added incrementing the data pointer

Author: Sriya Pratipati

libc/fuzzing/math/log10_fuzz.cpp

@@ -23,6 +23,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   for (size_t i = 0; i < size / sizeof(double); ++i) {
     double x;
     std::memcpy(&x, data, sizeof(double));
+    data += sizeof(double);
+
     // remove NaN and inf and values outside accepted range
     if (isnan(x) || isinf(x) || x < 0)
       return 0;

libc/fuzzing/math/log1p_fuzz.cpp

@@ -23,6 +23,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   for (size_t i = 0; i < size / sizeof(double); ++i) {
     double x;
     std::memcpy(&x, data, sizeof(double));
+    data += sizeof(double);
     // remove NaN and inf and values outside accepted range
     if (isnan(x) || isinf(x) || x < -1)
       return 0;

libc/fuzzing/math/log2_fuzz.cpp

@@ -23,6 +23,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   for (size_t i = 0; i < size / sizeof(double); ++i) {
     double x;
     std::memcpy(&x, data, sizeof(double));
+    data += sizeof(double);
+
     // remove NaN and inf and values outside accepted range
     if (isnan(x) || isinf(x) || x < 0)
       return 0;

libc/fuzzing/math/log_fuzz.cpp

@@ -23,6 +23,8 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   for (size_t i = 0; i < size / sizeof(double); ++i) {
     double x;
     std::memcpy(&x, data, sizeof(double));
+    data += sizeof(double);
+
     // remove NaN and inf and values outside accepted range
     if (isnan(x) || isinf(x) || x < 0)
       return 0;

libc/fuzzing/math/sqrt_fuzz.cpp

@@ -23,6 +23,7 @@ extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
   for (size_t i = 0; i < size / sizeof(double); ++i) {
     double x;
     std::memcpy(&x, data, sizeof(double));
+    data += sizeof(double);
     // remove NaN and inf and values outside accepted range
     if (isnan(x) || isinf(x) || x < 0)
       return 0;