Initial project import

tools/v/vlib/math/log.c.v

@@ -0,0 +1,45 @@
+module math
+
+fn C.log(x f64) f64
+fn C.log2(x f64) f64
+fn C.log10(x f64) f64
+fn C.log1p(x f64) f64
+fn C.logb(x f64) f64
+fn C.logf(x f32) f32
+
+// log returns the natural logarithm of x (float64)
+@[inline]
+pub fn log(x f64) f64 {
+	return C.log(x)
+}
+
+// log2 returns the binary logarithm of x (float64).
+// The special cases are the same as for log.
+@[inline]
+pub fn log2(x f64) f64 {
+	return C.log2(x)
+}
+
+// log10 returns the decimal logarithm of x (float64).
+// The special cases are the same as for log.
+@[inline]
+pub fn log10(x f64) f64 {
+	return C.log10(x)
+}
+
+// log1p returns log(1+x).
+@[inline]
+pub fn log1p(x f64) f64 {
+	return C.log1p(x)
+}
+
+// log_b returns the binary exponent of x.
+pub fn log_b(x f64) f64 {
+	return C.logb(x)
+}
+
+// log returns the natural logarithm of x (float32)
+@[inline]
+pub fn logf(x f32) f32 {
+	return C.logf(x)
+}