fix typo

2 files changed, 53 insertions, 1 deletions

diff --git a/sample/pairing_if.c b/sample/pairing_if.c
new file mode 100644
index 0000000..3e34e9c
--- /dev/null
+++ b/sample/pairing_if.c
@@ -0,0 +1,52 @@
+#define BN256_DEFINE_STRUCT
+#include <mcl/bn256_if.h>
+#include <stdio.h>
+
+int g_err = 0;
+#define ASSERT(x) { if (!(x)) { printf("err %s:%d\n", __FILE__, __LINE__); g_err++; } }
+
+int main()
+{
+	char buf[1024];
+	const char *aStr = "1234567788234243234234";
+	const char *bStr = "239482098243";
+	BN256_init();
+	BN256_Fr a, b, ab;
+	BN256_G1 P, aP;
+	BN256_G2 Q, bQ;
+	BN256_GT e, e1, e2;
+	BN256_Fr_setStr(&a, aStr);
+	BN256_Fr_setStr(&b, bStr);
+	BN256_Fr_mul(&ab, &a, &b);
+	BN256_Fr_getStr(buf, sizeof(buf), &ab);
+	printf("%s x %s = %s\n", aStr, bStr, buf);
+
+	ASSERT(!BN256_G1_setStr(&P, "1 -1 1")); // "1 <x> <y>"
+	ASSERT(!BN256_G2_hashAndMapTo(&Q, "1"));
+	BN256_G1_getStr(buf, sizeof(buf), &P);
+	printf("P = %s\n", buf);
+	BN256_G2_getStr(buf, sizeof(buf), &Q);
+	printf("Q = %s\n", buf);
+
+	BN256_G1_mul(&aP, &P, &a);
+	BN256_G2_mul(&bQ, &Q, &b);
+
+	BN256_pairing(&e, &P, &Q);
+	BN256_GT_getStr(buf, sizeof(buf), &e);
+	printf("e = %s\n", buf);
+	BN256_GT_pow(&e1, &e, &a);
+	BN256_pairing(&e2, &aP, &Q);
+	ASSERT(BN256_GT_isSame(&e1, &e2));
+
+	BN256_GT_pow(&e1, &e, &b);
+	BN256_pairing(&e2, &P, &bQ);
+	ASSERT(BN256_GT_isSame(&e1, &e2));
+	ASSERT(BN256_setErrFile("") == 0);
+	if (g_err) {
+		printf("err %d\n", g_err);
+		return 1;
+	} else {
+		printf("no err\n");
+		return 0;
+	}
+}
diff --git a/src/bn256_if.cpp b/src/bn256_if.cpp
index 2ef6784..aa6114a 100644
--- a/src/bn256_if.cpp
+++ b/src/bn256_if.cpp
@@ -43,7 +43,7 @@ int BN256_setErrFile(const char *name)
 		return ret;
 	}
 	if (ret) return ret;
-	if (strcmp(name, "strerr") == 0) {
+	if (strcmp(name, "stderr") == 0) {
 		g_fp = stderr;
 		return 0;
 	}