arrays in Project Valhalla
My understanding of Project Valhalla's impact on arrays and Strings (please let me know if this is off):
arrays will still be reference objects but an array of ...
- 133
3
votes
1
answer
193
views
Alternatives to ANTLR 3 for LL(1) Grammar verification
I'm developing an expression language using a LL(1) recursive descent parser. Technically it's actually LL(2) since I need an extra lookahead in one place. I'm using ANTLR 3 (ANTLRWorks) to verify ...
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26
votes
3
answers
7k
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Why do many programming languages use the symbol of two vertical parallel lines `||` to mean "or"?
Why do many programming languages use the symbol of two vertical parallel lines || to mean "or"? Is it because two switches connected in parallel form a ...
- 1,945
0
votes
3
answers
209
views
Distinguish identifier reference and definition
I have the following prototype grammar that I intend to use to test a home-made LR(1) parser.
During the process of writing it, I realize that there's a potential ambiguity with regard to the function ...
- 353
-1
votes
2
answers
414
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If in computer science, compare-and-swap is known as "compare-and-swap," why are the C/C++ functions named atomic_compare_exchange_*?
In computer science, compare-and-swap is known as, well, "compare-and-swap" and often abbreviated as "CAS."
Why are the functions in the standard C library and C++ library named <...
- 404
3
votes
2
answers
270
views
Alternatives for concept of sub-modules
I imagine that I would like to have some form of sub-module concept in my language. Where the exposed types and functions of the sub-module is accessible for the parent module, but not for other ...
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