Using fast_float for string parsing

3MFConsortium · Nov 3, 2023 · f33ac2a · f33ac2a
1 parent 00a2050
commit f33ac2a
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Showing 6 changed files with 19 additions and 16 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -144,6 +144,9 @@ else()
 endif()
 
 
+target_include_directories(${PROJECT_NAME} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/submodules/fast_float/include)
+
+
 set_target_properties(${PROJECT_NAME} PROPERTIES PREFIX "" IMPORT_PREFIX "" )
 # This makes sure symbols are exported
 target_compile_options(${PROJECT_NAME} PRIVATE "-D__LIB3MF_EXPORTS")

diff --git a/Include/Common/NMR_StringUtils.h b/Include/Common/NMR_StringUtils.h
@@ -36,6 +36,9 @@ and Exception-safe
 
 #include "Common/NMR_Types.h"
 #include "Common/NMR_Local.h"
+
+#include <fast_float/fast_float.h>
+
 #include <string>
 #include <string.h>
 #include <vector>

diff --git a/Source/Common/NMR_StringUtils.cpp b/Source/Common/NMR_StringUtils.cpp
@@ -154,17 +154,14 @@ namespace NMR {
 		nfDouble dResult = 0.0;
 
 		// Convert to double and make a input and range check!
-		nfChar * pEndPtr;
-
-		dResult = strtod(pszValue, &pEndPtr);
+		auto answer = fast_float::from_chars(pszValue, pszValue + strlen(pszValue), dResult);
 
 		// Check if any conversion happened
-		if ((pEndPtr == pszValue) || (!pEndPtr))
+		if (answer.ec != std::errc())
+		{
 			throw CNMRException(NMR_ERROR_EMPTYSTRINGTODOUBLECONVERSION);
-
-		if ((*pEndPtr != '\0') && (*pEndPtr != ' '))
-			throw CNMRException(NMR_ERROR_INVALIDSTRINGTODOUBLECONVERSION);
-
+		}
+
 		if ((dResult == HUGE_VAL) || (dResult == -HUGE_VAL))
 			throw CNMRException(NMR_ERROR_STRINGTODOUBLECONVERSIONOUTOFRANGE);
 

diff --git a/Source/Model/Reader/v093/NMR_ModelReaderNode093_TextureVertex.cpp b/Source/Model/Reader/v093/NMR_ModelReaderNode093_TextureVertex.cpp
@@ -86,7 +86,7 @@ namespace NMR {
 		__NMRASSERT(pAttributeValue);
 
 		if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_TEXTURE_U) == 0) {
-			m_fU = strtof(pAttributeValue, nullptr);
+			m_fU = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fU))
 				throw CNMRException(NMR_ERROR_INVALIDMODELTEXTURECOORDINATES);
 			if (fabs (m_fU) > XML_3MF_MAXIMUMCOORDINATEVALUE)
@@ -95,7 +95,7 @@ namespace NMR {
 		}
 
 		if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_TEXTURE_V) == 0) {
-			m_fV = strtof(pAttributeValue, nullptr);
+			m_fV = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fV))
 				throw CNMRException(NMR_ERROR_INVALIDMODELTEXTURECOORDINATES);
 			if (fabs(m_fV) > XML_3MF_MAXIMUMCOORDINATEVALUE)

diff --git a/Source/Model/Reader/v093/NMR_ModelReaderNode093_Vertex.cpp b/Source/Model/Reader/v093/NMR_ModelReaderNode093_Vertex.cpp
@@ -82,7 +82,7 @@ namespace NMR {
 		__NMRASSERT(pAttributeValue);
 
 		if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_VERTEX_X) == 0) {
-			m_fX = strtof(pAttributeValue, nullptr);
+			m_fX = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fX))
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			if (fabs (m_fX) > XML_3MF_MAXIMUMCOORDINATEVALUE)
@@ -91,7 +91,7 @@ namespace NMR {
 		}
 
 		if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_VERTEX_Y) == 0) {
-			m_fY = strtof(pAttributeValue, nullptr);
+			m_fY = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fY))
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			if (fabs(m_fY) > XML_3MF_MAXIMUMCOORDINATEVALUE)
@@ -100,7 +100,7 @@ namespace NMR {
 		}
 
 		if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_VERTEX_Z) == 0) {
-			m_fZ = strtof(pAttributeValue, nullptr);
+			m_fZ = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fZ))
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			if (fabs(m_fZ) > XML_3MF_MAXIMUMCOORDINATEVALUE)

diff --git a/Source/Model/Reader/v100/NMR_ModelReaderNode100_Vertex.cpp b/Source/Model/Reader/v100/NMR_ModelReaderNode100_Vertex.cpp
@@ -82,23 +82,23 @@ namespace NMR {
 		__NMRASSERT(pAttributeValue);
 
 		if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_VERTEX_X) == 0) {
-			m_fX = strtof(pAttributeValue, nullptr);
+			m_fX = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fX))
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			if (fabs (m_fX) > XML_3MF_MAXIMUMCOORDINATEVALUE)
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			m_bHasX = true;
 		}
 		else if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_VERTEX_Y) == 0) {
-			m_fY = strtof(pAttributeValue, nullptr);
+			m_fY = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fY))
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			if (fabs(m_fY) > XML_3MF_MAXIMUMCOORDINATEVALUE)
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			m_bHasY = true;
 		}
 		else if (strcmp(pAttributeName, XML_3MF_ATTRIBUTE_VERTEX_Z) == 0) {
-			m_fZ = strtof(pAttributeValue, nullptr);
+			m_fZ = fnStringToFloat(pAttributeValue);
 			if (std::isnan (m_fZ))
 				throw CNMRException(NMR_ERROR_INVALIDMODELCOORDINATES);
 			if (fabs(m_fZ) > XML_3MF_MAXIMUMCOORDINATEVALUE)