File: builtins-va_arg.cpp

package info (click to toggle)
llvm-toolchain-19 1%3A19.1.7-3
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 1,998,520 kB
  • sloc: cpp: 6,951,680; ansic: 1,486,157; asm: 913,598; python: 232,024; f90: 80,126; objc: 75,281; lisp: 37,276; pascal: 16,990; sh: 10,009; ml: 5,058; perl: 4,724; awk: 3,523; makefile: 3,167; javascript: 2,504; xml: 892; fortran: 664; cs: 573
file content (52 lines) | stat: -rw-r--r-- 1,143 bytes parent folder | download | duplicates (38) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
 
// RUN: %clang_cc1 %s -ffreestanding
// RUN: %clang_cc1 %s -ffreestanding -triple i686-unknown-linux
// RUN: %clang_cc1 %s -ffreestanding -triple x86_64-unknown-linux
// RUN: %clang_cc1 %s -ffreestanding -triple mips-unknown-linux
// RUN: %clang_cc1 %s -ffreestanding -triple mipsel-unknown-linux
// RUN: %clang_cc1 %s -ffreestanding -triple armv7-unknown-linux-gnueabi
// RUN: %clang_cc1 %s -ffreestanding -triple thumbv7-unknown-linux-gnueabi

#include "stdarg.h"

int int_accumulator = 0;
double double_accumulator = 0;

int test_vprintf(const char *fmt, va_list ap) {
  char ch;
  int result = 0;
  while (*fmt != '\0') {
    ch = *fmt++;
    if (ch != '%') {
      continue;
    }

    ch = *fmt++;
    switch (ch) {
    case 'd':
      int_accumulator += va_arg(ap, int);
      result++;
      break;

    case 'f':
      double_accumulator += va_arg(ap, double);
      result++;
      break;

    default:
      break;
    }

    if (ch == '0') {
      break;
    }
  }
  return result;
}

int test_printf(const char *fmt, ...) {
  va_list ap;
  va_start(ap, fmt);
  int result = test_vprintf(fmt, ap);
  va_end(ap);
  return result;
}