msvcr120: Add log1p.

configure

@@ -17429,6 +17429,8 @@ for ac_func in \
 	llrintf \
 	llround \
 	llroundf \
+	log1p \
+	log1pf \
 	log2 \
 	log2f \
 	lrint \

configure.ac

@@ -2616,6 +2616,8 @@ AC_CHECK_FUNCS(\
 	llrintf \
 	llround \
 	llroundf \
+	log1p \
+	log1pf \
 	log2 \
 	log2f \
 	lrint \

dlls/api-ms-win-crt-math-l1-1-0/api-ms-win-crt-math-l1-1-0.spec

@@ -270,9 +270,9 @@
 @ cdecl log(double) ucrtbase.log
 @ cdecl log10(double) ucrtbase.log10
 @ cdecl -arch=arm,x86_64 log10f(float) ucrtbase.log10f
-@ stub log1p
-@ stub log1pf
-@ stub log1pl
+@ cdecl log1p(double) ucrtbase.log1p
+@ cdecl log1pf(float) ucrtbase.log1pf
+@ cdecl log1pl(double) ucrtbase.log1pl
 @ cdecl log2(double) ucrtbase.log2
 @ cdecl log2f(float) ucrtbase.log2f
 @ cdecl log2l(double) ucrtbase.log2l

dlls/msvcr120/msvcr120.spec

@@ -2259,9 +2259,9 @@
 @ cdecl -arch=arm,x86_64 logf(float) MSVCRT_logf
 @ cdecl log10(double) MSVCRT_log10
 @ cdecl -arch=arm,x86_64 log10f(float) MSVCRT_log10f
-@ stub log1p
-@ stub log1pf
-@ stub log1pl
+@ cdecl log1p(double) MSVCR120_log1p
+@ cdecl log1pf(float) MSVCR120_log1pf
+@ cdecl log1pl(double) MSVCR120_log1pl
 @ cdecl log2(double) MSVCR120_log2
 @ cdecl log2f(float) MSVCR120_log2f
 @ cdecl log2l(double) MSVCR120_log2l

dlls/msvcr120_app/msvcr120_app.spec

@@ -1922,9 +1922,9 @@
 @ cdecl -arch=arm,x86_64 logf(float) msvcr120.logf
 @ cdecl log10(double) msvcr120.log10
 @ cdecl -arch=arm,x86_64 log10f(float) msvcr120.log10f
-@ stub log1p
-@ stub log1pf
-@ stub log1pl
+@ cdecl log1p(double) msvcr120.log1p
+@ cdecl log1pf(float) msvcr120.log1pf
+@ cdecl log1pl(double) msvcr120.log1pl
 @ cdecl log2(double) msvcr120.log2
 @ cdecl log2f(float) msvcr120.log2f
 @ cdecl log2l(double) msvcr120.log2l

dlls/msvcrt/math.c

@@ -2448,6 +2448,42 @@ LDOUBLE CDECL MSVCR120_expm1l(LDOUBLE x)
 }
 
 /*********************************************************************
+ *      log1p (MSVCR120.@)
+ */
+double CDECL MSVCR120_log1p(double x)
+{
+    if (x < -1) *MSVCRT__errno() = MSVCRT_EDOM;
+    else if (x == -1) *MSVCRT__errno() = MSVCRT_ERANGE;
+#ifdef HAVE_LOG1P
+    return log1p(x);
+#else
+    return log(1 + x);
+#endif
+}
+
+/*********************************************************************
+ *      log1pf (MSVCR120.@)
+ */
+float CDECL MSVCR120_log1pf(float x)
+{
+    if (x < -1) *MSVCRT__errno() = MSVCRT_EDOM;
+    else if (x == -1) *MSVCRT__errno() = MSVCRT_ERANGE;
+#ifdef HAVE_LOG1PF
+    return log1pf(x);
+#else
+    return log(1 + x);
+#endif
+}
+
+/*********************************************************************
+ *      log1pl (MSVCR120.@)
+ */
+LDOUBLE CDECL MSVCR120_log1pl(LDOUBLE x)
+{
+    return MSVCR120_log1p(x);
+}
+
+/*********************************************************************
  *      log2 (MSVCR120.@)
  */
 double CDECL MSVCR120_log2(double x)

dlls/ucrtbase/ucrtbase.spec

@@ -2392,9 +2392,9 @@
 @ cdecl log(double) MSVCRT_log
 @ cdecl log10(double) MSVCRT_log10
 @ cdecl -arch=arm,x86_64 log10f(float) MSVCRT_log10f
-@ stub log1p
-@ stub log1pf
-@ stub log1pl
+@ cdecl log1p(double) MSVCR120_log1p
+@ cdecl log1pf(float) MSVCR120_log1pf
+@ cdecl log1pl(double) MSVCR120_log1pl
 @ cdecl log2(double) MSVCR120_log2
 @ cdecl log2f(float) MSVCR120_log2f
 @ cdecl log2l(double) MSVCR120_log2l

include/config.h.in

@@ -522,6 +522,12 @@
 /* Define to 1 if you have the `llroundf' function. */
 #undef HAVE_LLROUNDF
 
+/* Define to 1 if you have the `log1p' function. */
+#undef HAVE_LOG1P
+
+/* Define to 1 if you have the `log1pf' function. */
+#undef HAVE_LOG1PF
+
 /* Define to 1 if you have the `log2' function. */
 #undef HAVE_LOG2