I've been using original CWEB to try literate programming for the first time. Ever

This particular example can be fixed with <div class="snippet-clipboard-content no

Here's a larger example with a few more tweaks: <div class="snippet-clipboard-cont

Wrong formatting with C99 compound literal about cweb HOT 3 CLOSED

ascherer commented on July 19, 2024

Wrong formatting with C99 compound literal

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Comments (3)

ascherer commented on July 19, 2024 1

This particular example can be fixed with

return @[(struct T){.a = 1}@]; // C99 compound literal

which works with CWEB 3.6 (May 2005) and up.

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ascherer commented on July 19, 2024 1

Here's a larger example with a few more tweaks:

@* C/99 Compound Literals.

@c
@<\#|include|s@>@;
@<Structure@>@;
@<Declaration@>@;
@<Definition@>@;
@<Output@>@;
@<Main@>@;

@ @<\#|inc...@>=
#include <stdio.h> /* |printf| */
#include <string.h> /* |memcpy| */

@ @<Struct...@>=
struct T
{
	int a;
	char* b;
} t2;

@ @<Decl...@>=
void g(const struct T* t);

@ @d bufsiz 10

@<Def...@>=
void f(void)
{
@t\2\2@>
	int *x = @[(int [bufsiz])@t @>{42}@];

	t2 = @[(struct T) {43, "world"}@];
	g( @[&(struct T)@t @>{@, .b="hello", .a=47 @,}@] );
	g( @[&(struct T) {43, "bye"}@] );
@t\2\2@>
	memcpy(x, @[(int[])@t @>{1, 2, 3}@], 3*sizeof(int));
	for (int i=0; i<bufsiz; ++i)
		printf("x[%d]==%d\n", i, x[i]);
}

@ @<Out...@>=
void g(const struct T* t)
{
	printf("struct T { a=%d, b=%s }\n", t->a, t->b);
}

@ @<Main@>=
int main(void)
{
	f();
}

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