mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-15 23:25:41 +00:00
108 lines
3.0 KiB
C
Vendored
108 lines
3.0 KiB
C
Vendored
/*
|
|
* Copyright 2016 The Emscripten Authors. All rights reserved.
|
|
* Emscripten is available under two separate licenses, the MIT license and the
|
|
* University of Illinois/NCSA Open Source License. Both these licenses can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
|
|
void vary(const char *s, ...) {
|
|
va_list v;
|
|
va_start(v, s);
|
|
char d[20];
|
|
vsnprintf(d, 20, s, v);
|
|
puts(d);
|
|
|
|
// Try it with copying
|
|
va_list tempva;
|
|
va_copy(tempva, v);
|
|
vsnprintf(d, 20, s, tempva);
|
|
puts(d);
|
|
|
|
va_end(v);
|
|
}
|
|
|
|
void vary2(char color, const char *s, ...) {
|
|
va_list v;
|
|
va_start(v, s);
|
|
char d[21];
|
|
d[0] = color;
|
|
vsnprintf(d + 1, 20, s, v);
|
|
puts(d);
|
|
va_end(v);
|
|
}
|
|
|
|
void varargs_listoffsets_list_evaluate(int count, va_list ap, int vaIteration) {
|
|
while (count > 0) {
|
|
const char *string = va_arg(ap, const char *);
|
|
printf("%s", string);
|
|
count--;
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
void varags_listoffsets_list_copy(int count, va_list ap, int iteration) {
|
|
va_list ap_copy;
|
|
va_copy(ap_copy, ap);
|
|
varargs_listoffsets_list_evaluate(count, ap_copy, iteration);
|
|
va_end(ap_copy);
|
|
}
|
|
|
|
void varargs_listoffsets_args(int type, int count, ...) {
|
|
va_list ap;
|
|
va_start(ap, count);
|
|
|
|
// evaluate a copied list
|
|
varags_listoffsets_list_copy(count, ap, 1);
|
|
varags_listoffsets_list_copy(count, ap, 2);
|
|
varags_listoffsets_list_copy(count, ap, 3);
|
|
varags_listoffsets_list_copy(count, ap, 4);
|
|
}
|
|
|
|
void varargs_listoffsets_main() {
|
|
varargs_listoffsets_args(0, 5, "abc", "def", "ghi", "jkl", "mno", "<BAD+0>",
|
|
"<BAD+1>", "<BAD+2>", "<BAD+3>", "<BAD+4>",
|
|
"<BAD+5>", "<BAD+6>", "<BAD+7>", "<BAD+8>",
|
|
"<BAD+9>", "<BAD+10>", "<BAD+11>", "<BAD+12>",
|
|
"<BAD+13>", "<BAD+14>", "<BAD+15>", "<BAD+16>");
|
|
}
|
|
|
|
#define GETMAX(pref, type) \
|
|
type getMax##pref(int num, ...) { \
|
|
va_list vv; \
|
|
va_start(vv, num); \
|
|
type maxx = va_arg(vv, type); \
|
|
for (int i = 1; i < num; i++) { \
|
|
type curr = va_arg(vv, type); \
|
|
maxx = curr > maxx ? curr : maxx; \
|
|
} \
|
|
va_end(vv); \
|
|
return maxx; \
|
|
}
|
|
GETMAX(i, int);
|
|
GETMAX(D, double);
|
|
|
|
int main(int argc, char **argv) {
|
|
vary("*cheez: %d+%d*", 0,
|
|
24); // Also tests that '0' is not special as an array ender
|
|
vary("*albeit*"); // Should not fail with no var args in vararg function
|
|
vary2('Q', "%d*", 85);
|
|
|
|
int maxxi = getMaxi(6, 2, 5, 21, 4, -10, 19);
|
|
printf("maxxi:%d*\n", maxxi);
|
|
double maxxD = getMaxD(6, (double)2.1, (double)5.1, (double)22.1, (double)4.1,
|
|
(double)-10.1, (double)19.1, (double)2);
|
|
printf("maxxD:%.2f*\n", (float)maxxD);
|
|
|
|
// And, as a function pointer
|
|
void (*vfp)(const char * s, ...) = argc == 1211 ? NULL : vary;
|
|
vfp("*vfp:%d,%d*", 22, 199);
|
|
|
|
// ensure lists work properly when copied, reinited etc.
|
|
varargs_listoffsets_main();
|
|
|
|
return 0;
|
|
}
|