Commit c1901f7e authored by Yang Tse's avatar Yang Tse
Browse files

fix compiler warning: conversion may lose significant bits

parent 9c4ff487
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+6 −8
Original line number Diff line number Diff line
@@ -1366,18 +1366,16 @@ static CURLcode ftp_state_ul_setup(struct connectdata *conn,
      else {
        curl_off_t passed=0;
        do {
          curl_off_t readthisamountnow = (data->state.resume_from - passed);
          curl_off_t actuallyread;
          size_t readthisamountnow =
            (data->state.resume_from - passed > CURL_OFF_T_C(BUFSIZE)) ?
            BUFSIZE : curlx_sotouz(data->state.resume_from - passed);

          if(readthisamountnow > BUFSIZE)
            readthisamountnow = BUFSIZE;

          actuallyread = (curl_off_t)
            conn->fread_func(data->state.buffer, 1, (size_t)readthisamountnow,
          size_t actuallyread =
            conn->fread_func(data->state.buffer, 1, readthisamountnow,
                             conn->fread_in);

          passed += actuallyread;
          if((actuallyread <= 0) || (actuallyread > readthisamountnow)) {
          if((actuallyread == 0) || (actuallyread > readthisamountnow)) {
            /* this checks for greater-than only to make sure that the
               CURL_READFUNC_ABORT return code still aborts */
            failf(data, "Failed to read data");
+11 −12
Original line number Diff line number Diff line
@@ -98,6 +98,7 @@
#include "rawstr.h"
#include "content_encoding.h"
#include "rtsp.h"
#include "warnless.h"

#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
@@ -2424,27 +2425,25 @@ CURLcode Curl_http(struct connectdata *conn, bool *done)
        /* when seekerr == CURL_SEEKFUNC_CANTSEEK (can't seek to offset) */
        else {
          curl_off_t passed=0;

          do {
            size_t readthisamountnow = (size_t)(data->state.resume_from -
                                                passed);
            size_t actuallyread;

            if(readthisamountnow > BUFSIZE)
              readthisamountnow = BUFSIZE;
            size_t readthisamountnow =
              (data->state.resume_from - passed > CURL_OFF_T_C(BUFSIZE)) ?
              BUFSIZE : curlx_sotouz(data->state.resume_from - passed);

            actuallyread = data->set.fread_func(data->state.buffer, 1,
                                                (size_t)readthisamountnow,
            size_t actuallyread =
              data->set.fread_func(data->state.buffer, 1, readthisamountnow,
                                   data->set.in);

            passed += actuallyread;
            if(actuallyread != readthisamountnow) {
            if((actuallyread == 0) || (actuallyread > readthisamountnow)) {
              /* this checks for greater-than only to make sure that the
                 CURL_READFUNC_ABORT return code still aborts */
              failf(data, "Could only read %" FORMAT_OFF_T
                    " bytes from the input",
                    passed);
              return CURLE_READ_ERROR;
            }
          } while(passed != data->state.resume_from); /* loop until done */
          } while(passed < data->state.resume_from);
        }
      }

+8 −11
Original line number Diff line number Diff line
@@ -101,6 +101,7 @@
#include "strtoofft.h"
#include "multiif.h"
#include "select.h"
#include "warnless.h"

#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
@@ -1541,21 +1542,17 @@ static CURLcode ssh_statemach_act(struct connectdata *conn, bool *block)
          /* seekerr == CURL_SEEKFUNC_CANTSEEK (can't seek to offset) */
          else {
            curl_off_t passed=0;
            curl_off_t readthisamountnow;
            curl_off_t actuallyread;
            do {
              readthisamountnow = (data->state.resume_from - passed);
              size_t readthisamountnow =
                (data->state.resume_from - passed > CURL_OFF_T_C(BUFSIZE)) ?
                BUFSIZE : curlx_sotouz(data->state.resume_from - passed);

              if(readthisamountnow > BUFSIZE)
                readthisamountnow = BUFSIZE;

              actuallyread =
                (curl_off_t) conn->fread_func(data->state.buffer, 1,
                                              (size_t)readthisamountnow,
              size_t actuallyread =
                conn->fread_func(data->state.buffer, 1, readthisamountnow,
                                 conn->fread_in);

              passed += actuallyread;
              if((actuallyread <= 0) || (actuallyread > readthisamountnow)) {
              if((actuallyread == 0) || (actuallyread > readthisamountnow)) {
                /* this checks for greater-than only to make sure that the
                   CURL_READFUNC_ABORT return code still aborts */
                failf(data, "Failed to read data");
+23 −1
Original line number Diff line number Diff line
@@ -141,7 +141,7 @@ unsigned char curlx_ultouc(unsigned long ulnum)
}

/*
** size_t to signed int
** unsigned size_t to signed int
*/

int curlx_uztosi(size_t uznum)
@@ -169,6 +169,7 @@ int curlx_sltosi(long slnum)
#  pragma warning(disable:810) /* conversion may lose significant bits */
#endif

  DEBUGASSERT(slnum >= 0);
  return (int)(slnum & (long) CURL_MASK_SINT);

#ifdef __INTEL_COMPILER
@@ -187,6 +188,7 @@ unsigned int curlx_sltoui(long slnum)
#  pragma warning(disable:810) /* conversion may lose significant bits */
#endif

  DEBUGASSERT(slnum >= 0);
  return (unsigned int)(slnum & (long) CURL_MASK_UINT);

#ifdef __INTEL_COMPILER
@@ -205,6 +207,7 @@ unsigned short curlx_sltous(long slnum)
#  pragma warning(disable:810) /* conversion may lose significant bits */
#endif

  DEBUGASSERT(slnum >= 0);
  return (unsigned short)(slnum & (long) CURL_MASK_USHORT);

#ifdef __INTEL_COMPILER
@@ -229,3 +232,22 @@ ssize_t curlx_uztosz(size_t uznum)
#  pragma warning(pop)
#endif
}

/*
** signed curl_off_t to unsigned size_t
*/

size_t curlx_sotouz(curl_off_t sonum)
{
#ifdef __INTEL_COMPILER
#  pragma warning(push)
#  pragma warning(disable:810) /* conversion may lose significant bits */
#endif

  DEBUGASSERT(sonum >= 0);
  return (size_t)(sonum & (curl_off_t) CURL_MASK_USIZE_T);

#ifdef __INTEL_COMPILER
#  pragma warning(pop)
#endif
}
+2 −0
Original line number Diff line number Diff line
@@ -36,4 +36,6 @@ unsigned short curlx_sltous(long slnum);

ssize_t curlx_uztosz(size_t uznum);

size_t curlx_sotouz(curl_off_t sonum);

#endif /* HEADER_CURL_WARNLESS_H */