builtins-va_arg.cpp
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// 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;
}