upscheme/c/util.c

86 lines
1.8 KiB
C

#include <sys/types.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "scheme.h"
void *reallocarray(void *ptr, size_t nmemb, size_t size)
{
return realloc(ptr, nmemb * size);
}
//
void accum_init(struct accum *accum) { accum->list = accum->tail = FL_NIL; }
void accum_elt(struct accum *accum, value_t elt)
{
value_t newtail;
newtail = fl_cons(elt, FL_NIL);
if (accum->tail != FL_NIL) {
cdr_(accum->tail) = newtail;
} else {
accum->list = newtail;
}
accum->tail = newtail;
}
void accum_pair(struct accum *accum, value_t a, value_t d)
{
accum_elt(accum, fl_cons(a, d));
}
void accum_name_value(struct accum *accum, const char *name, value_t value)
{
accum_pair(accum, symbol(name), value);
}
void accum_name_value1(struct accum *accum, const char *name, value_t value)
{
accum_pair(accum, symbol(name), fl_cons(value, FL_NIL));
}
//
void sv_accum_init(struct sv_accum *accum)
{
accum->fill = 0;
accum->cap = 8;
accum->vec = calloc(accum->cap, sizeof(char *));
if (!accum->vec) {
lerror(MemoryError, "out of memory");
}
}
void sv_accum_strdup(struct sv_accum *accum, const char *str)
{
char *dup;
if (__unlikely(accum->cap <= accum->fill + 1)) {
while (accum->cap <= accum->fill + 1) {
accum->cap *= 2;
}
accum->vec = reallocarray(accum->vec, accum->cap, sizeof(char *));
if (!accum->vec) {
lerror(MemoryError, "out of memory");
}
}
dup = strdup(str);
if (!dup) {
lerror(MemoryError, "out of memory");
}
accum->vec[accum->fill++] = dup;
accum->vec[accum->fill] = 0;
}