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 30802-b11b770002) Lines: 1144 1487 76.9 %
Date: 2026-04-11 09:26:21 Functions: 133 162 82.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
chk_gc_upto 0
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
gclone_refc 0
gerepile 0
getwalltime 0
listinit 0
msgtimer 0
name_numerr 0
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_sigint 0
pari_thread_valloc 0
paristack_resize 0
paristack_setsize 0
parivstack_resize 0
timer 0
timer2 0
timer_printf 0
timer_vprintf 0
timetoi 0
walltimer_get 0
pari_sighandler 4
exportall 6
unexportall 6
getstack 7
pari_version 7
icopy_avma_canon 12
new_chunk_resize 18
copy_bin_canon 24
export_del 24
obj_reinit 42
export_add 59
pari_daemon 76
shiftaddress_canon 76
gcopy_av0_canon 84
getheap 84
taille0_canon 84
traverseheap 84
setdebug 127
gsizebyte 175
pari_mainstack_resize 445
paristack_newrsize 452
obj_checkbuild_padicprec 539
cgetlist_avma 620
listcopy 730
gcopy_lg 742
pari_warn 942
export_get 1500
pari_add_module 1880
pari_close 1880
pari_close_export 1880
pari_close_opts 1880
getabstime 1890
init_universal_constants 1890
pari_add_defaults_module 1890
pari_init_defaults 1890
pari_init_export 1890
pari_init_functions 1890
pari_init_opts 1890
pari_init_timer 1890
paristack_alloc 1890
timer_get 1896
setalldebug 1918
gdisplay 3703
gettime 3710
pari_sig_init 3770
f_getheap 6734
list_internal_copy 7026
listassign 7026
type_dim 7308
err_recover 13069
pari_err_display 13090
gp_context_restore 13144
traverseheap_r 13552
err_init_msg 13897
err_init 14032
os_signal 20730
pari_err2str 21873
errname 27109
numerr_name 27109
gcloneref 37888
pari_err2GEN 56829
pari_err 56841
pari_err_last 87496
walltimer_delay 108106
timer_delay 111816
parivstack_reset 121618
gp_context_save 146100
obj_insert_shallow 173572
obj_free 187740
rndus 221818
timer_aux 221818
walltimer_start 253537
timer_start 358318
pari_close_blocks 366330
pari_thread_set_global 372781
setdebugvar 372783
pari_thread_start 372807
getdebugvar 372814
pari_thread_alloc 372814
pari_thread_free 372814
pari_thread_get_global 372814
pari_thread_close 373204
pari_init_blocks 374699
pari_mainstack_use 374699
pari_thread_init 374699
pari_mainstack_free 375139
pari_mainstack_mfree 375139
pari_mainstack_alloc 375149
pari_mainstack_malloc 375149
pari_init_errcatch 375150
pari_stackcheck_init 376587
pop_entree_block 390025
obj_checkbuild_realprec 399100
pari_mainstack_mextend 496767
pari_mainstack_mreset 496767
pari_mainstack_setsize 496767
obj_checkbuild_prec 568477
fix_size 750288
obj_checkbuild 1507426
gsizeword 2214450
obj_init 2533407
obj_insert 2661642
obj_check 6033702
gc_all_unsafe 27377283
clone_unlock_deep 59318160
bl_rotright 60836559
bl_rotleft 66418771
vec_gunclone_deep 134758194
is_in_block 234036416
gsizeclone 237484603
gclone 237485032
newblock 238334705
clone_unlock 311721245
gc_slice_unsafe 330538824
clone_lock 371004984
gunclone 388589079
copy_bin 472975484
clonesearch 741717444
cgetg_copy_avma 1062129806
gc_stack_update 1236477467
blockdelete 1575904716
blockinsert 1728931255
blockbalance 2850384278
fix_height 3082514950
shiftaddress 3099622445
gunclone_deep 3279421755
gcopy_avma 3381558204
gsizeclone_i 3475509596
gcopy_av0 4037022524
taille0 4037341276
gcopy 4887613685
gc_dec 6014070670
blockheight 11865706714

Generated by: LCOV version 1.16