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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30672-116f3d5b0e) Lines: 1880 2002 93.9 % Date: 2026-02-07 09:23:42 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	112
divRq	301
mulqq	1127
addRq	1288
mulRq	2324
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	19096
div_rfrac_scal	32139
div_polmod_same	37016
div_scal_rfrac	37767
sqr_ser_part	113207
mul_gen_rfrac	161432
inv_polmod	189696
fix_rfrac	207739
Q_to_Fp	226838
div_rfrac_pol	262344
mul_ser_scal	321174
div_intmod_same	341850
gconj	390135
add_ser_scal	414436
sqr_polmod	419385
div_ser	774266
sub_intmod_same	1027929
div_rfrac	1187237
divpT	1204917
div_ser_scal	1343391
gdivgunextu	1583803
Qdivis	1592284
divRc	2286221
mul_intmod_same	2629274
mul_polmod	2674945
mulcxmI	2985968
add_rfrac	3018271
gsubsg	3235143
mul_polmod_scal	3238992
add_intmod_same	3344848
ser_add	3592942
addQp	4763042
mulTp	4985025
mulcxpowIs	5564707
pol2ser	5638655
quad_polmod_mul	5860209
div_T_scal	7128542
_serprec	7185086
mul_self_scal	7646053
mul_rfrac	7910299
mul_polmod_same	8529774
add_rfrac_scal	8811940
div_scal_pol	9257079
div_scal_T	9265322
rfrac_denom_mul_scal	9959106
mul_rfrac_scal	10454863
mulcIR	11645776
gdivgs	13001706
divpp	13213158
addsub_polmod_scal	13456529
addsub_frac_i	14120687
setfrac	14999436
mulcxI	15628982
mulpp	17503172
addsub_pp	19973042
divcR	23352954
mkpadic_mod	24593721
conj_i	31492063
ginv	36545337
mulrfrac	37739049
addsub_frac	40598752
add_scal	42809764
gred_rfrac2	44825557
Leading_is_neg	57792799
gred_rfrac_simple	57796888
gdivgu	60481970
utoi_sign	64652712
Qdivii	141940652
gmul2n	143708277
Qdiviu	148817461
mul_scal	154324073
transtype	154402745
divrunextu	213654923
gmulsg	239650411
gaddsg	270740496
mulcc	279036813
gmulug	283683119
addRc	307877745
mulRc	354501990
gdiv	439094304
gsqr	1184021274
gsub	2887685904
gadd	6148755848
gmul	8693630640

Generated by: LCOV version 1.16