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-rw-r--r--test/monniaux/ocaml/byterun/caml/int64_format.h111
1 files changed, 111 insertions, 0 deletions
diff --git a/test/monniaux/ocaml/byterun/caml/int64_format.h b/test/monniaux/ocaml/byterun/caml/int64_format.h
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index 00000000..40250ed9
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@@ -0,0 +1,111 @@
+/**************************************************************************/
+/* */
+/* OCaml */
+/* */
+/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */
+/* */
+/* Copyright 2002 Institut National de Recherche en Informatique et */
+/* en Automatique. */
+/* */
+/* All rights reserved. This file is distributed under the terms of */
+/* the GNU Lesser General Public License version 2.1, with the */
+/* special exception on linking described in the file LICENSE. */
+/* */
+/**************************************************************************/
+
+/* printf-like formatting of 64-bit integers, in case the C library
+ printf() function does not support them. */
+
+#ifndef CAML_INT64_FORMAT_H
+#define CAML_INT64_FORMAT_H
+
+#ifdef CAML_INTERNALS
+
+static void I64_format(char * buffer, char * fmt, int64_t x)
+{
+ static char conv_lower[] = "0123456789abcdef";
+ static char conv_upper[] = "0123456789ABCDEF";
+ char rawbuffer[24];
+ char justify, signstyle, filler, alternate, signedconv;
+ int base, width, sign, i, rawlen;
+ char * cvtbl;
+ char * p, * r;
+ int64_t wbase, digit;
+
+ /* Parsing of format */
+ justify = '+';
+ signstyle = '-';
+ filler = ' ';
+ alternate = 0;
+ base = 0;
+ signedconv = 0;
+ width = 0;
+ cvtbl = conv_lower;
+ for (p = fmt; *p != 0; p++) {
+ switch (*p) {
+ case '-':
+ justify = '-'; break;
+ case '+': case ' ':
+ signstyle = *p; break;
+ case '0':
+ filler = '0'; break;
+ case '#':
+ alternate = 1; break;
+ case '1': case '2': case '3': case '4': case '5':
+ case '6': case '7': case '8': case '9':
+ width = atoi(p);
+ while (p[1] >= '0' && p[1] <= '9') p++;
+ break;
+ case 'd': case 'i':
+ signedconv = 1; /* fallthrough */
+ case 'u':
+ base = 10; break;
+ case 'x':
+ base = 16; break;
+ case 'X':
+ base = 16; cvtbl = conv_upper; break;
+ case 'o':
+ base = 8; break;
+ }
+ }
+ if (base == 0) { buffer[0] = 0; return; }
+ /* Do the conversion */
+ sign = 1;
+ if (signedconv && I64_is_negative(x)) { sign = -1; x = I64_neg(x); }
+ r = rawbuffer + sizeof(rawbuffer);
+ wbase = I64_of_int32(base);
+ do {
+ I64_udivmod(x, wbase, &x, &digit);
+ *--r = cvtbl[I64_to_int32(digit)];
+ } while (! I64_is_zero(x));
+ rawlen = rawbuffer + sizeof(rawbuffer) - r;
+ /* Adjust rawlen to reflect additional chars (sign, etc) */
+ if (signedconv && (sign < 0 || signstyle != '-')) rawlen++;
+ if (alternate) {
+ if (base == 8) rawlen += 1;
+ if (base == 16) rawlen += 2;
+ }
+ /* Do the formatting */
+ p = buffer;
+ if (justify == '+' && filler == ' ') {
+ for (i = rawlen; i < width; i++) *p++ = ' ';
+ }
+ if (signedconv) {
+ if (sign < 0) *p++ = '-';
+ else if (signstyle != '-') *p++ = signstyle;
+ }
+ if (alternate && base == 8) *p++ = '0';
+ if (alternate && base == 16) { *p++ = '0'; *p++ = 'x'; }
+ if (justify == '+' && filler == '0') {
+ for (i = rawlen; i < width; i++) *p++ = '0';
+ }
+ while (r < rawbuffer + sizeof(rawbuffer)) *p++ = *r++;
+ if (justify == '-') {
+ for (i = rawlen; i < width; i++) *p++ = ' ';
+ }
+ *p = 0;
+}
+
+#endif /* CAML_INTERNALS */
+
+#endif /* CAML_INT64_FORMAT_H */