Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30586-ccf601f509) Lines: 1138 1487 76.5 %
Date: 2025-12-25 09:21:36 Functions: 134 162 82.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66247973
bl_rotright 60580668
blockbalance 2854365044
blockdelete 1577852375
blockheight 11880498276
blockinsert 1730554737
cgetg_copy_avma 1052600482
cgetlist_avma 620
chk_gc_upto 0
clone_lock 386551054
clone_unlock 327257844
clone_unlock_deep 59317446
clonesearch 772796706
copy_bin 495857421
copy_bin_canon 16
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 13830
err_init_msg 13690
err_recover 13035
errname 27109
export_add 59
export_del 24
export_get 1500
exportall 6
f_getheap 6664
fix_height 3085942891
fix_size 711734
gc_all_unsafe 27368323
gc_dec 6025760497
gc_slice_unsafe 327209840
gc_stack_update 1235910057
gclone 237169966
gclone_refc 0
gcloneref 37887
gcopy 4792878396
gcopy_av0 4024700535
gcopy_av0_canon 32
gcopy_avma 3343029955
gcopy_lg 742
gdisplay 3689
gerepile 0
getabstime 1912
getdebugvar 353527
getheap 84
getstack 7
gettime 3718
getwalltime 8
gp_context_restore 13110
gp_context_save 144845
gsizebyte 175
gsizeclone 237169511
gsizeclone_i 3435676124
gsizeword 2214450
gunclone 388193872
gunclone_deep 3278619832
icopy_avma_canon 12
init_universal_constants 1900
is_in_block 233812259
list_internal_copy 7019
listassign 7019
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 14
newblock 237979730
numerr_name 27109
obj_check 6033178
obj_checkbuild 1506909
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187243
obj_init 2532729
obj_insert 2661125
obj_insert_shallow 173516
obj_reinit 42
os_signal 20840
pari_add_defaults_module 1900
pari_add_module 1890
pari_close 1890
pari_close_blocks 346266
pari_close_export 1890
pari_close_opts 1890
pari_daemon 76
pari_err 56800
pari_err2GEN 56788
pari_err2str 21834
pari_err_display 13056
pari_err_last 87482
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 355408
pari_init_defaults 1900
pari_init_errcatch 355850
pari_init_export 1900
pari_init_functions 1900
pari_init_opts 1900
pari_init_timer 1900
pari_mainstack_alloc 355872
pari_mainstack_free 355862
pari_mainstack_malloc 355872
pari_mainstack_mextend 476387
pari_mainstack_mfree 355862
pari_mainstack_mreset 476387
pari_mainstack_resize 445
pari_mainstack_setsize 476387
pari_mainstack_use 355414
pari_sig_init 3790
pari_sighandler 0
pari_sigint 0
pari_stackcheck_init 357298
pari_thread_alloc 353527
pari_thread_close 353595
pari_thread_free 353527
pari_thread_get_global 353527
pari_thread_init 355405
pari_thread_set_global 353455
pari_thread_start 353514
pari_thread_valloc 0
pari_version 7
pari_warn 774
paristack_alloc 1900
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 120515
parivstack_resize 0
pop_entree_block 389571
rndus 219718
setalldebug 1928
setdebug 127
setdebugvar 353458
shiftaddress 3119123774
shiftaddress_canon 24
taille0 4024864176
taille0_canon 32
timer 0
timer2 0
timer_aux 219710
timer_delay 110755
timer_get 1918
timer_printf 0
timer_start 355980
timer_vprintf 0
timetoi 8
traverseheap 84
traverseheap_r 13412
type_dim 7308
unexportall 6
vec_gunclone_deep 134397700
walltimer_delay 107037
walltimer_get 0
walltimer_start 251221

Generated by: LCOV version 1.16