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Location: CSY/reowolf/examples/utility.c - annotation
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Add docs for implementing infinite types in a value based language.
Since we are a value based language and do not have the concept of
pointers, then if we want to lay out the memory of datatypes we run
into a problem when the types represent recursive datastructures:
these are infinite in size. So we have an algorithm for turning
some types into pointer-like things, such that we can lay everything
out in memory.
Since we are a value based language and do not have the concept of
pointers, then if we want to lay out the memory of datatypes we run
into a problem when the types represent recursive datastructures:
these are infinite in size. So we have an algorithm for turning
some types into pointer-like things, such that we can lay everything
out in memory.
33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 7b9df91324ad 7b9df91324ad a3c92705eeee a3c92705eeee a3c92705eeee a3c92705eeee 8df425c3752e a3c92705eeee a3c92705eeee a3c92705eeee a3c92705eeee a3c92705eeee a3c92705eeee a3c92705eeee a3c92705eeee a3c92705eeee 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 1f2d007ac1cc 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 33da6b69e9a2 a3c92705eeee | #include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "../reowolf.h"
size_t get_user_msg(char * buf, size_t cap) {
memset(buf, 0, cap);
printf("Insert a msg of max len %zu: ", cap);
fgets(buf, cap, stdin);
for(size_t len = 0; len<cap; len++)
if(buf[len]==0 || buf[len]=='\n')
return len;
return cap;
}
void rw_err_peek(Connector * c) {
printf("Error str `%s`\n", reowolf_error_peek(NULL));
}
// allocates a buffer!
char * buffer_pdl(char * filename) {
FILE *f = fopen(filename, "rb");
if (f == NULL) {
printf("Opening pdl file returned errno %d!\n", errno);
exit(1);
}
fseek(f, 0, SEEK_END);
long fsize = ftell(f);
fseek(f, 0, SEEK_SET);
char *pdl = malloc(fsize + 1);
fread(pdl, 1, fsize, f);
fclose(f);
pdl[fsize] = 0;
return pdl;
}
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